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| author | Thomas Gleixner | 2015-12-31 17:30:45 +0100 |
|---|---|---|
| committer | Thomas Gleixner | 2016-01-15 13:43:59 +0100 |
| commit | 36f34c8c63da3e272fd66f91089228c22d2b6e8b (patch) | |
| tree | 7797528912186ea732fb2679482472f1a90f2b35 /arch/x86/kernel/apic | |
| parent | x86/irq: Fix a race in x86_vector_free_irqs() (diff) | |
| download | kernel-qcow2-linux-36f34c8c63da3e272fd66f91089228c22d2b6e8b.tar.gz kernel-qcow2-linux-36f34c8c63da3e272fd66f91089228c22d2b6e8b.tar.xz kernel-qcow2-linux-36f34c8c63da3e272fd66f91089228c22d2b6e8b.zip | |
x86/irq: Validate that irq descriptor is still active
In fixup_irqs() we unconditionally dereference the irq chip of an irq
descriptor. The descriptor might still be valid, but already cleaned up,
i.e. the chip removed. Add a check for this condition.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Joe Lawrence <joe.lawrence@stratus.com>
Cc: Jeremiah Mahler <jmmahler@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: andy.shevchenko@gmail.com
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org #4.3+
Link: http://lkml.kernel.org/r/20151231160106.236423282@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/apic')
0 files changed, 0 insertions, 0 deletions