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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Two small fixes, one of which was being worked around in selftests"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Retry page fault if MMU reload is pending and root has no sp
KVM: selftests: vmx_pmu_msrs_test: Drop tests mangling guest visible CPUIDs
KVM: x86: Drop guest CPUID check for host initiated writes to MSR_IA32_PERF_CAPABILITIES
Host initiated writes to MSR_IA32_PERF_CAPABILITIES should not depend
on guest visible CPUIDs and (incorrect) KVM logic implementing it is
about to change. Also, KVM_SET_CPUID{,2} after KVM_RUN is now forbidden
and causes test to fail.
Reported-by: kernel test robot <oliver.sang@intel.com>
Fixes: feb627e8d6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211216165213.338923-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The fixed commit attempts to get the output file descriptor even if the
file was never opened e.g.
$ perf record uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (7 samples) ]
$ perf inject -i perf.data --vm-time-correlation=dry-run
Segmentation fault (core dumped)
$ gdb --quiet perf
Reading symbols from perf...
(gdb) r inject -i perf.data --vm-time-correlation=dry-run
Starting program: /home/ahunter/bin/perf inject -i perf.data --vm-time-correlation=dry-run
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
__GI___fileno (fp=0x0) at fileno.c:35
35 fileno.c: No such file or directory.
(gdb) bt
#0 __GI___fileno (fp=0x0) at fileno.c:35
#1 0x00005621e48dd987 in perf_data__fd (data=0x7fff4c68bd08) at util/data.h:72
#2 perf_data__fd (data=0x7fff4c68bd08) at util/data.h:69
#3 cmd_inject (argc=<optimized out>, argv=0x7fff4c69c1f0) at builtin-inject.c:1017
#4 0x00005621e4936783 in run_builtin (p=0x5621e4ee6878 <commands+600>, argc=4, argv=0x7fff4c69c1f0) at perf.c:313
#5 0x00005621e4897d5c in handle_internal_command (argv=<optimized out>, argc=<optimized out>) at perf.c:365
#6 run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:409
#7 main (argc=4, argv=0x7fff4c69c1f0) at perf.c:539
(gdb)
Fixes: 0ae0389362 ("perf tools: Pass a fd to perf_file_header__read_pipe()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211213084829.114772-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The fixed commit attempts to close inject.output even if it was never
opened e.g.
$ perf record uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (7 samples) ]
$ perf inject -i perf.data --vm-time-correlation=dry-run
Segmentation fault (core dumped)
$ gdb --quiet perf
Reading symbols from perf...
(gdb) r inject -i perf.data --vm-time-correlation=dry-run
Starting program: /home/ahunter/bin/perf inject -i perf.data --vm-time-correlation=dry-run
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
48 iofclose.c: No such file or directory.
(gdb) bt
#0 0x00007eff8afeef5b in _IO_new_fclose (fp=0x0) at iofclose.c:48
#1 0x0000557fc7b74f92 in perf_data__close (data=data@entry=0x7ffcdafa6578) at util/data.c:376
#2 0x0000557fc7a6b807 in cmd_inject (argc=<optimized out>, argv=<optimized out>) at builtin-inject.c:1085
#3 0x0000557fc7ac4783 in run_builtin (p=0x557fc8074878 <commands+600>, argc=4, argv=0x7ffcdafb6a60) at perf.c:313
#4 0x0000557fc7a25d5c in handle_internal_command (argv=<optimized out>, argc=<optimized out>) at perf.c:365
#5 run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:409
#6 main (argc=4, argv=0x7ffcdafb6a60) at perf.c:539
(gdb)
Fixes: 02e6246f53 ("perf inject: Close inject.output on exit")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211213084829.114772-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The hashmap__new() function may return ERR_PTR(-ENOMEM) when malloc()
fails, add IS_ERR() checking for ctx->ids.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211212062504.25841-1-linmq006@gmail.com
[ s/kfree()/free()/ and add missing linux/err.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Current release - regressions:
- dpaa2-eth: fix buffer overrun when reporting ethtool statistics
Current release - new code bugs:
- bpf: fix incorrect state pruning for <8B spill/fill
- iavf:
- add missing unlocks in iavf_watchdog_task()
- do not override the adapter state in the watchdog task (again)
- mlxsw: spectrum_router: consolidate MAC profiles when possible
Previous releases - regressions:
- mac80211, fix:
- rate control, avoid driver crash for retransmitted frames
- regression in SSN handling of addba tx
- a memory leak where sta_info is not freed
- marking TX-during-stop for TX in in_reconfig, prevent stall
- cfg80211: acquire wiphy mutex on regulatory work
- wifi drivers: fix build regressions and LED config dependency
- virtio_net: fix rx_drops stat for small pkts
- dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()
Previous releases - always broken:
- bpf, fix:
- kernel address leakage in atomic fetch
- kernel address leakage in atomic cmpxchg's r0 aux reg
- signed bounds propagation after mov32
- extable fixup offset
- extable address check
- mac80211:
- fix the size used for building probe request
- send ADDBA requests using the tid/queue of the aggregation
session
- agg-tx: don't schedule_and_wake_txq() under sta->lock,
avoid deadlocks
- validate extended element ID is present
- mptcp:
- never allow the PM to close a listener subflow (null-defer)
- clear 'kern' flag from fallback sockets, prevent crash
- fix deadlock in __mptcp_push_pending()
- inet_diag: fix kernel-infoleak for UDP sockets
- xsk: do not sleep in poll() when need_wakeup set
- smc: avoid very long waits in smc_release()
- sch_ets: don't remove idle classes from the round-robin list
- netdevsim:
- zero-initialize memory for bpf map's value, prevent info leak
- don't let user space overwrite read only (max) ethtool parms
- ixgbe: set X550 MDIO speed before talking to PHY
- stmmac:
- fix null-deref in flower deletion w/ VLAN prio Rx steering
- dwmac-rk: fix oob read in rk_gmac_setup
- ice: time stamping fixes
- systemport: add global locking for descriptor life cycle
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from mac80211, wifi, bpf.
Relatively large batches of fixes from BPF and the WiFi stack, calm in
general networking.
Current release - regressions:
- dpaa2-eth: fix buffer overrun when reporting ethtool statistics
Current release - new code bugs:
- bpf: fix incorrect state pruning for <8B spill/fill
- iavf:
- add missing unlocks in iavf_watchdog_task()
- do not override the adapter state in the watchdog task (again)
- mlxsw: spectrum_router: consolidate MAC profiles when possible
Previous releases - regressions:
- mac80211 fixes:
- rate control, avoid driver crash for retransmitted frames
- regression in SSN handling of addba tx
- a memory leak where sta_info is not freed
- marking TX-during-stop for TX in in_reconfig, prevent stall
- cfg80211: acquire wiphy mutex on regulatory work
- wifi drivers: fix build regressions and LED config dependency
- virtio_net: fix rx_drops stat for small pkts
- dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()
Previous releases - always broken:
- bpf fixes:
- kernel address leakage in atomic fetch
- kernel address leakage in atomic cmpxchg's r0 aux reg
- signed bounds propagation after mov32
- extable fixup offset
- extable address check
- mac80211:
- fix the size used for building probe request
- send ADDBA requests using the tid/queue of the aggregation
session
- agg-tx: don't schedule_and_wake_txq() under sta->lock, avoid
deadlocks
- validate extended element ID is present
- mptcp:
- never allow the PM to close a listener subflow (null-defer)
- clear 'kern' flag from fallback sockets, prevent crash
- fix deadlock in __mptcp_push_pending()
- inet_diag: fix kernel-infoleak for UDP sockets
- xsk: do not sleep in poll() when need_wakeup set
- smc: avoid very long waits in smc_release()
- sch_ets: don't remove idle classes from the round-robin list
- netdevsim:
- zero-initialize memory for bpf map's value, prevent info leak
- don't let user space overwrite read only (max) ethtool parms
- ixgbe: set X550 MDIO speed before talking to PHY
- stmmac:
- fix null-deref in flower deletion w/ VLAN prio Rx steering
- dwmac-rk: fix oob read in rk_gmac_setup
- ice: time stamping fixes
- systemport: add global locking for descriptor life cycle"
* tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (89 commits)
bpf, selftests: Fix racing issue in btf_skc_cls_ingress test
selftest/bpf: Add a test that reads various addresses.
bpf: Fix extable address check.
bpf: Fix extable fixup offset.
bpf, selftests: Add test case trying to taint map value pointer
bpf: Make 32->64 bounds propagation slightly more robust
bpf: Fix signed bounds propagation after mov32
sit: do not call ipip6_dev_free() from sit_init_net()
net: systemport: Add global locking for descriptor lifecycle
net/smc: Prevent smc_release() from long blocking
net: Fix double 0x prefix print in SKB dump
virtio_net: fix rx_drops stat for small pkts
dsa: mv88e6xxx: fix debug print for SPEED_UNFORCED
sfc_ef100: potential dereference of null pointer
net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
net: usb: lan78xx: add Allied Telesis AT29M2-AF
net/packet: rx_owner_map depends on pg_vec
netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc
dpaa2-eth: fix ethtool statistics
ixgbe: set X550 MDIO speed before talking to PHY
...
Daniel Borkmann says:
====================
pull-request: bpf 2021-12-16
We've added 15 non-merge commits during the last 7 day(s) which contain
a total of 12 files changed, 434 insertions(+), 30 deletions(-).
The main changes are:
1) Fix incorrect verifier state pruning behavior for <8B register spill/fill,
from Paul Chaignon.
2) Fix x86-64 JIT's extable handling for fentry/fexit when return pointer
is an ERR_PTR(), from Alexei Starovoitov.
3) Fix 3 different possibilities that BPF verifier missed where unprivileged
could leak kernel addresses, from Daniel Borkmann.
4) Fix xsk's poll behavior under need_wakeup flag, from Magnus Karlsson.
5) Fix an oob-write in test_verifier due to a missed MAX_NR_MAPS bump,
from Kumar Kartikeya Dwivedi.
6) Fix a race in test_btf_skc_cls_ingress selftest, from Martin KaFai Lau.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf, selftests: Fix racing issue in btf_skc_cls_ingress test
selftest/bpf: Add a test that reads various addresses.
bpf: Fix extable address check.
bpf: Fix extable fixup offset.
bpf, selftests: Add test case trying to taint map value pointer
bpf: Make 32->64 bounds propagation slightly more robust
bpf: Fix signed bounds propagation after mov32
bpf, selftests: Update test case for atomic cmpxchg on r0 with pointer
bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg
bpf, selftests: Add test case for atomic fetch on spilled pointer
bpf: Fix kernel address leakage in atomic fetch
selftests/bpf: Fix OOB write in test_verifier
xsk: Do not sleep in poll() when need_wakeup set
selftests/bpf: Tests for state pruning with u32 spill/fill
bpf: Fix incorrect state pruning for <8B spill/fill
====================
Link: https://lore.kernel.org/r/20211216210005.13815-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The libbpf CI reported occasional failure in btf_skc_cls_ingress:
test_syncookie:FAIL:Unexpected syncookie states gen_cookie:80326634 recv_cookie:0
bpf prog error at line 97
"error at line 97" means the bpf prog cannot find the listening socket
when the final ack is received. It then skipped processing
the syncookie in the final ack which then led to "recv_cookie:0".
The problem is the userspace program did not do accept() and went
ahead to close(listen_fd) before the kernel (and the bpf prog) had
a chance to process the final ack.
The fix is to add accept() call so that the userspace will wait for
the kernel to finish processing the final ack first before close()-ing
everything.
Fixes: 9a856cae22 ("bpf: selftest: Add test_btf_skc_cls_ingress")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211216191630.466151-1-kafai@fb.com
Add a function to bpf_testmod that returns invalid kernel and user addresses.
Then attach an fexit program to that function that tries to read
memory through these addresses.
This logic checks that bpf_probe_read_kernel and BPF_PROBE_MEM logic is sane.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Fix up unprivileged test case results for 'Dest pointer in r0' verifier tests
given they now need to reject R0 containing a pointer value, and add a couple
of new related ones with 32bit cmpxchg as well.
root@foo:~/bpf/tools/testing/selftests/bpf# ./test_verifier
#0/u invalid and of negative number OK
#0/p invalid and of negative number OK
[...]
#1268/p XDP pkt read, pkt_meta' <= pkt_data, bad access 1 OK
#1269/p XDP pkt read, pkt_meta' <= pkt_data, bad access 2 OK
#1270/p XDP pkt read, pkt_data <= pkt_meta', good access OK
#1271/p XDP pkt read, pkt_data <= pkt_meta', bad access 1 OK
#1272/p XDP pkt read, pkt_data <= pkt_meta', bad access 2 OK
Summary: 1900 PASSED, 0 SKIPPED, 0 FAILED
Acked-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Test whether unprivileged would be able to leak the spilled pointer either
by exporting the returned value from the atomic{32,64} operation or by reading
and exporting the value from the stack after the atomic operation took place.
Note that for unprivileged, the below atomic cmpxchg test case named "Dest
pointer in r0 - succeed" is failing. The reason is that in the dst memory
location (r10 -8) there is the spilled register r10:
0: R1=ctx(id=0,off=0,imm=0) R10=fp0
0: (bf) r0 = r10
1: R0_w=fp0 R1=ctx(id=0,off=0,imm=0) R10=fp0
1: (7b) *(u64 *)(r10 -8) = r0
2: R0_w=fp0 R1=ctx(id=0,off=0,imm=0) R10=fp0 fp-8_w=fp
2: (b7) r1 = 0
3: R0_w=fp0 R1_w=invP0 R10=fp0 fp-8_w=fp
3: (db) r0 = atomic64_cmpxchg((u64 *)(r10 -8), r0, r1)
4: R0_w=fp0 R1_w=invP0 R10=fp0 fp-8_w=mmmmmmmm
4: (79) r1 = *(u64 *)(r0 -8)
5: R0_w=fp0 R1_w=invP(id=0) R10=fp0 fp-8_w=mmmmmmmm
5: (b7) r0 = 0
6: R0_w=invP0 R1_w=invP(id=0) R10=fp0 fp-8_w=mmmmmmmm
6: (95) exit
However, allowing this case for unprivileged is a bit useless given an
update with a new pointer will fail anyway:
0: R1=ctx(id=0,off=0,imm=0) R10=fp0
0: (bf) r0 = r10
1: R0_w=fp0 R1=ctx(id=0,off=0,imm=0) R10=fp0
1: (7b) *(u64 *)(r10 -8) = r0
2: R0_w=fp0 R1=ctx(id=0,off=0,imm=0) R10=fp0 fp-8_w=fp
2: (db) r0 = atomic64_cmpxchg((u64 *)(r10 -8), r0, r10)
R10 leaks addr into mem
Acked-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The commit referenced below added fixup_map_timer support (to create a
BPF map containing timers), but failed to increase the size of the
map_fds array, leading to out of bounds write. Fix this by changing
MAX_NR_MAPS to 22.
Fixes: e60e6962c5 ("selftests/bpf: Add tests for restricted helpers")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211214014800.78762-1-memxor@gmail.com
Add a test case to cover the bug fixed by the previous patch.
Edit the MAC address of one netdev so that it matches the MAC address of
the second netdev. Verify that the two MAC profiles were consolidated by
testing that the MAC profiles occupancy decreased by one.
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The recent GRE selftests defined NUM_NETIFS=10. If the users copy
forwarding.config.sample to forwarding.config directly, they will get
error "Command line is not complete" when run the GRE tests, because
create_netif_veth() failed with no interface name defined.
Fix it by extending the NETIFS with p9 and p10.
Fixes: 2800f24854 ("selftests: forwarding: Test multipath hashing on inner IP pkts for GRE tunnel")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tiny fix. Option -u ("use udp") does not take an argument.
It can cause the next argument to silently be ignored.
Fixes: 5ebfb4cc30 ("selftests/net: toeplitz test")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
IPv6 allows binding a socket to a device then binding to an address
not on the device (__inet6_bind -> ipv6_chk_addr with strict flag
not set). Update the bind tests to reflect legacy behavior.
Fixes: 34d0302ab8 ("selftests: Add ipv6 address bind tests to fcnal-test")
Reported-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit referenced below added negative socket bind tests for VRF. The
socket binds should fail since the address to bind to is in a VRF yet
the socket is not bound to the VRF or a device within it. Update the
expected return code to check for 1 (bind failure) so the test passes
when the bind fails as expected. Add a 'show_hint' comment to explain
why the bind is expected to fail.
Fixes: 75b2b2b3db ("selftests: Add ipv4 address bind tests to fcnal-test")
Reported-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit referenced below added configuration in the default VRF that
duplicates a VRF to check MD5 passwords are properly used and fail
when expected. That config should not be added all the time as it
can cause tests to pass that should not (by matching on default VRF
setup when it should not). Move the duplicate setup to a function
that is only called for the MD5 tests and add a cleanup function
to remove it after the MD5 tests.
Fixes: 5cad8bce26 ("fcnal-test: Add TCP MD5 tests for VRF")
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If any sub-test in this icmp_redirect.sh is failing but not expected
to fail. The script will complain:
./icmp_redirect.sh: line 72: [: 1: unary operator expected
This is because when the sub-test is not expected to fail, we won't
pass any value for the xfail local variable in log_test() and thus
it's empty. Fix this by passing 0 as the 4th variable to log_test()
for non-xfail cases.
v2: added fixes tag
Fixes: 0a36a75c68 ("selftests: icmp_redirect: support expected failures")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Prevent out-of-bounds access to per sample registers.
- Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
- Intel PT fixes, half of those are one-liners:
- Fix some PGE (packet generation enable/control flow packets) usage.
- Fix sync state when a PSB (synchronization) packet is found.
- Fix intel_pt_fup_event() assumptions about setting state type.
- Fix state setting when receiving overflow (OVF) packet.
- Fix next 'err' value, walking trace.
- Fix missing 'instruction' events with 'q' option.
- Fix error timestamp setting on the decoder error path.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Prevent out-of-bounds access to per sample registers.
- Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
- Intel PT fixes, half of those are one-liners:
- Fix some PGE (packet generation enable/control flow packets) usage.
- Fix sync state when a PSB (synchronization) packet is found.
- Fix intel_pt_fup_event() assumptions about setting state type.
- Fix state setting when receiving overflow (OVF) packet.
- Fix next 'err' value, walking trace.
- Fix missing 'instruction' events with 'q' option.
- Fix error timestamp setting on the decoder error path.
* tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf python: Fix NULL vs IS_ERR_OR_NULL() checking
perf intel-pt: Fix error timestamp setting on the decoder error path
perf intel-pt: Fix missing 'instruction' events with 'q' option
perf intel-pt: Fix next 'err' value, walking trace
perf intel-pt: Fix state setting when receiving overflow (OVF) packet
perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
perf tools: Prevent out-of-bounds access to registers
Merge misc fixes from Andrew Morton:
"21 patches.
Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
(mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
hugetlbfs: fix issue of preallocation of gigantic pages can't work
mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
mm/slub: fix endianness bug for alloc/free_traces attributes
selftests/damon: split test cases
selftests/damon: test debugfs file reads/writes with huge count
selftests/damon: test wrong DAMOS condition ranges input
selftests/damon: test DAMON enabling with empty target_ids case
selftests/damon: skip test if DAMON is running
mm/damon/vaddr-test: remove unnecessary variables
mm/damon/vaddr-test: split a test function having >1024 bytes frame size
mm/damon/vaddr: remove an unnecessary warning message
mm/damon/core: remove unnecessary error messages
mm/damon/dbgfs: remove an unnecessary error message
mm/damon/core: use better timer mechanisms selection threshold
mm/damon/core: fix fake load reports due to uninterruptible sleeps
timers: implement usleep_idle_range()
filemap: remove PageHWPoison check from next_uptodate_page()
mailmap: update email address for Guo Ren
MAINTAINERS: update kdump maintainers
...
The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM). Use
IS_ERR_OR_NULL to check tp_format.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
An error timestamp shows the last known timestamp for the queue, but this
is not updated on the error path. Fix by setting it.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
FUP packets contain IP information, which makes them also an 'instruction'
event in 'hop' mode i.e. the itrace 'q' option. That wasn't happening, so
restructure the logic so that FUP events are added along with appropriate
'instruction' and 'branch' events.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
An overflow (OVF packet) is treated as an error because it represents a
loss of trace data, but there is no loss of synchronization, so the packet
state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC.
To support that, some additional variables must be reset, and the FUP
packet that may follow OVF is treated as an FUP event.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
intel_pt_fup_event() assumes it can overwrite the state type if there has
been an FUP event, but this is an unnecessary and unexpected constraint on
callers.
Fix by touching only the state type flags that are affected by an FUP
event.
Fixes: a472e65fc4 ("perf intel-pt: Add decoder support for ptwrite and power event packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored. However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Packet generation enable (PGE) refers to whether control flow (COFI)
packets are being produced.
PGE may be false even when branch-tracing is enabled, due to being
out-of-context, or outside a filter address range. Fix some missing PGE
usage.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Fixes: 839598176b ("perf intel-pt: Allow decoding with branch tracing disabled")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The size of the cache of register values is arch-dependant
(PERF_REGS_MAX). This has the potential of causing an out-of-bounds
access in the function "perf_reg_value" if the local architecture
contains less registers than the one the perf.data file was recorded on.
Since the maximum number of registers is bound by the bitmask "u64
cache_mask", and the size of the cache when running under x86 systems is
64 already, fix the size to 64 and add a range-check to the function
"perf_reg_value" to prevent out-of-bounds access.
Reported-by: Alexandre Truong <alexandre.truong@arm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20211201123334.679131-2-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently, the single test program, debugfs.sh, contains all test cases
for DAMON. When one of the cases fails, finding which case is failed
from the test log is not so easy, and all remaining tests will be
skipped. To improve the situation, this commit splits the single
program into small test programs having their own names.
Link: https://lkml.kernel.org/r/20211201150440.1088-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DAMON debugfs interface users were able to trigger warning by writing
some files with arbitrarily large 'count' parameter. The issue is fixed
with commit db7a347b26 ("mm/damon/dbgfs: use '__GFP_NOWARN' for
user-specified size buffer allocation"). This commit adds a test case
for the issue in DAMON selftests to avoid future regressions.
Link: https://lkml.kernel.org/r/20211201150440.1088-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83dd ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on"). To avoid future
regression, this commit adds a test case for that in DAMON selftests.
Link: https://lkml.kernel.org/r/20211201150440.1088-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Testing the DAMON debugfs files while DAMON is running makes no sense,
as any write to the debugfs files will fail. This commit makes the test
be skipped in this case.
Link: https://lkml.kernel.org/r/20211201150440.1088-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Create the output directory for the ACPI tools during build if it has
not been present before and prevent the compilation from failing in
that case (Chen Yu).
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Merge tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Create the output directory for the ACPI tools during build if it has
not been present before and prevent the compilation from failing in
that case (Chen Yu)"
* tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: tools: Fix compilation when output directory is not present
* Logic bugs in CR0 writes and Hyper-V hypercalls
* Don't use Enlightened MSR Bitmap for L3
* Remove user-triggerable WARN
Plus a few selftest fixes and a regression test for the
user-triggerable WARN.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"More x86 fixes:
- Logic bugs in CR0 writes and Hyper-V hypercalls
- Don't use Enlightened MSR Bitmap for L3
- Remove user-triggerable WARN
Plus a few selftest fixes and a regression test for the
user-triggerable WARN"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O
KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit
KVM: X86: Raise #GP when clearing CR0_PG in 64 bit mode
selftests: KVM: avoid failures due to reserved HyperTransport region
KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req
KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall
KVM: x86: selftests: svm_int_ctl_test: fix intercept calculation
KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
This patch adds tests for the verifier's tracking for spilled, <8B
registers. The first two test cases ensure the verifier doesn't
incorrectly prune states in case of <8B spill/fills. The last one simply
checks that a filled u64 register is marked unknown if the register
spilled in the same slack slot was less than 8B.
The map value access at the end of the first program is only incorrect
for the path R6=32. If the precision bit for register R8 isn't
backtracked through the u32 spill/fill, the R6=32 path is pruned at
instruction 9 and the program is incorrectly accepted. The second
program is a variation of the same with u32 spills and a u64 fill.
The additional instructions to introduce the first pruning point may be
a bit fragile as they depend on the heuristics for pruning points in the
verifier (currently at least 8 instructions and 2 jumps). If the
heuristics are changed, the pruning point may move (e.g., to the
subsequent jump) or disappear, which would cause the test to always pass.
Signed-off-by: Paul Chaignon <paul@isovalent.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add an x86 selftest to verify that KVM doesn't WARN or otherwise explode
if userspace modifies RCX during a userspace exit to handle string I/O.
This is a regression test for a user-triggerable WARN introduced by
commit 3b27de2718 ("KVM: x86: split the two parts of emulator_pio_in").
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211025201311.1881846-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
AMD proceessors define an address range that is reserved by HyperTransport
and causes a failure if used for guest physical addresses. Avoid
selftests failures by reserving those guest physical addresses; the
rules are:
- On parts with <40 bits, its fully hidden from software.
- Before Fam17h, it was always 12G just below 1T, even if there was more
RAM above this location. In this case we just not use any RAM above 1T.
- On Fam17h and later, it is variable based on SME, and is either just
below 2^48 (no encryption) or 2^43 (encryption).
Fixes: ef4c9f4f65 ("KVM: selftests: Fix 32-bit truncation of vm_get_max_gfn()")
Cc: stable@vger.kernel.org
Cc: David Matlack <dmatlack@google.com>
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210805105423.412878-1-pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
./fcnal-test.sh -v -t ipv6_ping
TEST: ping out, VRF bind - ns-B IPv6 LLA [FAIL]
TEST: ping out, VRF bind - multicast IP [FAIL]
ping6 is failing as it should.
COMMAND: ip netns exec ns-A /bin/ping6 -c1 -w1 fe80::7c4c:bcff:fe66:a63a%red
strace of ping6 shows it is failing with '1',
so change the expected rc from 2 to 1.
Fixes: c0644e71df ("selftests: Add ipv6 ping tests to fcnal-test")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jie2x Zhou <jie2x.zhou@intel.com>
Link: https://lore.kernel.org/r/20211209020230.37270-1-jie2x.zhou@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- bpf, sockmap: re-evaluate proto ops when psock is removed from sockmap
Current release - new code bugs:
- bpf: fix bpf_check_mod_kfunc_call for built-in modules
- ice: fixes for TC classifier offloads
- vrf: don't run conntrack on vrf with !dflt qdisc
Previous releases - regressions:
- bpf: fix the off-by-two error in range markings
- seg6: fix the iif in the IPv6 socket control block
- devlink: fix netns refcount leak in devlink_nl_cmd_reload()
- dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's"
- dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports
Previous releases - always broken:
- ethtool: do not perform operations on net devices being unregistered
- udp: use datalen to cap max gso segments
- ice: fix races in stats collection
- fec: only clear interrupt of handling queue in fec_enet_rx_queue()
- m_can: pci: fix incorrect reference clock rate
- m_can: disable and ignore ELO interrupt
- mvpp2: fix XDP rx queues registering
Misc:
- treewide: add missing includes masked by cgroup -> bpf.h dependency
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, can and netfilter.
Current release - regressions:
- bpf, sockmap: re-evaluate proto ops when psock is removed from
sockmap
Current release - new code bugs:
- bpf: fix bpf_check_mod_kfunc_call for built-in modules
- ice: fixes for TC classifier offloads
- vrf: don't run conntrack on vrf with !dflt qdisc
Previous releases - regressions:
- bpf: fix the off-by-two error in range markings
- seg6: fix the iif in the IPv6 socket control block
- devlink: fix netns refcount leak in devlink_nl_cmd_reload()
- dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's"
- dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports
Previous releases - always broken:
- ethtool: do not perform operations on net devices being
unregistered
- udp: use datalen to cap max gso segments
- ice: fix races in stats collection
- fec: only clear interrupt of handling queue in fec_enet_rx_queue()
- m_can: pci: fix incorrect reference clock rate
- m_can: disable and ignore ELO interrupt
- mvpp2: fix XDP rx queues registering
Misc:
- treewide: add missing includes masked by cgroup -> bpf.h
dependency"
* tag 'net-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (82 commits)
net: dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports
net: wwan: iosm: fixes unable to send AT command during mbim tx
net: wwan: iosm: fixes net interface nonfunctional after fw flash
net: wwan: iosm: fixes unnecessary doorbell send
net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering
MAINTAINERS: s390/net: remove myself as maintainer
net/sched: fq_pie: prevent dismantle issue
net: mana: Fix memory leak in mana_hwc_create_wq
seg6: fix the iif in the IPv6 socket control block
nfp: Fix memory leak in nfp_cpp_area_cache_add()
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
nfc: fix segfault in nfc_genl_dump_devices_done
udp: using datalen to cap max gso segments
net: dsa: mv88e6xxx: error handling for serdes_power functions
can: kvaser_usb: get CAN clock frequency from device
can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter
net: mvpp2: fix XDP rx queues registering
vmxnet3: fix minimum vectors alloc issue
net, neigh: clear whole pneigh_entry at alloc time
net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's"
...
INTERCEPT_x are bit positions, but the code was using the raw value of
INTERCEPT_VINTR (4) instead of BIT(INTERCEPT_VINTR).
This resulted in masking of bit 2 - that is, SMI instead of VINTR.
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Message-Id: <49b9571d25588870db5380b0be1a41df4bbaaf93.1638486479.git.maciej.szmigiero@oracle.com>
Clean up remaining headers that are specific to liblockdep but lived in
the shared header directory. These are all unused after the liblockdep
code was removed in commit 7246f4dcac ("tools/lib/lockdep: drop
liblockdep").
Note that there are still headers that were originally created for
liblockdep, that still have liblockdep references, but they are used by
other tools/ code at this point.
Signed-off-by: Sasha Levin <sashal@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Fix bogus compilter warning in nfnetlink_queue, from Florian Westphal.
2) Don't run conntrack on vrf with !dflt qdisc, from Nicolas Dichtel.
3) Fix nft_pipapo bucket load in AVX2 lookup routine for six 8-bit
groups, from Stefano Brivio.
4) Break rule evaluation on malformed TCP options.
5) Use socat instead of nc in selftests/netfilter/nft_zones_many.sh,
also from Florian
6) Fix KCSAN data-race in conntrack timeout updates, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf:
netfilter: conntrack: annotate data-races around ct->timeout
selftests: netfilter: switch zone stress to socat
netfilter: nft_exthdr: break evaluation if setting TCP option fails
selftests: netfilter: Add correctness test for mac,net set type
nft_set_pipapo: Fix bucket load in AVX2 lookup routine for six 8-bit groups
vrf: don't run conntrack on vrf with !dflt qdisc
netfilter: nfnetlink_queue: silence bogus compiler warning
====================
Link: https://lore.kernel.org/r/20211209000847.102598-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Daniel Borkmann says:
====================
bpf 2021-12-08
We've added 12 non-merge commits during the last 22 day(s) which contain
a total of 29 files changed, 659 insertions(+), 80 deletions(-).
The main changes are:
1) Fix an off-by-two error in packet range markings and also add a batch of
new tests for coverage of these corner cases, from Maxim Mikityanskiy.
2) Fix a compilation issue on MIPS JIT for R10000 CPUs, from Johan Almbladh.
3) Fix two functional regressions and a build warning related to BTF kfunc
for modules, from Kumar Kartikeya Dwivedi.
4) Fix outdated code and docs regarding BPF's migrate_disable() use on non-
PREEMPT_RT kernels, from Sebastian Andrzej Siewior.
5) Add missing includes in order to be able to detangle cgroup vs bpf header
dependencies, from Jakub Kicinski.
6) Fix regression in BPF sockmap tests caused by missing detachment of progs
from sockets when they are removed from the map, from John Fastabend.
7) Fix a missing "no previous prototype" warning in x86 JIT caused by BPF
dispatcher, from Björn Töpel.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Add selftests to cover packet access corner cases
bpf: Fix the off-by-two error in range markings
treewide: Add missing includes masked by cgroup -> bpf dependency
tools/resolve_btfids: Skip unresolved symbol warning for empty BTF sets
bpf: Fix bpf_check_mod_kfunc_call for built-in modules
bpf: Make CONFIG_DEBUG_INFO_BTF depend upon CONFIG_BPF_SYSCALL
mips, bpf: Fix reference to non-existing Kconfig symbol
bpf: Make sure bpf_disable_instrumentation() is safe vs preemption.
Documentation/locking/locktypes: Update migrate_disable() bits.
bpf, sockmap: Re-evaluate proto ops when psock is removed from sockmap
bpf, sockmap: Attach map progs to psock early for feature probes
bpf, x86: Fix "no previous prototype" warning
====================
Link: https://lore.kernel.org/r/20211208155125.11826-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit adds BPF verifier selftests that cover all corner cases by
packet boundary checks. Specifically, 8-byte packet reads are tested at
the beginning of data and at the beginning of data_meta, using all kinds
of boundary checks (all comparison operators: <, >, <=, >=; both
permutations of operands: data + length compared to end, end compared to
data + length). For each case there are three tests:
1. Length is just enough for an 8-byte read. Length is either 7 or 8,
depending on the comparison.
2. Length is increased by 1 - should still pass the verifier. These
cases are useful, because they failed before commit 2fa7d94afc
("bpf: Fix the off-by-two error in range markings").
3. Length is decreased by 1 - should be rejected by the verifier.
Some existing tests are just renamed to avoid duplication.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211207081521.41923-1-maximmi@nvidia.com
Compiling the ACPI tools when output directory parameter is specified,
but the output directory is not present, triggers the following error:
make O=/data/test/tmp/ -C tools/power/acpi/
make: Entering directory '/data/src/kernel/linux/tools/power/acpi'
DESCEND tools/acpidbg
make[1]: Entering directory '/data/src/kernel/linux/tools/power/acpi/tools/acpidbg'
MKDIR include
CP include
CC tools/acpidbg/acpidbg.o
Assembler messages:
Fatal error: can't create /data/test/tmp/tools/power/acpi/tools/acpidbg/acpidbg.o: No such file or directory
make[1]: *** [../../Makefile.rules:24: /data/test/tmp/tools/power/acpi/tools/acpidbg/acpidbg.o] Error 1
make[1]: Leaving directory '/data/src/kernel/linux/tools/power/acpi/tools/acpidbg'
make: *** [Makefile:18: acpidbg] Error 2
make: Leaving directory '/data/src/kernel/linux/tools/power/acpi'
which occurs because the output directory has not been created yet.
Fix this issue by creating the output directory before compiling.
Reported-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: New subject, changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add tests for TLSv1.2 and TLSv1.3 with AES256-GCM cipher
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
