syzbot


possible deadlock in snd_timer_notify
Status: internal: reported on 2021/07/24 19:15
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: f671a691e299 fcntl: fix potential deadlocks for &fown_struct.lock
Patched on: [ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-riscv64 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 54d, last: 3h02m

Sample crash report:

Crashes (38):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/09/17 05:09 upstream bdb575f87217 5b989942 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/09/17 03:43 upstream bdb575f87217 5b989942 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/09/16 14:42 upstream ff1ffd71d5f0 aae492f2 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-selinux-root 2021/09/15 12:42 upstream 3ca706c189db 07e953c1 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-selinux-root 2021/09/15 06:17 upstream 1619b69edce1 07e953c1 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/09/14 19:22 upstream 1619b69edce1 07e953c1 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/09/14 01:22 upstream d0ee23f9d78b 58d09404 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-selinux-root 2021/09/11 06:37 upstream 926de8c4326c 5ae8508a .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-selinux-root 2021/09/10 13:34 upstream bf9f243f23e6 5ae8508a .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/09/10 11:57 upstream bf9f243f23e6 5ae8508a .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/08/30 16:54 upstream 7d2a07b76933 8f58a0ef .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/08/30 02:57 upstream 90ac80dcd313 be2c130d .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce 2021/08/29 02:40 upstream 3f5ad13cb012 be2c130d .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/28 13:13 upstream 77dd11439b86 be2c130d .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/24 20:27 upstream 6e764bcd1cf7 b599f2fc .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce 2021/08/23 17:15 upstream e22ce8eb631b b599f2fc .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/19 05:31 upstream d6d09a694205 a2fe1cb5 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce 2021/08/14 04:09 upstream dfa377c35d70 2489ab88 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/14 03:37 upstream dfa377c35d70 2489ab88 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/11 11:47 upstream 9e723c5380c6 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce 2021/08/11 11:42 upstream 9e723c5380c6 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/08/11 11:37 upstream 761c6d7ec820 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/08/11 11:37 upstream 761c6d7ec820 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/08 05:26 upstream 85a90500f9a1 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/08/07 19:58 upstream c9194f32bfd9 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/07 02:48 upstream 894d6f401b21 6972b106 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/05 23:04 upstream 902e7f373fff d2d6e680 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/04 17:14 upstream d5ad8ec3cfb5 b97d64c9 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/08/02 11:44 upstream c500bee1c5b2 6c236867 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-smack-root 2021/07/31 22:48 upstream f3438b4c4e69 6c236867 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/07/31 14:45 upstream c7d102232649 6c236867 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/07/30 02:11 upstream 7e96bf476270 c585c7b0 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/07/28 19:08 upstream 4010a528219e 17d6ab15 .config log report info possible deadlock in snd_timer_notify
ci-upstream-kasan-gce-root 2021/07/24 19:14 upstream f0fddcec6b62 4d1b57d4 .config log report info possible deadlock in snd_timer_notify
ci-upstream-linux-next-kasan-gce-root 2021/09/17 02:13 linux-next 368847b165bb 5b989942 .config log report info possible deadlock in snd_timer_notify
ci-upstream-linux-next-kasan-gce-root 2021/09/16 06:42 linux-next 368847b165bb 07e953c1 .config log report info possible deadlock in snd_timer_notify
ci-upstream-linux-next-kasan-gce-root 2021/07/30 03:18 linux-next 4ccc9e2db7ac c585c7b0 .config log report info possible deadlock in snd_timer_notify
ci-upstream-linux-next-kasan-gce-root 2021/07/28 22:13 linux-next 42d0b5f52c9b 9a4781d4 .config log report info possible deadlock in snd_timer_notify