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d0304569fb
44286 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Adrian Hunter
|
d0304569fb |
clocksource: Make watchdog and suspend-timing multiplication overflow safe
Kernel timekeeping is designed to keep the change in cycles (since the last timer interrupt) below max_cycles, which prevents multiplication overflow when converting cycles to nanoseconds. However, if timer interrupts stop, the clocksource_cyc2ns() calculation will eventually overflow. Add protection against that. Simplify by folding together clocksource_delta() and clocksource_cyc2ns() into cycles_to_nsec_safe(). Check against max_cycles, falling back to a slower higher precision calculation. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-20-adrian.hunter@intel.com |
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Adrian Hunter
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135225a363 |
timekeeping: Let timekeeping_cycles_to_ns() handle both under and overflow
For the case !CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE, forego overflow protection in the range (mask << 1) < delta <= mask, and interpret it always as an inconsistency between CPU clock values. That allows slightly neater code, and it is on a slow path so has no effect on performance. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-19-adrian.hunter@intel.com |
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Adrian Hunter
|
fcf190c369 |
timekeeping: Make delta calculation overflow safe
Kernel timekeeping is designed to keep the change in cycles (since the last timer interrupt) below max_cycles, which prevents multiplication overflow when converting cycles to nanoseconds. However, if timer interrupts stop, the calculation will eventually overflow. Add protection against that. In timekeeping_cycles_to_ns() calculation, check against max_cycles, falling back to a slower higher precision calculation. In timekeeping_forward_now(), process delta in chunks of at most max_cycles. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-18-adrian.hunter@intel.com |
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Adrian Hunter
|
e809a80aa0 |
timekeeping: Prepare timekeeping_cycles_to_ns() for overflow safety
Open code clocksource_delta() in timekeeping_cycles_to_ns() so that overflow safety can be added efficiently. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-17-adrian.hunter@intel.com |
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Adrian Hunter
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3094c6db1c |
timekeeping: Fold in timekeeping_delta_to_ns()
timekeeping_delta_to_ns() is now called only from timekeeping_cycles_to_ns(), and it is not useful otherwise. Simplify the code by folding it into timekeeping_cycles_to_ns(). No functional change. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-16-adrian.hunter@intel.com |
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Adrian Hunter
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e84f43e34f |
timekeeping: Consolidate timekeeping helpers
Consolidate timekeeping helpers, making use of timekeeping_cycles_to_ns() in preference to directly using timekeeping_delta_to_ns(). No functional change. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-15-adrian.hunter@intel.com |
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Adrian Hunter
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e8e9d21a5d |
timekeeping: Refactor timekeeping helpers
Simplify the usage of timekeeping sanity checking, in preparation for consolidating timekeeping helpers. This works towards eliminating timekeeping_delta_to_ns() in favour of timekeeping_cycles_to_ns(). No functional change. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-14-adrian.hunter@intel.com |
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Adrian Hunter
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670be12ba8 |
timekeeping: Reuse timekeeping_cycles_to_ns()
Simplify __timekeeping_get_ns() by reusing timekeeping_cycles_to_ns(). No functional change. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-13-adrian.hunter@intel.com |
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Adrian Hunter
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9af4548e82 |
timekeeping: Tidy timekeeping_cycles_to_ns() slightly
Put together declaration and initialization of the local variable 'delta'. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-12-adrian.hunter@intel.com |
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Adrian Hunter
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a729a63c6b |
timekeeping: Rename fast_tk_get_delta_ns() to __timekeeping_get_ns()
Rename fast_tk_get_delta_ns() to __timekeeping_get_ns() to prepare for its reuse as a general timekeeping helper function. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-11-adrian.hunter@intel.com |
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Adrian Hunter
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e98ab3d415 |
timekeeping: Move timekeeping helper functions
Move timekeeping helper functions to prepare for their reuse. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-10-adrian.hunter@intel.com |
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Adrian Hunter
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d2e58ab5cd |
vdso: Add vdso_data:: Max_cycles
Add vdso_data::max_cycles in preparation to use it to detect potential multiplication overflow. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-7-adrian.hunter@intel.com |
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Jiapeng Chong
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82ccdf062a |
hrtimer: Remove unused function
The function is defined, but not called anywhere: kernel/time/hrtimer.c:1880:20: warning: unused function '__hrtimer_peek_ahead_timers'. Remove it. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240322070441.29646-1-jiapeng.chong@linux.alibaba.com Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8611 |
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Linus Torvalds
|
3520c35e5f |
Fix various timer bugs:
- Fix a timer migration bug that may result in missed events - Fix timer migration group hierarchy event updates - Fix a PowerPC64 build warning - Fix a handful of DocBook annotation bugs Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmYSUpsRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1h+/RAAlbYzlotBMM0cqxCng5jgetTT7EfQHXl1 zaqhx2FzEjoyhZ++kpBP03A42LumWz0TXTqRK+BicZIHWvIWz16w7xNr0dHo3+L8 PfPTZEPb1IwSP1FKHyzEZbVWPnHtokyJBky5Qp5IG5FoNqV1pArqeadyaSbd3hIw A3l77wHCtXINkxjROs5EoJiOwVcJWigm4M7189EXDUKKr5nzE0hemNAKGnluQZxj O5gF9vv40B38MLuo3xLDxFCrY8WDcq9yhv/AtBk+952FsceSZbH29zOt1a5l2HPb yvBR4pMaS6x4UdzJeZTbdqDs8v9QWsCUc+qqeNYuFEJSBu9y7Qo5wec8c+Ptiu0E 1we/g4nWRaRnXvGyS1uj448jUZgnGu61KFbCCF+guDl94zKY6TBZfVpeWrF/Xjdr Jq1K8zYMM/+hxlzqsVhoaL+2zAddUeWnwPcSC5J8mnVlyLJUd55Cd0OGcHimz3PV QcimajOcE7e/pkw0eQnRQ6qAVeWXcJY4hWoJS9Nk8F9InfDC7I8T5NgsNVb6Edyx fj2wE/K9lAfKevz49ieJ8ItIIus3Lzmi09pbfDmDP5J9iMyL6UMk2VXj8XAUvCdL qpgigP1zcluwAFqHmaym6mUsej+VL/WqsKfy6Q8LI5yNvdYtUuzfQuqGqyOyGXX0 zJg6+qU7OAE= =4VkW -----END PGP SIGNATURE----- Merge tag 'timers-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Fix various timer bugs: - Fix a timer migration bug that may result in missed events - Fix timer migration group hierarchy event updates - Fix a PowerPC64 build warning - Fix a handful of DocBook annotation bugs" * tag 'timers-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timers/migration: Return early on deactivation timers/migration: Fix ignored event due to missing CPU update vdso: Use CONFIG_PAGE_SHIFT in vdso/datapage.h timers: Fix text inconsistencies and spelling tick/sched: Fix struct tick_sched doc warnings tick/sched: Fix various kernel-doc warnings timers: Fix kernel-doc format and add Return values time/timekeeping: Fix kernel-doc warnings and typos time/timecounter: Fix inline documentation |
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Anna-Maria Behnsen
|
7a96a84bfb |
timers/migration: Return early on deactivation
Commit |
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Frederic Weisbecker
|
61f7fdf8fd |
timers/migration: Fix ignored event due to missing CPU update
When a group event is updated with its expiry unchanged but a different
CPU, that target change may go unnoticed and the event may be propagated
up with a stale CPU value. The following depicts a scenario that has
been actually observed:
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = TGRP1:0 (T0)
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T0
/ \
0 (T0) 1 (T1)
idle idle
0) The hierarchy has 3 levels. The left part (GRP1:0) is all idle,
including CPU 0 and CPU 1 which have a timer each: T0 and T1. They have
the same expiry value.
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = KTIME_MAX
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T0
/ \
0 (T0) 1 (T1)
idle idle
1) The migrator in GRP1:1 handles remotely T0. The event is dequeued
from the top and T0 executed.
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = KTIME_MAX
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T1
/ \
0 1 (T1)
idle idle
2) The migrator in GRP1:1 fetches the next timer for CPU 0 and finds
none. But it updates the events from its groups, starting with GRP0:0
which now has T1 as its next event. So far so good.
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = KTIME_MAX
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T1
/ \
0 1 (T1)
idle idle
3) The migrator in GRP1:1 proceeds upward and updates the events in
GRP1:0. The child event TGRP0:0 is found queued with the same expiry
as before. And therefore it is left unchanged. However the target CPU
is not the same but that fact is ignored so TGRP0:0 still points to
CPU 0 when it should point to CPU 1.
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = TGRP1:0 (T0)
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T1
/ \
0 1 (T1)
idle idle
4) The propagation has reached the top level and TGRP1:0, having TGRP0:0
as its first event, also wrongly points to CPU 0. TGRP1:0 is added to
the top level group.
[GRP2:0]
migrator = GRP1:1
active = GRP1:1
nextevt = KTIME_MAX
/ \
[GRP1:0] [GRP1:1]
migrator = NONE [...]
active = NONE
nextevt = TGRP0:0 (T0)
/ \
[GRP0:0] [...]
migrator = NONE
active = NONE
nextevt = T1
/ \
0 1 (T1)
idle idle
5) The migrator in GRP1:1 dequeues the next event in top level pointing
to CPU 0. But since it actually doesn't see any real event in CPU 0, it
early returns.
6) T1 is left unhandled until either CPU 0 or CPU 1 wake up.
Some other bad scenario may involve trees with just two levels.
Fix this with unconditionally updating the CPU of the child event before
considering to early return while updating a queued event with an
unchanged expiry value.
Fixes:
|
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|
Linus Torvalds
|
c88b9b4cde |
Including fixes from netfilter, bluetooth and bpf.
Fairly usual collection of driver and core fixes. The large selftest
accompanying one of the fixes is also becoming a common occurrence.
Current release - regressions:
- ipv6: fix infinite recursion in fib6_dump_done()
- net/rds: fix possible null-deref in newly added error path
Current release - new code bugs:
- net: do not consume a full cacheline for system_page_pool
- bpf: fix bpf_arena-related file descriptor leaks in the verifier
- drv: ice: fix freeing uninitialized pointers, fixing misuse of
the newfangled __free() auto-cleanup
Previous releases - regressions:
- x86/bpf: fixes the BPF JIT with retbleed=stuff
- xen-netfront: add missing skb_mark_for_recycle, fix page pool
accounting leaks, revealed by recently added explicit warning
- tcp: fix bind() regression for v6-only wildcard and v4-mapped-v6
non-wildcard addresses
- Bluetooth:
- replace "hci_qca: Set BDA quirk bit if fwnode exists in DT"
with better workarounds to un-break some buggy Qualcomm devices
- set conn encrypted before conn establishes, fix re-connecting
to some headsets which use slightly unusual sequence of msgs
- mptcp:
- prevent BPF accessing lowat from a subflow socket
- don't account accept() of non-MPC client as fallback to TCP
- drv: mana: fix Rx DMA datasize and skb_over_panic
- drv: i40e: fix VF MAC filter removal
Previous releases - always broken:
- gro: various fixes related to UDP tunnels - netns crossing problems,
incorrect checksum conversions, and incorrect packet transformations
which may lead to panics
- bpf: support deferring bpf_link dealloc to after RCU grace period
- nf_tables:
- release batch on table validation from abort path
- release mutex after nft_gc_seq_end from abort path
- flush pending destroy work before exit_net release
- drv: r8169: skip DASH fw status checks when DASH is disabled
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, bluetooth and bpf.
Fairly usual collection of driver and core fixes. The large selftest
accompanying one of the fixes is also becoming a common occurrence.
Current release - regressions:
- ipv6: fix infinite recursion in fib6_dump_done()
- net/rds: fix possible null-deref in newly added error path
Current release - new code bugs:
- net: do not consume a full cacheline for system_page_pool
- bpf: fix bpf_arena-related file descriptor leaks in the verifier
- drv: ice: fix freeing uninitialized pointers, fixing misuse of the
newfangled __free() auto-cleanup
Previous releases - regressions:
- x86/bpf: fixes the BPF JIT with retbleed=stuff
- xen-netfront: add missing skb_mark_for_recycle, fix page pool
accounting leaks, revealed by recently added explicit warning
- tcp: fix bind() regression for v6-only wildcard and v4-mapped-v6
non-wildcard addresses
- Bluetooth:
- replace "hci_qca: Set BDA quirk bit if fwnode exists in DT" with
better workarounds to un-break some buggy Qualcomm devices
- set conn encrypted before conn establishes, fix re-connecting to
some headsets which use slightly unusual sequence of msgs
- mptcp:
- prevent BPF accessing lowat from a subflow socket
- don't account accept() of non-MPC client as fallback to TCP
- drv: mana: fix Rx DMA datasize and skb_over_panic
- drv: i40e: fix VF MAC filter removal
Previous releases - always broken:
- gro: various fixes related to UDP tunnels - netns crossing
problems, incorrect checksum conversions, and incorrect packet
transformations which may lead to panics
- bpf: support deferring bpf_link dealloc to after RCU grace period
- nf_tables:
- release batch on table validation from abort path
- release mutex after nft_gc_seq_end from abort path
- flush pending destroy work before exit_net release
- drv: r8169: skip DASH fw status checks when DASH is disabled"
* tag 'net-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
netfilter: validate user input for expected length
net/sched: act_skbmod: prevent kernel-infoleak
net: usb: ax88179_178a: avoid the interface always configured as random address
net: dsa: sja1105: Fix parameters order in sja1110_pcs_mdio_write_c45()
net: ravb: Always update error counters
net: ravb: Always process TX descriptor ring
netfilter: nf_tables: discard table flag update with pending basechain deletion
netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()
netfilter: nf_tables: reject new basechain after table flag update
netfilter: nf_tables: flush pending destroy work before exit_net release
netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path
netfilter: nf_tables: release batch on table validation from abort path
Revert "tg3: Remove residual error handling in tg3_suspend"
tg3: Remove residual error handling in tg3_suspend
net: mana: Fix Rx DMA datasize and skb_over_panic
net/sched: fix lockdep splat in qdisc_tree_reduce_backlog()
net: phy: micrel: lan8814: Fix when enabling/disabling 1-step timestamping
net: stmmac: fix rx queue priority assignment
net: txgbe: fix i2c dev name cannot match clkdev
net: fec: Set mac_managed_pm during probe
...
|
||
Randy Dunlap
|
9e643ab59d |
timers: Fix text inconsistencies and spelling
Fix some text for consistency: s/lvl/level/ in a comment and use correct/full function names in comments. Correct spelling errors as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240331172652.14086-7-rdunlap@infradead.org |
||
|
Randy Dunlap
|
ba6ad57b80 |
tick/sched: Fix struct tick_sched doc warnings
Fix kernel-doc warnings in struct tick_sched: tick-sched.h:103: warning: Function parameter or struct member 'idle_sleeptime_seq' not described in 'tick_sched' tick-sched.h:104: warning: Excess struct member 'nohz_mode' description in 'tick_sched' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240331172652.14086-6-rdunlap@infradead.org |
||
|
Randy Dunlap
|
f29536bf17 |
tick/sched: Fix various kernel-doc warnings
Fix a slew of kernel-doc warnings in tick-sched.c: tick-sched.c:650: warning: Function parameter or struct member 'now' not described in 'tick_nohz_update_jiffies' tick-sched.c:741: warning: No description found for return value of 'get_cpu_idle_time_us' tick-sched.c:767: warning: No description found for return value of 'get_cpu_iowait_time_us' tick-sched.c:1210: warning: No description found for return value of 'tick_nohz_idle_got_tick' tick-sched.c:1228: warning: No description found for return value of 'tick_nohz_get_next_hrtimer' tick-sched.c:1243: warning: No description found for return value of 'tick_nohz_get_sleep_length' tick-sched.c:1282: warning: Function parameter or struct member 'cpu' not described in 'tick_nohz_get_idle_calls_cpu' tick-sched.c:1282: warning: No description found for return value of 'tick_nohz_get_idle_calls_cpu' tick-sched.c:1294: warning: No description found for return value of 'tick_nohz_get_idle_calls' tick-sched.c:1577: warning: Function parameter or struct member 'hrtimer' not described in 'tick_setup_sched_timer' tick-sched.c:1577: warning: Excess function parameter 'mode' description in 'tick_setup_sched_timer' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240331172652.14086-5-rdunlap@infradead.org |
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|
Linus Torvalds
|
7e40c2100c |
Kbuild fixes for v6.9
- Deduplicate Kconfig entries for CONFIG_CXL_PMU
- Fix unselectable choice entry in MIPS Kconfig, and forbid this
structure
- Remove unused include/asm-generic/export.h
- Fix a NULL pointer dereference bug in modpost
- Enable -Woverride-init warning consistently with W=1
- Drop KCSAN flags from *.mod.c files
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Merge tag 'kbuild-fixes-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Deduplicate Kconfig entries for CONFIG_CXL_PMU
- Fix unselectable choice entry in MIPS Kconfig, and forbid this
structure
- Remove unused include/asm-generic/export.h
- Fix a NULL pointer dereference bug in modpost
- Enable -Woverride-init warning consistently with W=1
- Drop KCSAN flags from *.mod.c files
* tag 'kbuild-fixes-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: Fix typo HEIGTH to HEIGHT
Documentation/llvm: Note s390 LLVM=1 support with LLVM 18.1.0 and newer
kbuild: Disable KCSAN for autogenerated *.mod.c intermediaries
kbuild: make -Woverride-init warnings more consistent
modpost: do not make find_tosym() return NULL
export.h: remove include/asm-generic/export.h
kconfig: do not reparent the menu inside a choice block
MIPS: move unselectable FIT_IMAGE_FDT_EPM5 out of the "System type" choice
cxl: remove CONFIG_CXL_PMU entry in drivers/cxl/Kconfig
|
||
|
Linus Torvalds
|
5dad26235c |
- Fix an unused function warning on irqchip/irq-armada-370-xp
- Fix the IRQ sharing with pinctrl-amd and ACPI OSL -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmYJSYMACgkQEsHwGGHe VUoWag//STcc2r8aw6PdAvtm0VlUqY1oTrvMK6jvJORXFYEFl+R9lMW7sg9jAsDo fCcmRWFLD1dLy+eU+QNW4WNeqBlfODHKWQsxxtP9gl93qxvRAF6gvWW06JURvIoL yqrJGj9P3X7WsccaQAhOPpDKg93yU+uXvhc3J3Edi0WXsdBZ2g6jsAFj35TbAPb/ DRl+8uFO3lGzF64ygg2hUFBPYE1tAEApbHrTpahQBHwiyA3iCKg0djgI9fnIM5E0 Q4mCtcs6JwkpRY5Z/QYLT/VJsrFmVrxRyBnPAWZ677x/QTfGZk/QKZ7kDkQuTh/k jmfUVeJ4hnWmBg72GwYuahqKLlPlGUeG3iePQtw2rAKpDCU7xC3QMxbKzrVTCYKU JG75uIzO7+0W0IBYLRAG+TYI/YVyK+UlbLV4AAu2QtEiqJ6pQ2ZLg9NcDtnJjNqU CdwVgOeRGLLvQnKvS3Slj3+Z1wGEIFDE/w0dl9B0YEYMKiZNPoiClE/7VEA3b4Rn Q8jsT9WoiiagFFwvkTpCofjvTgioOLXJ8h7adxREi9GSYQy2mxq8XsZQEViozM5W mBVPRd2PCS7xIRwTBMehiK6Zta56z9h7RYhhpW2oPYy38/tHyhvvlyso9DF+I9pD uQkOKfDDh26IRFBr0fMR8dD0Host8xDQS1h+hCwyi4iPX8sgB/A= =80JR -----END PGP SIGNATURE----- Merge tag 'irq_urgent_for_v6.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Borislav Petkov: - Fix an unused function warning on irqchip/irq-armada-370-xp - Fix the IRQ sharing with pinctrl-amd and ACPI OSL * tag 'irq_urgent_for_v6.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/armada-370-xp: Suppress unused-function warning genirq: Introduce IRQF_COND_ONESHOT and use it in pinctrl-amd |
||
Arnd Bergmann
|
c40845e319 |
kbuild: make -Woverride-init warnings more consistent
The -Woverride-init warn about code that may be intentional or not,
but the inintentional ones tend to be real bugs, so there is a bit of
disagreement on whether this warning option should be enabled by default
and we have multiple settings in scripts/Makefile.extrawarn as well as
individual subsystems.
Older versions of clang only supported -Wno-initializer-overrides with
the same meaning as gcc's -Woverride-init, though all supported versions
now work with both. Because of this difference, an earlier cleanup of
mine accidentally turned the clang warning off for W=1 builds and only
left it on for W=2, while it's still enabled for gcc with W=1.
There is also one driver that only turns the warning off for newer
versions of gcc but not other compilers, and some but not all the
Makefiles still use a cc-disable-warning conditional that is no
longer needed with supported compilers here.
Address all of the above by removing the special cases for clang
and always turning the warning off unconditionally where it got
in the way, using the syntax that is supported by both compilers.
Fixes:
|
||
Anton Protopopov
|
6dae957c8e |
bpf: fix possible file descriptor leaks in verifier
The resolve_pseudo_ldimm64() function might have leaked file
descriptors when BPF_MAP_TYPE_ARENA was used in a program (some
error paths missed a corresponding fdput). Add missing fdputs.
v2:
remove unrelated changes from the fix
Fixes:
|
||
Andrii Nakryiko
|
1a80dbcb2d |
bpf: support deferring bpf_link dealloc to after RCU grace period
BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and multi-uprobes, link is used to fetch BPF cookie values. Because of this runtime dependency, when bpf_link refcnt drops to zero there could still be active BPF programs running accessing link data. This patch adds generic support to defer bpf_link dealloc callback to after RCU GP, if requested. This is done by exposing two different deallocation callbacks, one synchronous and one deferred. If deferred one is provided, bpf_link_free() will schedule dealloc_deferred() callback to happen after RCU GP. BPF is using two flavors of RCU: "classic" non-sleepable one and RCU tasks trace one. The latter is used when sleepable BPF programs are used. bpf_link_free() accommodates that by checking underlying BPF program's sleepable flag, and goes either through normal RCU GP only for non-sleepable, or through RCU tasks trace GP *and* then normal RCU GP (taking into account rcu_trace_implies_rcu_gp() optimization), if BPF program is sleepable. We use this for multi-kprobe and multi-uprobe links, which dereference link during program run. We also preventively switch raw_tp link to use deferred dealloc callback, as upcoming changes in bpf-next tree expose raw_tp link data (specifically, cookie value) to BPF program at runtime as well. Fixes: |
||
|
Andrii Nakryiko
|
e9c856cabe |
bpf: put uprobe link's path and task in release callback
There is no need to delay putting either path or task to deallocation step. It can be done right after bpf_uprobe_unregister. Between release and dealloc, there could be still some running BPF programs, but they don't access either task or path, only data in link->uprobes, so it is safe to do. On the other hand, doing path_put() in dealloc callback makes this dealloc sleepable because path_put() itself might sleep. Which is problematic due to the need to call uprobe's dealloc through call_rcu(), which is what is done in the next bug fix patch. So solve the problem by releasing these resources early. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20240328052426.3042617-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
50108c352d |
Including fixes from bpf, WiFi and netfilter.
Current release - regressions:
- ipv6: fix address dump when IPv6 is disabled on an interface
Current release - new code bugs:
- bpf: temporarily disable atomic operations in BPF arena
- nexthop: fix uninitialized variable in nla_put_nh_group_stats()
Previous releases - regressions:
- bpf: protect against int overflow for stack access size
- hsr: fix the promiscuous mode in offload mode
- wifi: don't always use FW dump trig
- tls: adjust recv return with async crypto and failed copy to userspace
- tcp: properly terminate timers for kernel sockets
- ice: fix memory corruption bug with suspend and rebuild
- at803x: fix kernel panic with at8031_probe
- qeth: handle deferred cc1
Previous releases - always broken:
- bpf: fix bug in BPF_LDX_MEMSX
- netfilter: reject table flag and netdev basechain updates
- inet_defrag: prevent sk release while still in use
- wifi: pick the version of SESSION_PROTECTION_NOTIF
- wwan: t7xx: split 64bit accesses to fix alignment issues
- mlxbf_gige: call request_irq() after NAPI initialized
- hns3: fix kernel crash when devlink reload during pf initialization
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf, WiFi and netfilter.
Current release - regressions:
- ipv6: fix address dump when IPv6 is disabled on an interface
Current release - new code bugs:
- bpf: temporarily disable atomic operations in BPF arena
- nexthop: fix uninitialized variable in nla_put_nh_group_stats()
Previous releases - regressions:
- bpf: protect against int overflow for stack access size
- hsr: fix the promiscuous mode in offload mode
- wifi: don't always use FW dump trig
- tls: adjust recv return with async crypto and failed copy to
userspace
- tcp: properly terminate timers for kernel sockets
- ice: fix memory corruption bug with suspend and rebuild
- at803x: fix kernel panic with at8031_probe
- qeth: handle deferred cc1
Previous releases - always broken:
- bpf: fix bug in BPF_LDX_MEMSX
- netfilter: reject table flag and netdev basechain updates
- inet_defrag: prevent sk release while still in use
- wifi: pick the version of SESSION_PROTECTION_NOTIF
- wwan: t7xx: split 64bit accesses to fix alignment issues
- mlxbf_gige: call request_irq() after NAPI initialized
- hns3: fix kernel crash when devlink reload during pf
initialization"
* tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
inet: inet_defrag: prevent sk release while still in use
Octeontx2-af: fix pause frame configuration in GMP mode
net: lan743x: Add set RFE read fifo threshold for PCI1x1x chips
net: bcmasp: Remove phy_{suspend/resume}
net: bcmasp: Bring up unimac after PHY link up
net: phy: qcom: at803x: fix kernel panic with at8031_probe
netfilter: arptables: Select NETFILTER_FAMILY_ARP when building arp_tables.c
netfilter: nf_tables: skip netdev hook unregistration if table is dormant
netfilter: nf_tables: reject table flag and netdev basechain updates
netfilter: nf_tables: reject destroy command to remove basechain hooks
bpf: update BPF LSM designated reviewer list
bpf: Protect against int overflow for stack access size
bpf: Check bloom filter map value size
bpf: fix warning for crash_kexec
selftests: netdevsim: set test timeout to 10 minutes
net: wan: framer: Add missing static inline qualifiers
mlxbf_gige: call request_irq() after NAPI initialized
tls: get psock ref after taking rxlock to avoid leak
selftests: tls: add test with a partially invalid iov
tls: adjust recv return with async crypto and failed copy to userspace
...
|
||
|
Linus Torvalds
|
dc189b8e6a |
21 hotfixes. 11 are cc:stable and the remainder address post-6.8 issues
or aren't considered suitable for backporting. zswap figures prominently in the post-6.8 issues - folloup against the large amount of changes we have just made to that code. Apart from that, all over the map. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZgRltQAKCRDdBJ7gKXxA jvxhAP0SCuKnuzs/K8BTnO4CHXJPPXMhdWFbFjUOKoNToAwRJQEA0+5NvpAEtbov ljCkRZ3hXHJ6D5MH2vXSJIbkjekz/gg= =0j71 -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2024-03-27-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "Various hotfixes. About half are cc:stable and the remainder address post-6.8 issues or aren't considered suitable for backporting. zswap figures prominently in the post-6.8 issues - folloup against the large amount of changes we have just made to that code. Apart from that, all over the map" * tag 'mm-hotfixes-stable-2024-03-27-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits) crash: use macro to add crashk_res into iomem early for specific arch mm: zswap: fix data loss on SWP_SYNCHRONOUS_IO devices selftests/mm: fix ARM related issue with fork after pthread_create hexagon: vmlinux.lds.S: handle attributes section userfaultfd: fix deadlock warning when locking src and dst VMAs tmpfs: fix race on handling dquot rbtree selftests/mm: sigbus-wp test requires UFFD_FEATURE_WP_HUGETLBFS_SHMEM mm: zswap: fix writeback shinker GFP_NOIO/GFP_NOFS recursion ARM: prctl: reject PR_SET_MDWE on pre-ARMv6 prctl: generalize PR_SET_MDWE support check to be per-arch MAINTAINERS: remove incorrect M: tag for dm-devel@lists.linux.dev mm: zswap: fix kernel BUG in sg_init_one selftests: mm: restore settings from only parent process tools/Makefile: remove cgroup target mm: cachestat: fix two shmem bugs mm: increase folio batch size mm,page_owner: fix recursion mailmap: update entry for Leonard Crestez init: open /initrd.image with O_LARGEFILE selftests/mm: Fix build with _FORTIFY_SOURCE ... |
||
|
Linus Torvalds
|
962490525c |
Probes fixes for v6.9-rc1:
- tracing/probes: initialize a 'val' local variable with zero. This variable
is read by FETCH_OP_ST_EDATA in a loop, and is expected to be initialized
by FETCH_OP_ARG in the same loop. Since this expectation is not obvious,
thus smatch warns it. Initializing 'val' with zero fixes this warning.
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Merge tag 'probes-fixes-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixlet from Masami Hiramatsu:
- tracing/probes: initialize a 'val' local variable with zero.
This variable is read by FETCH_OP_ST_EDATA in a loop, and is
initialized by FETCH_OP_ARG in the same loop. Since this
initialization is not obvious, smatch warns about it.
Explicitly initializing 'val' with zero fixes this warning.
* tag 'probes-fixes-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: probes: Fix to zero initialize a local variable
|
||
Andrei Matei
|
ecc6a21018 |
bpf: Protect against int overflow for stack access size
This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail. This check used to exist in a more indirect way, but was inadvertendly removed in |
||
|
Andrei Matei
|
a8d89feba7 |
bpf: Check bloom filter map value size
This patch adds a missing check to bloom filter creating, rejecting values above KMALLOC_MAX_SIZE. This brings the bloom map in line with many other map types. The lack of this protection can cause kernel crashes for value sizes that overflow int's. Such a crash was caught by syzkaller. The next patch adds more guard-rails at a lower level. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20240327024245.318299-2-andreimatei1@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
5b4cdd9c56 |
Fix memory leak in posix_clock_open()
If the clk ops.open() function returns an error, we don't release the
pccontext we allocated for this clock.
Re-organize the code slightly to make it all more obvious.
Reported-by: Rohit Keshri <rkeshri@redhat.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Fixes:
|
||
Hari Bathini
|
96b98a6552 |
bpf: fix warning for crash_kexec
With [1], crash dump specific code is moved out of CONFIG_KEXEC_CORE
and placed under CONFIG_CRASH_DUMP, where it is more appropriate.
And since CONFIG_KEXEC & !CONFIG_CRASH_DUMP build option is supported
with that, it led to the below warning:
"WARN: resolve_btfids: unresolved symbol crash_kexec"
Fix it by using the appropriate #ifdef.
[1] https://lore.kernel.org/all/20240124051254.67105-1-bhe@redhat.com/
Acked-by: Baoquan He <bhe@redhat.com>
Fixes:
|
||
Baoquan He
|
32fbe52465 |
crash: use macro to add crashk_res into iomem early for specific arch
There are regression reports[1][2] that crashkernel region on x86_64 can't be added into iomem tree sometime. This causes the later failure of kdump loading. This happened after commit |
||
Zev Weiss
|
d5aad4c2ca |
prctl: generalize PR_SET_MDWE support check to be per-arch
Patch series "ARM: prctl: Reject PR_SET_MDWE where not supported".
I noticed after a recent kernel update that my ARM926 system started
segfaulting on any execve() after calling prctl(PR_SET_MDWE). After some
investigation it appears that ARMv5 is incapable of providing the
appropriate protections for MDWE, since any readable memory is also
implicitly executable.
The prctl_set_mdwe() function already had some special-case logic added
disabling it on PARISC (commit
|
||
|
Linus Torvalds
|
7033999ecd |
printk changes for 6.9-rc2
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||
Paolo Abeni
|
37ccdf7f11 |
bpf-for-netdev
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZgHmTAAKCRDbK58LschI g1gWAP9HjAWE/Sy0B2t9opIiTqRzdMJLYs2B4OFeHRI6+qQg0gD6A4jsKEh/xmtG Hhjw+AElJRFZ3SUIT4mZlljzUHIYYAA= =T0lM -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2024-03-25 The following pull-request contains BPF updates for your *net* tree. We've added 17 non-merge commits during the last 12 day(s) which contain a total of 19 files changed, 184 insertions(+), 61 deletions(-). The main changes are: 1) Fix an arm64 BPF JIT bug in BPF_LDX_MEMSX implementation's offset handling found via test_bpf module, from Puranjay Mohan. 2) Various fixups to the BPF arena code in particular in the BPF verifier and around BPF selftests to match latest corresponding LLVM implementation, from Puranjay Mohan and Alexei Starovoitov. 3) Fix xsk to not assume that metadata is always requested in TX completion, from Stanislav Fomichev. 4) Fix riscv BPF JIT's kfunc parameter incompatibility between BPF and the riscv ABI which requires sign-extension on int/uint, from Pu Lehui. 5) Fix s390x BPF JIT's bpf_plt pointer arithmetic which triggered a crash when testing struct_ops, from Ilya Leoshkevich. 6) Fix libbpf's arena mmap handling which had incorrect u64-to-pointer cast on 32-bit architectures, from Andrii Nakryiko. 7) Fix libbpf to define MFD_CLOEXEC when not available, from Arnaldo Carvalho de Melo. 8) Fix arm64 BPF JIT implementation for 32bit unconditional bswap which resulted in an incorrect swap as indicated by test_bpf, from Artem Savkov. 9) Fix BPF man page build script to use silent mode, from Hangbin Liu. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: riscv, bpf: Fix kfunc parameters incompatibility between bpf and riscv abi bpf: verifier: reject addr_space_cast insn without arena selftests/bpf: verifier_arena: fix mmap address for arm64 bpf: verifier: fix addr_space_cast from as(1) to as(0) libbpf: Define MFD_CLOEXEC if not available arm64: bpf: fix 32bit unconditional bswap bpf, arm64: fix bug in BPF_LDX_MEMSX libbpf: fix u64-to-pointer cast on 32-bit arches s390/bpf: Fix bpf_plt pointer arithmetic xsk: Don't assume metadata is always requested in TX completion selftests/bpf: Add arena test case for 4Gbyte corner case selftests/bpf: Remove hard coded PAGE_SIZE macro. libbpf, selftests/bpf: Adjust libbpf, bpftool, selftests to match LLVM bpf: Clarify bpf_arena comments. MAINTAINERS: Update email address for Quentin Monnet scripts/bpf_doc: Use silent mode when exec make cmd bpf: Temporarily disable atomic operations in BPF arena ==================== Link: https://lore.kernel.org/r/20240325213520.26688-1-daniel@iogearbox.net Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Rafael J. Wysocki
|
c2ddeb2961 |
genirq: Introduce IRQF_COND_ONESHOT and use it in pinctrl-amd
There is a problem when a driver requests a shared interrupt line to run a threaded handler on it without IRQF_ONESHOT set if that flag has been set already for the IRQ in question by somebody else. Namely, the request fails which usually leads to a probe failure even though the driver might have worked just fine with IRQF_ONESHOT, but it does not want to use it by default. Currently, the only way to handle this is to try to request the IRQ without IRQF_ONESHOT, but with IRQF_PROBE_SHARED set and if this fails, try again with IRQF_ONESHOT set. However, this is a bit cumbersome and not very clean. When commit |
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Linus Torvalds
|
174fdc93a2 |
This push fixes a regression that broke iwd as well as a divide by
zero in iaa. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmX9buQACgkQxycdCkmx i6dw1w/+IiwZX9A62NLDEBJbaXavQEHqoI1mhXq4Zwqeor5DhUlUGbmAhdZ5bg88 oA60zjroLgt+Wke3phXFMjavSdwyLMd8zkDU3BjhqHAD6ASZz4ml51MCi48ROKB8 lKSSAvjJX3VAHlYSxctUB/KWfzZZaGGUWQdtkC/90Tqp6OGeVyBbQCiQPyF4I55P e1B8ADY5Ey2d+Rgos1whMuLkKa077yoWdiDgX5PFjfGalRdNh4jNsojrCSx6AEiI KijWUtaGBNj9Exc04NeCa0JQNff4vynhn21ygMbgPMEMTde0SlHHdf6FWKrZcm6h JlNYYVGXjcobMC62dQdTosTLxuAqSd4kr5UaiCjO52QdM8txfBJCm/PDARS2z9Gl xROvBpOfRSn0Z8GpuHaBMNot4DlKv6y/puwmef6o3qYlUJH+CnuHUFaLOHRYVt6d B0tWi7PWyx2jorj0VHUCpqiGGYlbUq6lWhGYt8XzPHeQ2ZewzH6EbbF5qKpEWGiB 3X8Dxl1PpO8sSwOQRabBpoWoXxJLL6G9uvyJCjJeftL9ZDEeTBDvdA9qis7t7kR5 Ckv4q/5rOq4MK3NsXsL6lJZY7ckQavLhCoZlRU9kcQt3MG06i6KUDoo83L/49rUL zq5adU8sI3lP/2VplfA0XEeYFuLlBWH4TwNAmwJBRoWFiG8j8XM= =Mau0 -----END PGP SIGNATURE----- Merge tag 'v6.9-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes a regression that broke iwd as well as a divide by zero in iaa" * tag 'v6.9-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: iaa - Fix nr_cpus < nr_iaa case Revert "crypto: pkcs7 - remove sha1 support" |
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Masami Hiramatsu (Google)
|
0add699ad0 |
tracing: probes: Fix to zero initialize a local variable
Fix to initialize 'val' local variable with zero.
Dan reported that Smatch static code checker reports an error that a local
'val' variable needs to be initialized. Actually, the 'val' is expected to
be initialized by FETCH_OP_ARG in the same loop, but it is not obvious. So
initialize it with zero.
Link: https://lore.kernel.org/all/171092223833.237219.17304490075697026697.stgit@devnote2/
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/b010488e-68aa-407c-add0-3e059254aaa0@moroto.mountain/
Fixes:
|
||
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Linus Torvalds
|
864ad046c1 |
dma-mapping fixes for Linux 6.9
This has a set of swiotlb alignment fixes for sometimes very long standing bugs from Will. We've been discussion them for a while and they should be solid now. -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmX/bmILHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYOuKQ//cUR3EywszAc04x8dIYsfegFGdQxUeJD0+1elAPss ELiqrlg5A/Yn4uHKpXjWbvJ+v1Ywh3o8+vlgUiG4aFeg4xEd+FsJqm2SDa3jhdMP 2hV8pwB92kpkKCxyCAqx8O/4o4fY++KCFsOtnammEudFjurJaCrRTlauOn6D1t/i JsBYCFtjFIhIPHQe7jmZ6dNiLEfiIJ+q8ImW+UxuB+gOGgU8C4VVW3tHuo3KeU7n yVOcz4yJrQ4xYzG3RKtaU0FE0ybA860xwiA5oPvqpI9A2ISGovv7ik0QCUlHXhff z+iL8Lj/KsOucq5pBDhbRYeN2n4VVogEwb/hut6mgyqj1ESjqeZaLioVHqOTDbmB +vNTVBt6OGTOq1YkNKttK9vBBXs5RdZSBalzBG/QO1ewmrNVVZ7z8fWXVRDipoIl sAIXmI8xAy5TNL6UbJ+RDfYeLlTzHjXGKQGB49gumOA8s4w5P5v9diYegX6GcVZV PKkYLOvprwcyi8Xxx2mNxFDxh+LWqzMYqzwsN7AoRTW4TRc7Tel0G6Axs+V/cL/Y 23IHfFfT2HqDUM5PuBfUcgCrtw1hinuD80xqXVcvaU+AYoQhrGHJFLHkj6lTwV2b hmuul170froI2A/vm8yGGqcn2Me55AexlpMab+UWL+iisGtqFTWi9b9vK/2Vi+Zj wBg= =Xaob -----END PGP SIGNATURE----- Merge tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping fixes from Christoph Hellwig: "This has a set of swiotlb alignment fixes for sometimes very long standing bugs from Will. We've been discussion them for a while and they should be solid now" * tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE iommu/dma: Force swiotlb_max_mapping_size on an untrusted device swiotlb: Fix alignment checks when both allocation and DMA masks are present swiotlb: Honour dma_alloc_coherent() alignment in swiotlb_alloc() swiotlb: Enforce page alignment in swiotlb_alloc() swiotlb: Fix double-allocation of slots due to broken alignment handling |
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|
Linus Torvalds
|
70293240c5 |
Two regression fixes for the timer and timer migration code:
1) Prevent endless timer requeuing which is caused by two CPUs racing out
of idle. This happens when the last CPU goes idle and therefore has to
ensure to expire the pending global timers and some other CPU come out
of idle at the same time and the other CPU wins the race and expires
the global queue. This causes the last CPU to chase ghost timers
forever and reprogramming it's clockevent device endlessly.
Cure this by re-evaluating the wakeup time unconditionally.
2) The split into local (pinned) and global timers in the timer wheel
caused a regression for NOHZ full as it broke the idle tracking of
global timers. On NOHZ full this prevents an self IPI being sent which
in turn causes the timer to be not programmed and not being expired on
time.
Restore the idle tracking for the global timer base so that the self
IPI condition for NOHZ full is working correctly again.
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Merge tag 'timers-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two regression fixes for the timer and timer migration code:
- Prevent endless timer requeuing which is caused by two CPUs racing
out of idle. This happens when the last CPU goes idle and therefore
has to ensure to expire the pending global timers and some other
CPU come out of idle at the same time and the other CPU wins the
race and expires the global queue. This causes the last CPU to
chase ghost timers forever and reprogramming it's clockevent device
endlessly.
Cure this by re-evaluating the wakeup time unconditionally.
- The split into local (pinned) and global timers in the timer wheel
caused a regression for NOHZ full as it broke the idle tracking of
global timers. On NOHZ full this prevents an self IPI being sent
which in turn causes the timer to be not programmed and not being
expired on time.
Restore the idle tracking for the global timer base so that the
self IPI condition for NOHZ full is working correctly again"
* tag 'timers-urgent-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Fix removed self-IPI on global timer's enqueue in nohz_full
timers/migration: Fix endless timer requeue after idle interrupts
|
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Linus Torvalds
|
976b029d06 |
A single fix for the generic entry code:
THe trace_sys_enter() tracepoint can modify the syscall number via kprobes or BPF in pt_regs, but that requires that the syscall number is re-evaluted from pt_regs after the tracepoint. A seccomp fix in that area removed the re-evaluation so the change does not take effect as the code just uses the locally cached number. Restore the original behaviour by re-evaluating the syscall number after the tracepoint. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmX/LJoTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYodkJEACFbJqxdlpoWvc8lpYd0htqP+EyN6li quMk+acE8IOtiqOetphOrmKGzBYdtpNu+7uWVeRTyCarm2Gb5lX1GnIMwyEK8R25 R+fVbPaECldSUKypAbTze2RpJl/vp2jeKhCpOn3A5MpITd0vV9SEs+9hecBz3ucZ CXB4vPR7n8VxHX5ArbHqe05fF5TnSZ4CnpeWONQghGsEaSJ87XrljVfC/fxmb7mZ yB2KAIKeYqslvoFoIWSAJk6xvwcGC08vY8mxkM6n61yXmAZ33BWvpnafGHsstF/V gT9Kmvs7F6Tn6V5j0SUuC4/nUO/dtEDhvra793OSvR/rB3+AmZfECPQaDNIJqNaG 0pG558E+hrnpV/YWGzRYJCtqUgtTS0kV5JJY9ffoJRQB3Nb7GCeyykDcs823Yt7j A5o3JUQU0kW4X08hGFMU6DSFppxp9nS0eXDoKMlVRmDB8l30bLK+tMPMaID6yGse 0UafVMWRhtM85mqNVZIZKTsRuONvT+8PV2UH5cNryGmjjbykLmjSLFRvXBmk2Jl+ uhcc0QaApQleA/H/fSNoyPFOPCqvDBEo4xM9e3ypc8TflOQegZfpzrjAITHzv9hY r4ci8faKXTR7jY70a6TiEgcGYYLYDmyvOL0I+TwYA9qHB7tEaJMF6YfU8UDsM9K2 Gb4l6n8fNQubTg== =iW0L -----END PGP SIGNATURE----- Merge tag 'core-entry-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core entry fix from Thomas Gleixner: "A single fix for the generic entry code: The trace_sys_enter() tracepoint can modify the syscall number via kprobes or BPF in pt_regs, but that requires that the syscall number is re-evaluted from pt_regs after the tracepoint. A seccomp fix in that area removed the re-evaluation so the change does not take effect as the code just uses the locally cached number. Restore the original behaviour by re-evaluating the syscall number after the tracepoint" * tag 'core-entry-2024-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: entry: Respect changes to system call number by trace_sys_enter() |
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Puranjay Mohan
|
122fdbd2a0 |
bpf: verifier: reject addr_space_cast insn without arena
The verifier allows using the addr_space_cast instruction in a program
that doesn't have an associated arena. This was caught in the form an
invalid memory access in do_misc_fixups() when while converting
addr_space_cast to a normal 32-bit mov, env->prog->aux->arena was
dereferenced to check for BPF_F_NO_USER_CONV flag.
Reject programs that include the addr_space_cast instruction but don't
have an associated arena.
root@rv-tester:~# ./reproducer
Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000030
Oops [#1]
[<ffffffff8017eeaa>] do_misc_fixups+0x43c/0x1168
[<ffffffff801936d6>] bpf_check+0xda8/0x22b6
[<ffffffff80174b32>] bpf_prog_load+0x486/0x8dc
[<ffffffff80176566>] __sys_bpf+0xbd8/0x214e
[<ffffffff80177d14>] __riscv_sys_bpf+0x22/0x2a
[<ffffffff80d2493a>] do_trap_ecall_u+0x102/0x17c
[<ffffffff80d3048c>] ret_from_exception+0x0/0x64
Fixes:
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|
Puranjay Mohan
|
f7f5d1808b |
bpf: verifier: fix addr_space_cast from as(1) to as(0)
The verifier currently converts addr_space_cast from as(1) to as(0) that
is: BPF_ALU64 | BPF_MOV | BPF_X with off=1 and imm=1
to
BPF_ALU | BPF_MOV | BPF_X with imm=1 (32-bit mov)
Because of this imm=1, the JITs that have bpf_jit_needs_zext() == true,
interpret the converted instruction as BPF_ZEXT_REG(DST) which is a
special form of mov32, used for doing explicit zero extension on dst.
These JITs will just zero extend the dst reg and will not move the src to
dst before the zext.
Fix do_misc_fixups() to set imm=0 when converting addr_space_cast to a
normal mov32.
The JITs that have bpf_jit_needs_zext() == true rely on the verifier to
emit zext instructions. Mark dst_reg as subreg when doing cast from
as(1) to as(0) so the verifier emits a zext instruction after the mov.
Fixes:
|
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Linus Torvalds
|
c150b809f7 |
RISC-V Patches for the 6.9 Merge Window
* Support for various vector-accelerated crypto routines.
* Hibernation is now enabled for portable kernel builds.
* mmap_rnd_bits_max is larger on systems with larger VAs.
* Support for fast GUP.
* Support for membarrier-based instruction cache synchronization.
* Support for the Andes hart-level interrupt controller and PMU.
* Some cleanups around unaligned access speed probing and Kconfig
settings.
* Support for ACPI LPI and CPPC.
* Various cleanus related to barriers.
* A handful of fixes.
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Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- Support for various vector-accelerated crypto routines
- Hibernation is now enabled for portable kernel builds
- mmap_rnd_bits_max is larger on systems with larger VAs
- Support for fast GUP
- Support for membarrier-based instruction cache synchronization
- Support for the Andes hart-level interrupt controller and PMU
- Some cleanups around unaligned access speed probing and Kconfig
settings
- Support for ACPI LPI and CPPC
- Various cleanus related to barriers
- A handful of fixes
* tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits)
riscv: Fix syscall wrapper for >word-size arguments
crypto: riscv - add vector crypto accelerated AES-CBC-CTS
crypto: riscv - parallelize AES-CBC decryption
riscv: Only flush the mm icache when setting an exec pte
riscv: Use kcalloc() instead of kzalloc()
riscv/barrier: Add missing space after ','
riscv/barrier: Consolidate fence definitions
riscv/barrier: Define RISCV_FULL_BARRIER
riscv/barrier: Define __{mb,rmb,wmb}
RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
cpufreq: Move CPPC configs to common Kconfig and add RISC-V
ACPI: RISC-V: Add CPPC driver
ACPI: Enable ACPI_PROCESSOR for RISC-V
ACPI: RISC-V: Add LPI driver
cpuidle: RISC-V: Move few functions to arch/riscv
riscv: Introduce set_compat_task() in asm/compat.h
riscv: Introduce is_compat_thread() into compat.h
riscv: add compile-time test into is_compat_task()
riscv: Replace direct thread flag check with is_compat_task()
riscv: Improve arch_get_mmap_end() macro
...
|
||
Eric Biggers
|
203a6763ab |
Revert "crypto: pkcs7 - remove sha1 support"
This reverts commit
|
||
|
Linus Torvalds
|
3faae16b5a |
RTC for 6.9
Subsytem: - rtc_class is now const Drivers: - ds1511: driver cleanup, set date and time range and alarm offset limit - max31335: fix interrupt handler - pcf8523: improve suspend support -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEBqsFVZXh8s/0O5JiY6TcMGxwOjIFAmX8uCcACgkQY6TcMGxw OjI1hA//fK1Cs2eDL2E7e8bQCJtDJ+gdzVT210LwT9TCOgUV+arqLjF/i/pq8m5j CK/ukk5OLZL3v5dS7rsOZAiTg1N9Q+3SEoaTP029kRfA2SxOE2isR9W5nNAvyJC0 L4Y4YEcEMsJpluK94G1/4ult1We9vCGSlqlNknChp3BL5ELxg7T/Ea5wda2OLSRx +ZgQpB6O+LIIQucm8mgCAlucMJrAj4+qEF7HO0AeElDh+md4OvjrF8Y30vTfs82L hGazWQgu8J4Jmy4u6q00s5IhfsvwNZVYgaASv8ivB8/9qgQLktZ6HFHRSwloRXg2 o9OqcM/OR7Lw4taH/6pnVQ37UUAQ/Vy9QJy2GHza1uDzlBBjtqVz8zFqheu/rmnJ 3AX7hlowBx9fPpxmStP2Ac9WIvtepV25eOlDDSlDiS8/4T/DRJHwpRQghSTDnFJ4 fRU1HFbaj3ZKRgBzu5zJU4XvQO4X/DKxSHVMy+rVtsndWzDa8q11QZrQJAP4ZpLM /+zfar2RFnsnop1Dg9cz/hq0gWbQUMJ16qN3cFYl3jVVzC3JSld7B0+DhZdII1Lg YsCXuUQusnOTFm9GtyC6doHgmC3Dy2wentz6Vn6ynyBOR4NKjJPkI7PICdgzkIDi AJI9qSxQcT6gOSw2PAlzOcYb7AD3cOJCeg3ukt7aDl8S38RKR3w= =Is7n -----END PGP SIGNATURE----- Merge tag 'rtc-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsytem: - rtc_class is now const Drivers: - ds1511: cleanup, set date and time range and alarm offset limit - max31335: fix interrupt handler - pcf8523: improve suspend support" * tag 'rtc-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (28 commits) MAINTAINER: Include linux-arm-msm for Qualcomm RTC patches dt-bindings: rtc: zynqmp: Add support for Versal/Versal NET SoCs rtc: class: make rtc_class constant dt-bindings: rtc: abx80x: Improve checks on trickle charger constraints MAINTAINERS: adjust file entry in ARM/Mediatek RTC DRIVER rtc: nct3018y: fix possible NULL dereference rtc: max31335: fix interrupt status reg rtc: mt6397: select IRQ_DOMAIN instead of depending on it dt-bindings: rtc: abx80x: convert to yaml rtc: m41t80: Use the unified property API get the wakeup-source property dt-bindings: at91rm9260-rtt: add sam9x7 compatible dt-bindings: rtc: convert MT7622 RTC to the json-schema dt-bindings: rtc: convert MT2717 RTC to the json-schema rtc: pcf8523: add suspend handlers for alarm IRQ rtc: ds1511: set alarm offset limit rtc: ds1511: set range rtc: ds1511: drop inline/noinline hints rtc: ds1511: rename pdata rtc: ds1511: implement ds1511_rtc_read_alarm properly rtc: ds1511: remove partial alarm support ... |
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Linus Torvalds
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cba9ffdb99 |
Including fixes from CAN, netfilter, wireguard and IPsec.
Current release - regressions:
- rxrpc: fix use of page_frag_alloc_align(), it changed semantics
and we added a new caller in a different subtree
- xfrm: allow UDP encapsulation only in offload modes
Current release - new code bugs:
- tcp: fix refcnt handling in __inet_hash_connect()
- Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp
packets", conflicted with some expectations in BPF uAPI
Previous releases - regressions:
- ipv4: raw: fix sending packets from raw sockets via IPsec tunnels
- devlink: fix devlink's parallel command processing
- veth: do not manipulate GRO when using XDP
- esp: fix bad handling of pages from page_pool
Previous releases - always broken:
- report RCU QS for busy network kthreads (with Paul McK's blessing)
- tcp/rds: fix use-after-free on netns with kernel TCP reqsk
- virt: vmxnet3: fix missing reserved tailroom with XDP
Misc:
- couple of build fixes for Documentation
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from CAN, netfilter, wireguard and IPsec.
I'd like to highlight [ lowlight? - Linus ] Florian W stepping down as
a netfilter maintainer due to constant stream of bug reports. Not sure
what we can do but IIUC this is not the first such case.
Current release - regressions:
- rxrpc: fix use of page_frag_alloc_align(), it changed semantics and
we added a new caller in a different subtree
- xfrm: allow UDP encapsulation only in offload modes
Current release - new code bugs:
- tcp: fix refcnt handling in __inet_hash_connect()
- Revert "net: Re-use and set mono_delivery_time bit for userspace
tstamp packets", conflicted with some expectations in BPF uAPI
Previous releases - regressions:
- ipv4: raw: fix sending packets from raw sockets via IPsec tunnels
- devlink: fix devlink's parallel command processing
- veth: do not manipulate GRO when using XDP
- esp: fix bad handling of pages from page_pool
Previous releases - always broken:
- report RCU QS for busy network kthreads (with Paul McK's blessing)
- tcp/rds: fix use-after-free on netns with kernel TCP reqsk
- virt: vmxnet3: fix missing reserved tailroom with XDP
Misc:
- couple of build fixes for Documentation"
* tag 'net-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits)
selftests: forwarding: Fix ping failure due to short timeout
MAINTAINERS: step down as netfilter maintainer
netfilter: nf_tables: Fix a memory leak in nf_tables_updchain
net: dsa: mt7530: fix handling of all link-local frames
net: dsa: mt7530: fix link-local frames that ingress vlan filtering ports
bpf: report RCU QS in cpumap kthread
net: report RCU QS on threaded NAPI repolling
rcu: add a helper to report consolidated flavor QS
ionic: update documentation for XDP support
lib/bitmap: Fix bitmap_scatter() and bitmap_gather() kernel doc
netfilter: nf_tables: do not compare internal table flags on updates
netfilter: nft_set_pipapo: release elements in clone only from destroy path
octeontx2-af: Use separate handlers for interrupts
octeontx2-pf: Send UP messages to VF only when VF is up.
octeontx2-pf: Use default max_active works instead of one
octeontx2-pf: Wait till detach_resources msg is complete
octeontx2: Detect the mbox up or down message via register
devlink: fix port new reply cmd type
tcp: Clear req->syncookie in reqsk_alloc().
net/bnx2x: Prevent access to a freed page in page_pool
...
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||
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Linus Torvalds
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1d35aae78f |
Kbuild updates for v6.9
- Generate a list of built DTB files (arch/*/boot/dts/dtbs-list)
- Use more threads when building Debian packages in parallel
- Fix warnings shown during the RPM kernel package uninstallation
- Change OBJECT_FILES_NON_STANDARD_*.o etc. to take a relative path to
Makefile
- Support GCC's -fmin-function-alignment flag
- Fix a null pointer dereference bug in modpost
- Add the DTB support to the RPM package
- Various fixes and cleanups in Kconfig
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Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Generate a list of built DTB files (arch/*/boot/dts/dtbs-list)
- Use more threads when building Debian packages in parallel
- Fix warnings shown during the RPM kernel package uninstallation
- Change OBJECT_FILES_NON_STANDARD_*.o etc. to take a relative path to
Makefile
- Support GCC's -fmin-function-alignment flag
- Fix a null pointer dereference bug in modpost
- Add the DTB support to the RPM package
- Various fixes and cleanups in Kconfig
* tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (67 commits)
kconfig: tests: test dependency after shuffling choices
kconfig: tests: add a test for randconfig with dependent choices
kconfig: tests: support KCONFIG_SEED for the randconfig runner
kbuild: rpm-pkg: add dtb files in kernel rpm
kconfig: remove unneeded menu_is_visible() call in conf_write_defconfig()
kconfig: check prompt for choice while parsing
kconfig: lxdialog: remove unused dialog colors
kconfig: lxdialog: fix button color for blackbg theme
modpost: fix null pointer dereference
kbuild: remove GCC's default -Wpacked-bitfield-compat flag
kbuild: unexport abs_srctree and abs_objtree
kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1
kconfig: remove named choice support
kconfig: use linked list in get_symbol_str() to iterate over menus
kconfig: link menus to a symbol
kbuild: fix inconsistent indentation in top Makefile
kbuild: Use -fmin-function-alignment when available
alpha: merge two entries for CONFIG_ALPHA_GAMMA
alpha: merge two entries for CONFIG_ALPHA_EV4
kbuild: change DTC_FLAGS_<basetarget>.o to take the path relative to $(obj)
...
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