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e0ac8457d0
While the tracer accesses ptrace breakpoints, the child task may concurrently exit due to a SIGKILL and thus release its breakpoints at the same time. We can then dereference some freed pointers. To fix this, hold a reference on the child breakpoints before manipulating them. Reported-by: Oleg Nesterov <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]> Acked-by: Paul Mundt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Will Deacon <[email protected]> Cc: Prasad <[email protected]> Link: http://lkml.kernel.org/r/[email protected] |
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| .. | ||
| boards | ||
| boot | ||
| cchips | ||
| configs | ||
| drivers | ||
| include | ||
| kernel | ||
| lib | ||
| lib64 | ||
| math-emu | ||
| mm | ||
| oprofile | ||
| tools | ||
| Kconfig | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Makefile | ||