x86: avoid dereferencing beyond stack + THREAD_SIZE

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It's possible for get_wchan() to dereference past task->stack + THREAD_SIZE
while iterating through instruction pointers if fp equals the upper boundary,
causing a kernel panic.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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David Rientjes 2008-10-07 14:15:11 -07:00 • committed by Ingo Molnar

parent fd04808830

commit e1e23bb051

1 changed files with 2 additions and 2 deletions

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arch/x86/kernel/process_64.c

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