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| author | Oleg Nesterov <oleg@redhat.com> | 2024-02-26 17:56:53 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-06 13:07:39 -0800 |
| commit | a436184e3bfb14b3c38e6ed0c2e7f6d810312c4f (patch) | |
| tree | 5f1e6811fdc6a5c2333a847f5e717c423774793a /kernel/signal.c | |
| parent | dd69edd643a8263f9a96d0a3a82d8d50d9df9b48 (diff) | |
| download | linux-a436184e3bfb14b3c38e6ed0c2e7f6d810312c4f.tar.gz linux-a436184e3bfb14b3c38e6ed0c2e7f6d810312c4f.tar.bz2 linux-a436184e3bfb14b3c38e6ed0c2e7f6d810312c4f.zip | |
get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task
This initialization is incomplete and unnecessary, neither do_group_exit()
nor PF_USER_WORKER need ksig->info.
Link: https://lkml.kernel.org/r/20240226165653.GA20834@redhat.com
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Wen Yang <wenyang.linux@foxmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index a69d3069067a..9c6a5ccac328 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2727,12 +2727,15 @@ relock: /* Has this task already been marked for death? */ if ((signal->flags & SIGNAL_GROUP_EXIT) || signal->group_exec_task) { - clear_siginfo(&ksig->info); - ksig->info.si_signo = signr = SIGKILL; + signr = SIGKILL; sigdelset(¤t->pending.signal, SIGKILL); trace_signal_deliver(SIGKILL, SEND_SIG_NOINFO, - &sighand->action[SIGKILL - 1]); + &sighand->action[SIGKILL-1]); recalc_sigpending(); + /* + * implies do_group_exit() or return to PF_USER_WORKER, + * no need to initialize ksig->info/etc. + */ goto fatal; } |