ARM64: check stack pointer in get_wchan

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get_wchan() is lockless. Task may wakeup at any time and change its own stack,
thus each next stack frame may be overwritten and filled with random stuff.

Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Konstantin Khlebnikov 2013-12-05 13:30:10 +00:00 • committed by Catalin Marinas

parent 50afc33a90

commit 408c3658b0

1 changed files with 5 additions and 2 deletions

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arch/arm64/kernel/process.c

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