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| author |   Tiezhu Yang <yangtiezhu@loongson.cn> | 2022-03-23 16:06:57 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 19:00:35 -0700 |
| commit | e7ce7500375a63348e1d3a703c8d5003cbe3fea6 (patch) | |
| tree | 09ca84681e0871dedb23cdedfe80965a2aadb509 /mm/kasan | |
| parent | ubsan: no need to unset panic_on_warn in ubsan_epilogue() (diff) | |
| download | linux-dev-e7ce7500375a63348e1d3a703c8d5003cbe3fea6.tar.xz linux-dev-e7ce7500375a63348e1d3a703c8d5003cbe3fea6.zip | |
kasan: no need to unset panic_on_warn in end_report()
panic_on_warn is unset inside panic(), so no need to unset it before
calling panic() in end_report().
Link: https://lkml.kernel.org/r/1644324666-15947-6-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/report.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 3ad9624dcc56..f14146563d41 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -117,16 +117,8 @@ static void end_report(unsigned long *flags, unsigned long addr) pr_err("==================================================================\n"); add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irqrestore(&report_lock, *flags); - if (panic_on_warn && !test_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags)) { - /* - * This thread may hit another WARN() in the panic path. - * Resetting this prevents additional WARN() from panicking the - * system on this thread. Other threads are blocked by the - * panic_mutex in panic(). - */ - panic_on_warn = 0; + if (panic_on_warn && !test_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags)) panic("panic_on_warn set ...\n"); - } if (kasan_arg_fault == KASAN_ARG_FAULT_PANIC) panic("kasan.fault=panic set ...\n"); kasan_enable_current(); |