syzbot


possible deadlock in send_sigurg
Status: fixed on 2020/05/10 10:42
Reported-by: syzbot+f675f964019f884dbd0f@syzkaller.appspotmail.com
Fix commit: 63f818f46af9 proc: Use a dedicated lock in struct pid
First crash: 614d, last: 600d

Cause bisection: introduced by (bisect log) :
commit 7bc3e6e55acf065500a24621f3b313e7e5998acf
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Thu Feb 20 00:22:26 2020 +0000

  proc: Use a list of inodes to flush from proc

Crash: possible deadlock in send_sigurg (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in send_sigurg (2) C done 25 360d 411d 21/22 fixed on 2021/03/10 01:48

Sample crash report:

Crashes (65):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/04/08 21:11 upstream f5e94d10e4c4 db9bcd4b .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/04/03 02:40 upstream 7be97138e727 a34e2c33 .config log report syz C
ci-upstream-kasan-gce-386 2020/04/02 23:45 upstream 7be97138e727 a34e2c33 .config log report syz C
ci-upstream-kasan-gce-root 2020/04/10 08:46 upstream 5d30bcacd91a a8c6a3f8 .config log report
ci-upstream-kasan-gce 2020/04/09 23:16 upstream 5d30bcacd91a a8c6a3f8 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/09 23:02 upstream 5d30bcacd91a a8c6a3f8 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/07 19:12 upstream 7e63420847ae db9bcd4b .config log report
ci-upstream-kasan-gce-smack-root 2020/04/03 23:09 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/03 23:08 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-root 2020/04/03 23:07 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce 2020/04/03 22:57 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-root 2020/04/03 22:49 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-selinux-root 2020/04/03 12:33 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-root 2020/04/03 07:47 upstream 7be97138e727 a34e2c33 .config log report
ci-upstream-kasan-gce 2020/04/03 06:22 upstream 7be97138e727 a34e2c33 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/02 21:46 upstream 7be97138e727 a34e2c33 .config log report
ci-upstream-kasan-gce 2020/04/02 21:43 upstream 7be97138e727 a34e2c33 .config log report
ci-upstream-kasan-gce-386 2020/04/09 23:10 upstream 87ebc45d2d32 a8c6a3f8 .config log report
ci-upstream-kasan-gce-386 2020/04/09 20:50 upstream 87ebc45d2d32 a8c6a3f8 .config log report
ci-upstream-kasan-gce-386 2020/04/09 19:21 upstream 87ebc45d2d32 a8c6a3f8 .config log report
ci-upstream-kasan-gce-386 2020/04/07 22:15 upstream 763dede1b248 db9bcd4b .config log report
ci-upstream-kasan-gce-386 2020/04/07 21:04 upstream 763dede1b248 db9bcd4b .config log report
ci-upstream-kasan-gce-386 2020/04/07 19:08 upstream 7e63420847ae db9bcd4b .config log report
ci-upstream-kasan-gce-386 2020/04/07 17:30 upstream 7e63420847ae 99a96044 .config log report
ci-upstream-kasan-gce-386 2020/04/07 10:56 upstream 7e63420847ae 99a96044 .config log report
ci-upstream-kasan-gce-386 2020/04/06 21:43 upstream 7e63420847ae 99a96044 .config log report
ci-upstream-kasan-gce-386 2020/04/06 20:09 upstream 7e63420847ae 99a96044 .config log report
ci-upstream-kasan-gce-386 2020/04/03 23:31 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/03 23:09 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/03 22:58 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/03 20:48 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/03 13:08 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/03 11:38 upstream bef7b2a7be28 5ed396e6 .config log report
ci-upstream-kasan-gce-386 2020/04/02 22:21 upstream 7be97138e727 a34e2c33 .config log report
ci-upstream-net-this-kasan-gce 2020/04/16 12:34 net edadedf1c5b4 c743fcb3 .config log report
ci-upstream-net-this-kasan-gce 2020/04/14 17:29 net e154659ba39a 3f3c5574 .config log report
ci-upstream-net-this-kasan-gce 2020/04/13 14:37 net e154659ba39a 17a986e5 .config log report
ci-upstream-net-this-kasan-gce 2020/04/12 19:39 net e6aaeafd56e3 36b0b050 .config log report
ci-upstream-net-this-kasan-gce 2020/04/12 11:54 net 3b72f84f8fb6 36b0b050 .config log report
ci-upstream-net-this-kasan-gce 2020/04/12 01:04 net 3b72f84f8fb6 a8c6a3f8 .config log report
ci-upstream-net-this-kasan-gce 2020/04/11 20:31 net 9d8592896fd9 a8c6a3f8 .config log report
ci-upstream-net-this-kasan-gce 2020/04/08 18:55 net b93cfb9cd3af db9bcd4b .config log report
ci-upstream-net-kasan-gce 2020/04/16 22:07 net-next 63bef48fd6c9 c743fcb3 .config log report
ci-upstream-net-kasan-gce 2020/04/16 09:24 net-next 63bef48fd6c9 c743fcb3 .config log report
ci-upstream-net-kasan-gce 2020/04/16 08:07 net-next 63bef48fd6c9 c743fcb3 .config log report
ci-upstream-net-kasan-gce 2020/04/15 06:46 net-next 63bef48fd6c9 3f3c5574 .config log report
ci-upstream-net-kasan-gce 2020/04/15 05:14 net-next 63bef48fd6c9 3f3c5574 .config log report
ci-upstream-net-kasan-gce 2020/04/15 02:17 net-next 63bef48fd6c9 3f3c5574 .config log report
ci-upstream-net-kasan-gce 2020/04/14 22:04 net-next 63bef48fd6c9 3f3c5574 .config log report
ci-upstream-net-kasan-gce 2020/04/13 16:11 net-next 63bef48fd6c9 17a986e5 .config log report
ci-upstream-net-kasan-gce 2020/04/12 10:41 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/11 22:15 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/11 11:20 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/10 23:45 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/10 17:16 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/10 13:38 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/10 06:38 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/10 02:16 net-next 63bef48fd6c9 a8c6a3f8 .config log report
ci-upstream-net-kasan-gce 2020/04/08 20:45 net-next 63bef48fd6c9 db9bcd4b .config log report
ci-upstream-net-kasan-gce 2020/04/08 08:45 net-next 763dede1b248 db9bcd4b .config log report
ci-upstream-net-kasan-gce 2020/04/08 07:58 net-next 763dede1b248 db9bcd4b .config log report
ci-upstream-net-kasan-gce 2020/04/08 07:15 net-next 763dede1b248 db9bcd4b .config log report