syzbot


BUG: sleeping function called from invalid context in tpk_write
Status: fixed on 2020/02/18 14:31
Reported-by: syzbot+2eeef62ee31f9460ad65@syzkaller.appspotmail.com
Fix commit: 9a655c77 ttyprintk: fix a potential deadlock in interrupt context issue
First crash: 517d, last: 476d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: sleeping function called from invalid context in tpk_write C done 10 457d 519d 1/1 fixed on 2020/03/06 21:15
linux-4.19 BUG: sleeping function called from invalid context in tpk_write C done 30 457d 519d 1/1 fixed on 2020/03/06 21:15

Sample crash report:

Crashes (12):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/12/07 23:36 upstream ad910e36 1508f453 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/07 17:18 upstream eea2d5da 85f26751 .config log report syz C
ci-upstream-kasan-gce-root 2019/12/07 15:55 upstream eea2d5da 85f26751 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/20 02:05 linux-next 9f8535c5 36650b4b .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/19 21:47 linux-next 9f8535c5 36650b4b .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/01/17 20:30 upstream ab7541c3 3de7aabb .config log report
ci-upstream-kasan-gce-selinux-root 2020/01/12 04:25 upstream ac61145a 4c04afaa .config log report
ci-upstream-kasan-gce-root 2020/01/09 17:31 upstream b07f636f 4de4e9f0 .config log report
ci-upstream-kasan-gce-selinux-root 2020/01/07 02:05 upstream ec7b3f53 53430d97 .config log report
ci-upstream-kasan-gce-selinux-root 2020/01/06 01:10 upstream c79f46a2 438e1227 .config log report
ci-upstream-kasan-gce-root 2020/01/03 03:01 upstream 7ca4ad5b 25a0186e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/01/11 04:19 linux-next 6c09d7db 4de4e9f0 .config log report