diff options
| author | Bradley Morgan <brads@mainlining.org> | 2026-09-16 18:29:54 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-13 21:25:45 -0700 |
| commit | 245001a347f1effc09c233d1712e1efeedab59ee (patch) | |
| tree | 1b3ee2b355d216ed5d7f57637d999244ee8b86c1 /include/linux/panic.h | |
| parent | 75eb687ff2bcec9fba31bbe266e5f91e5c283efe (diff) | |
panic: fix va_list reuse in panic_try_force_cpu()
vsnprintf() consumes the caller's va_list. When the redirect fails,
vpanic() reuses it for the panic message, which is undefined behavior.
Use va_copy().
Link: https://lore.kernel.org/20260916182957.7788-4-brads@mainlining.org
Fixes: 2e171ab29f91 ("panic: add panic_force_cpu= parameter to redirect panic to a specific CPU")
Signed-off-by: Bradley Morgan <brads@mainlining.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Guenetr Roeck <linux@roeck-us.net>
Cc: Sashiko <sashiko-bot@kernel.org>
Cc: Wang Jinchao <wangjinchao600@gmail.com>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'include/linux/panic.h')
0 files changed, 0 insertions, 0 deletions