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linux/arch/x86/kernel
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Keith Busch 01d5ccd341 x86/apic: Handle zero vector gracefully in clear_vector_irq() 
commit 1bdb897039 upstream.

If x86_vector_alloc_irq() fails x86_vector_free_irqs() is invoked to cleanup
the already allocated vectors. This subsequently calls clear_vector_irq().

The failed irq has no vector assigned, which triggers the BUG_ON(!vector) in
clear_vector_irq().

We cannot suppress the call to x86_vector_free_irqs() for the failed
interrupt, because the other data related to this irq must be cleaned up as
well. So calling clear_vector_irq() with vector == 0 is legitimate.

Remove the BUG_ON and return if vector is zero,

[ tglx: Massaged changelog ]

Fixes: b5dc8e6c21 "x86/irq: Use hierarchical irqdomain to manage CPU interrupt vectors"
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04 14:48:49 -07:00
..
acpi
PM / sleep / x86: Fix crash on graph trace through x86 suspend
2016-03-09 15:34:52 -08:00
apic
x86/apic: Handle zero vector gracefully in clear_vector_irq()
2016-05-04 14:48:49 -07:00
cpu
x86/mce: Avoid using object after free in genpool
2016-05-04 14:48:40 -07:00
fpu
x86/fpu: Fix get_xsave_addr() behavior under virtualization
2015-11-12 09:34:58 +01:00
kprobes
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-14 14:37:47 -07:00
.gitignore
…
alternative.c
x86/alternatives: Make optimize_nops() interrupt safe and synced
2015-09-03 21:27:47 +02:00
amd_gart_64.c
…
amd_nb.c
x86/gart: Check for GART support before accessing GART registers
2015-05-06 11:15:53 +02:00
apb_timer.c
x86/asm/tsc: Rename native_read_tsc() to rdtsc()
2015-07-06 15:23:28 +02:00
aperture_64.c
x86/gart: Check for GART support before accessing GART registers
2015-05-06 11:15:53 +02:00
apm_32.c
apm32: Fix cputime == jiffies assumption
2015-07-29 15:44:58 +02:00
asm-offsets_32.c
x86: Remove unused TI_cpu
2015-05-05 20:48:02 +02:00
asm-offsets_64.c
x86/asm/entry: (Re-)rename __NR_entry_INT80_compat_max to __NR_syscall_compat_max
2015-06-08 23:43:38 +02:00
asm-offsets.c
Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-11-03 21:05:40 -08:00
audit_64.c
x86: hook up execveat system call
2014-12-13 12:42:51 -08:00
bootflag.c
x86: don't use module_init for non-modular core bootflag code
2015-06-16 14:12:34 -04:00
check.c
Merge tag 'v4.2-rc8' into x86/mm, before applying new changes
2015-08-25 09:59:19 +02:00
cpuid.c
x86: Drop bogus __ref / __refdata annotations
2015-07-20 18:57:20 +02:00
crash_dump_32.c
…
crash_dump_64.c
…
crash.c
x86/kexec: Remove obsolete 'in_crash_kexec' flag
2015-10-12 09:43:11 +02:00
devicetree.c
Merge tag 'module_init-device_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2015-07-02 10:30:48 -07:00
doublefault.c
…
dumpstack_32.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
dumpstack_64.c
x86/kernel: Use kstack_end() in dumpstack_64.c
2015-02-23 18:37:13 +01:00
dumpstack.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
e820.c
x86/e820: Deinline e820_type_to_string, save 126 bytes
2015-09-30 21:54:40 +02:00
early_printk.c
x86/early_printk: Set __iomem address space for IO
2015-10-13 21:45:56 +02:00
early-quirks.c
timers/x86/hpet: Type adjustments
2015-10-21 11:17:32 +02:00
espfix_64.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
ftrace.c
ftrace: Calculate the correct dyn_ftrace number to report to the userspace
2015-10-22 15:44:24 -04:00
head32.c
x86: Store a per-cpu shadow copy of CR4
2015-02-04 12:10:42 +01:00
head64.c
x86/kasan: Fix KASAN shadow region page tables
2015-07-06 14:53:13 +02:00
head_32.S
x86/microcode: Merge the early microcode loader
2015-10-21 11:22:12 +02:00
head_64.S
x86/cpu: Call verify_cpu() after having entered long mode too
2015-11-07 10:45:02 +01:00
head.c
…
hpet.c
timers/x86/hpet: Type adjustments
2015-10-21 11:17:32 +02:00
hw_breakpoint.c
perf/x86/hw_breakpoints: Fix check for kernel-space breakpoints
2015-08-04 10:16:55 +02:00
i386_ksyms_32.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00
i8237.c
…
i8253.c
clockevents/drivers/i8253: Migrate to new 'set-state' interface
2015-08-10 11:40:30 +02:00
i8259.c
x86/irq: Probe for PIC presence before allocating descs for legacy IRQs
2015-11-07 10:37:37 +01:00
io_delay.c
…
ioport.c
x86/iopl: Fix iopl capability check on Xen PV
2016-04-12 09:08:38 -07:00
irq_32.c
genirq: Remove irq argument from irq flow handlers
2015-09-16 15:47:51 +02:00
irq_64.c
x86/irq: Drop unlikely before IS_ERR_OR_NULL
2015-10-01 11:08:56 +02:00
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
irq.c
x86/irq: Call irq_force_move_complete with irq descriptor
2016-03-03 15:07:31 -08:00
irqinit.c
x86/irq: Store irq descriptor in vector array
2015-08-06 00:14:59 +02:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kdebugfs.c
…
kexec-bzimage64.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2015-09-08 12:41:25 -07:00
kgdb.c
x86/kgdb: Replace bool_int_array[NR_CPUS] with bitmap
2015-09-28 10:13:31 +02:00
ksysfs.c
…
kvm.c
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2015-06-24 09:36:49 -07:00
kvmclock.c
x86: kvmclock: abolish PVCLOCK_COUNTS_FROM_ZERO
2015-10-01 15:06:42 +02:00
ldt.c
x86/ldt: Fix small LDT allocation for Xen
2015-09-14 12:10:50 +02:00
livepatch.c
livepatch: Fix crash with !CONFIG_DEBUG_SET_MODULE_RONX
2015-11-06 11:10:03 +01:00
machine_kexec_32.c
x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
2014-12-16 14:08:17 +01:00
machine_kexec_64.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2015-06-23 14:07:26 -07:00
Makefile
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
mcount_64.S
x86/ftrace: Add comment on static function tracing
2015-11-19 11:07:49 +01:00
mmconf-fam10h_64.c
…
module.c
x86/mm/KASLR: Propagate KASLR status to kernel proper
2015-04-03 15:26:15 +02:00
mpparse.c
x86: Cleanup irq_domain ops
2015-04-24 15:36:55 +02:00
msr.c
…
nmi_selftest.c
…
nmi.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
paravirt_patch_32.c
x86/asm/tsc, x86/paravirt: Remove read_tsc() and read_tscp() paravirt hooks
2015-07-06 15:23:26 +02:00
paravirt_patch_64.c
Merge branch 'locking/core' into x86/core, to prepare for dependent patch
2015-06-03 10:07:35 +02:00
paravirt-spinlocks.c
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
2015-05-11 09:52:09 +02:00
paravirt.c
x86/paravirt: Replace the paravirt nop with a bona fide empty function
2015-09-22 22:40:28 +02:00
pci-calgary_64.c
…
pci-dma.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
pci-iommu_table.c
…
pci-nommu.c
…
pci-swiotlb.c
x86/swiotlb: Try coherent allocations with __GFP_NOWARN
2015-06-11 08:28:38 +02:00
pcspeaker.c
…
perf_regs.c
perf/x86/64: Report regs_user->ax too in get_regs_user()
2015-04-11 13:08:53 +02:00
pmem.c
libnvdimm, e820: skip module loading when no type-12
2015-11-30 09:10:33 -08:00
probe_roms.c
…
process_32.c
sched/core, sched/x86: Kill thread_info::saved_preempt_count
2015-10-06 17:08:18 +02:00
process_64.c
x86/iopl/64: Properly context-switch IOPL on Xen PV
2016-04-12 09:08:38 -07:00
process.c
x86/vm86: Set thread.vm86 to NULL on fork/clone
2015-10-31 09:50:25 +01:00
ptrace.c
x86/entry: Move C entry and exit code to arch/x86/entry/common.c
2015-07-07 10:59:05 +02:00
pvclock.c
x86: pvclock: Really remove the sched notifier for cross-cpu migrations
2015-04-27 15:49:30 +02:00
quirks.c
timers/x86/hpet: Type adjustments
2015-10-21 11:17:32 +02:00
reboot_fixups_32.c
…
reboot.c
x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
2016-01-31 11:28:54 -08:00
relocate_kernel_32.S
x86/asm: Optimize unnecessarily wide TEST instructions
2015-03-07 11:12:43 +01:00
relocate_kernel_64.S
x86/asm: Replace "MOVQ $imm, %reg" with MOVL
2015-04-01 13:17:39 +02:00
resource.c
…
rtc.c
x86/paravirt: Prevent rtc_cmos platform device init on PV guests
2015-12-19 21:35:13 +01:00
setup_percpu.c
…
setup.c
x86/microcode: Initialize the driver late when facilities are up
2015-11-23 10:39:49 +01:00
signal_compat.c
x86/compat: Move copy_siginfo_*_user32() to signal_compat.c
2015-07-06 15:28:55 +02:00
signal.c
x86/signal: Fix restart_syscall number for x32 tasks
2015-12-05 18:52:14 +01:00
smp.c
x86/mce: Clear Local MCE opt-in before kexec
2015-08-13 10:12:52 +02:00
smpboot.c
x86 smpboot: Re-enable init_udelay=0 by default on modern CPUs
2015-11-25 23:17:48 +01:00
stacktrace.c
…
step.c
Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes
2015-08-18 09:39:47 +02:00
sys_x86_64.c
x86/mm: Improve AMD Bulldozer ASLR workaround
2015-03-31 10:01:17 +02:00
sysfb_efi.c
…
sysfb_simplefb.c
…
sysfb.c
…
tboot.c
…
tce_64.c
…
test_nx.c
…
test_rodata.c
treewide: Fix typo in printk messages
2015-03-06 23:05:39 +01:00
time.c
x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'
2015-03-23 11:14:17 +01:00
tls.c
x86, tls: Interpret an all-zero struct user_desc as "no segment"
2015-01-22 21:45:07 +01:00
tls.h
…
topology.c
x86: Drop bogus __ref / __refdata annotations
2015-07-20 18:57:20 +02:00
trace_clock.c
x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites
2015-07-06 15:23:29 +02:00
tracepoint.c
…
traps.c
x86/fpu/mpx: Rework MPX 'xstate' types
2015-09-14 12:22:00 +02:00
tsc_msr.c
…
tsc_sync.c
x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers
2015-07-06 15:23:29 +02:00
tsc.c
perf/x86: Fix time_shift in perf_event_mmap_page
2015-10-20 10:30:52 +02:00
uprobes.c
uprobes/x86: Make arch_uretprobe_is_alive(RP_CHECK_CALL) more clever
2015-07-31 10:38:06 +02:00
verify_cpu.S
x86/cpu: Call verify_cpu() after having entered long mode too
2015-11-07 10:45:02 +01:00
vm86_32.c
x86/vm86: Block non-root vm86(old) if mmap_min_addr != 0
2015-09-05 09:01:16 +02:00
vmlinux.lds.S
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
vsmp_64.c
x86: replace __init_or_module with __init in non-modular vsmp_64.c
2015-06-16 14:12:41 -04:00
x86_init.c
Merge tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2015-06-23 13:41:24 -07:00
x8664_ksyms_64.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00