syzbot


possible deadlock in __might_fault
Status: fixed on 2020/01/09 09:47
Reported-by: syzbot+dd3e1ed823e8f95e8845@syzkaller.appspotmail.com
Fix commit: d41971493d28 usb: mon: Fix a deadlock in usbmon between mmap and read
First crash: 892d, last: 651d

Fix bisection: fixed by (bisect log) :
commit d41971493d28edf2b916ad5201d8301a8513ed51
Author: Pete Zaitcev <zaitcev@redhat.com>
Date: Thu Dec 5 02:39:41 2019 +0000

  usb: mon: Fix a deadlock in usbmon between mmap and read

similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in __might_fault C 8978 1286d 1301d 4/22 fixed on 2018/03/23 18:14
linux-4.19 possible deadlock in __might_fault C done 385 642d 893d 1/1 fixed on 2020/01/18 20:51
android-44 possible deadlock in __might_fault C 6745 1275d 1302d 2/2 fixed on 2018/04/24 18:02
android-49 possible deadlock in __might_fault C 10264 1281d 1302d 3/3 fixed on 2018/04/24 17:23
android-414 possible deadlock in __might_fault 136 664d 892d 0/1 auto-closed as invalid on 2020/03/25 09:38
upstream possible deadlock in __might_fault (3) C 10722 646d 1117d 0/22 closed as dup on 2018/09/16 01:51
upstream possible deadlock in __might_fault (2) C 20 1239d 1242d 9/22 fixed on 2018/07/09 18:05

Sample crash report:

Crashes (295):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2019/10/21 13:30 linux-4.14.y b98aebd29824 b24d2b8a .config log report syz C
ci2-linux-4-14 2019/10/21 09:47 linux-4.14.y b98aebd29824 8c88c9c1 .config log report syz C
ci2-linux-4-14 2019/10/21 08:54 linux-4.14.y b98aebd29824 8c88c9c1 .config log report syz C
ci2-linux-4-14 2019/10/21 07:46 linux-4.14.y b98aebd29824 8c88c9c1 .config log report syz C
ci2-linux-4-14 2019/10/21 07:27 linux-4.14.y b98aebd29824 8c88c9c1 .config log report syz C
ci2-linux-4-14 2019/10/21 06:43 linux-4.14.y b98aebd29824 8c88c9c1 .config log report syz C
ci2-linux-4-14 2019/06/16 12:34 linux-4.14.y a74d0e937a3a 442206d7 .config log report syz C
ci2-linux-4-14 2019/04/22 06:01 linux-4.14.y 68d7a45eec10 b0e8efcb .config log report syz C
ci2-linux-4-14 2019/04/22 01:28 linux-4.14.y 68d7a45eec10 b0e8efcb .config log report syz C
ci2-linux-4-14 2019/04/21 22:00 linux-4.14.y 68d7a45eec10 b0e8efcb .config log report syz C
ci2-linux-4-14 2019/04/20 06:01 linux-4.14.y 58b454ebf81e b0e8efcb .config log report syz C
ci2-linux-4-14 2019/04/19 08:51 linux-4.14.y 58b454ebf81e b0e8efcb .config log report syz C
ci2-linux-4-14 2019/04/16 19:52 linux-4.14.y 1ec8f1f0bffe 505ab413 .config log report syz C
ci2-linux-4-14 2019/04/13 11:08 linux-4.14.y 1ec8f1f0bffe c402d8f1 .config log report syz C
ci2-linux-4-14 2019/10/22 06:05 linux-4.14.y b98aebd29824 c59a7cd8 .config log report syz
ci2-linux-4-14 2019/12/09 12:46 linux-4.14.y a844dc4c5442 1508f453 .config log report
ci2-linux-4-14 2019/12/06 09:27 linux-4.14.y a844dc4c5442 98b4ef2d .config log report
ci2-linux-4-14 2019/12/05 12:09 linux-4.14.y fbc5fe7a54d0 9fd5a512 .config log report
ci2-linux-4-14 2019/12/05 05:59 linux-4.14.y fbc5fe7a54d0 b2088328 .config log report
ci2-linux-4-14 2019/12/03 21:01 linux-4.14.y fbc5fe7a54d0 0ecb9746 .config log report
ci2-linux-4-14 2019/11/30 02:35 linux-4.14.y 43598c571e7e 3a75be00 .config log report
ci2-linux-4-14 2019/11/29 22:38 linux-4.14.y 43598c571e7e 4f7e1d0f .config log report
ci2-linux-4-14 2019/11/29 08:31 linux-4.14.y 43598c571e7e 76357d6f .config log report
ci2-linux-4-14 2019/11/28 10:14 linux-4.14.y 43598c571e7e 97264cb1 .config log report
ci2-linux-4-14 2019/11/27 16:27 linux-4.14.y 43598c571e7e 0d63f89c .config log report
ci2-linux-4-14 2019/11/26 21:46 linux-4.14.y 43598c571e7e 1048481f .config log report
ci2-linux-4-14 2019/11/26 05:53 linux-4.14.y 43598c571e7e 598ca6c8 .config log report
ci2-linux-4-14 2019/11/26 00:54 linux-4.14.y 43598c571e7e 598ca6c8 .config log report
ci2-linux-4-14 2019/11/24 21:22 linux-4.14.y 43598c571e7e 598ca6c8 .config log report
ci2-linux-4-14 2019/11/23 10:47 linux-4.14.y f56f3d0e65ad 598ca6c8 .config log report
ci2-linux-4-14 2019/11/22 11:01 linux-4.14.y f56f3d0e65ad 598ca6c8 .config log report
ci2-linux-4-14 2019/11/21 19:28 linux-4.14.y f56f3d0e65ad 8098ea0f .config log report
ci2-linux-4-14 2019/11/20 13:28 linux-4.14.y 775d01b65b5d 432c7650 .config log report
ci2-linux-4-14 2019/11/19 09:16 linux-4.14.y 775d01b65b5d 432c7650 .config log report
ci2-linux-4-14 2019/11/19 06:00 linux-4.14.y 775d01b65b5d d5696d51 .config log report
ci2-linux-4-14 2019/11/18 16:37 linux-4.14.y 775d01b65b5d d5696d51 .config log report
ci2-linux-4-14 2019/11/17 09:57 linux-4.14.y 775d01b65b5d d5696d51 .config log report
ci2-linux-4-14 2019/11/17 07:50 linux-4.14.y 775d01b65b5d cdac920b .config log report
ci2-linux-4-14 2019/11/12 16:50 linux-4.14.y 4762bcd451a9 048f2d49 .config log report
ci2-linux-4-14 2019/11/11 14:03 linux-4.14.y c9fda4f22428 dc438b91 .config log report
ci2-linux-4-14 2019/11/11 12:27 linux-4.14.y c9fda4f22428 dc438b91 .config log report
ci2-linux-4-14 2019/11/11 00:21 linux-4.14.y c9fda4f22428 dc438b91 .config log report
ci2-linux-4-14 2019/10/23 02:31 linux-4.14.y b98aebd29824 d0686497 .config log report
ci2-linux-4-14 2019/10/21 02:42 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/20 19:38 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/20 10:16 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/19 23:55 linux-4.14.y b98aebd29824 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/17 16:38 linux-4.14.y e132c8d7b58d 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/17 03:41 linux-4.14.y e132c8d7b58d 8c88c9c1 .config log report
ci2-linux-4-14 2019/10/13 05:40 linux-4.14.y e132c8d7b58d 426631dd .config log report
ci2-linux-4-14 2019/10/11 09:05 linux-4.14.y 42327896f194 1a3bad90 .config log report
ci2-linux-4-14 2019/10/07 05:37 linux-4.14.y db1892238c55 f3f7d9c8 .config log report
ci2-linux-4-14 2019/10/06 22:35 linux-4.14.y db1892238c55 f3f7d9c8 .config log report
ci2-linux-4-14 2019/10/06 09:04 linux-4.14.y db1892238c55 f3f7d9c8 .config log report
ci2-linux-4-14 2019/10/05 12:27 linux-4.14.y db1892238c55 f3f7d9c8 .config log report
ci2-linux-4-14 2019/10/04 16:54 linux-4.14.y f6e27dbb1afa c86336cf .config log report
ci2-linux-4-14 2019/10/04 15:12 linux-4.14.y f6e27dbb1afa c86336cf .config log report
ci2-linux-4-14 2019/10/03 22:44 linux-4.14.y f6e27dbb1afa fc17ba49 .config log report
ci2-linux-4-14 2019/04/13 03:10 linux-4.14.y 1ec8f1f0bffe c402d8f1 .config log report