From: zhanchengbin Date: Mon, 10 Oct 2022 09:23:24 +0000 (+0800) Subject: [PATCH 24/24] fsck: Processes may kill other processes. X-Git-Tag: archive/raspbian/2.40.2-8+rpi1~1^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2~8 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/%22bookmarks:/?a=commitdiff_plain;h=33a00f384e234dea5afdd094c7f3d9c8192048d9;p=util-linux.git [PATCH 24/24] fsck: Processes may kill other processes. A error in disk-utils/fsck.c, if run the fsck -N command, processes don't execute, just show what would be done. However, the pid whose value is -1 is added to the instance_list list in the execute function,if the kill_all function is called later, kill(-1, signum) is executed, Signals are sent to all processes except the number one process and itself. Other processes will be killed if they use the default signal processing function. Signed-off-by: zhanchengbin Reviewed-by: Lukas Czerner Gbp-Pq: Topic upstream Gbp-Pq: Name 0024-fsck-Processes-may-kill-other-processes.patch --- diff --git a/disk-utils/fsck.c b/disk-utils/fsck.c index 505952c..800d3ce 100644 --- a/disk-utils/fsck.c +++ b/disk-utils/fsck.c @@ -730,6 +730,8 @@ static int kill_all(int signum) for (inst = instance_list; inst; inst = inst->next) { if (inst->flags & FLAG_DONE) continue; + if (inst->pid <= 0) + continue; kill(inst->pid, signum); n++; }