Messages in this thread | | | Subject | [PATCH -tip 0/2] kprobes: fix bugs by updating blacklist | From | Masami Hiramatsu <> | Date | Wed, 30 Oct 2013 10:53:34 +0000 |
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Recently I've found that putting probes on some functions could lock or reboot the kernel. These two patches fix those bugs by prohibiting probing such functions by adding those to blacklist(kprobes.text).
In both cases, those functions are related to int3 handling execution path. One is related to irqoff-tracer and the other is related to notifier debug option.
Thank you,
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Masami Hiramatsu (2): [BUGFIX] kprobes/x86: Prohibit probing on debug_stack_* [BUGFIX] kprobes: Prohibit probing on func_ptr_is_kernel_text
arch/x86/kernel/cpu/common.c | 7 ++++--- kernel/extable.c | 3 ++- 2 files changed, 6 insertions(+), 4 deletions(-)
-- Masami HIRAMATSU IT Management Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com
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