rethook: use preempt_{disable, enable}_notrace in rethook_trampoline_handler

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commit be243bacfb upstream.

This patch replaces preempt_{disable, enable} with its corresponding
notrace version in rethook_trampoline_handler so no worries about stack
recursion or overflow introduced by preempt_count_{add, sub} under
fprobe + rethook context.

Link: https://lore.kernel.org/all/20230517034510.15639-2-zegao@tencent.com/

Fixes: 54ecbe6f1e ("rethook: Add a generic return hook")
Signed-off-by: Ze Gao <zegao@tencent.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Ze Gao 2023-05-17 11:45:06 +08:00 • committed by Greg Kroah-Hartman

parent 4e38a02b22

commit c46d3efb4d

1 changed files with 2 additions and 2 deletions

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kernel/trace/rethook.c

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