syzbot


KASAN: use-after-free Read in debugfs_remove (3)
Status: closed as dup on 2020/06/28 17:08
Reported-by: syzbot+903b72a010ad6b7a40f2@syzkaller.appspotmail.com
First crash: 1025d, last: 557d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in tracepoint_probe_register (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
KASAN: use-after-free Read in lockref_get 7 420d 519d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in debugfs_remove (2) 1 1195d 1193d 6/22 fixed on 2018/05/17 10:02
linux-4.19 KASAN: use-after-free Read in debugfs_remove C done 15 271d 767d 1/1 fixed on 2020/12/01 11:25
upstream KASAN: use-after-free Read in debugfs_remove 1 1217d 1216d 0/22 closed as invalid on 2018/04/10 15:18
linux-4.14 KASAN: use-after-free Read in debugfs_remove C inconclusive 14 279d 834d 0/1 upstream: reported C repro on 2019/04/17 06:08

Sample crash report:

Crashes (88):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/07/22 13:14 upstream c6dd78fcb8ee b3c615f5 .config log report syz C
ci-upstream-kasan-gce 2019/07/22 05:26 upstream abdfd52a295f 1656845f .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/06/24 10:27 upstream 241e39004581 472f0082 .config log report syz C
ci-upstream-kasan-gce-root 2019/06/23 22:04 upstream 241e39004581 472f0082 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/12/02 02:54 upstream d8f190ee836a 5a581673 .config log report syz C
ci-upstream-kasan-gce 2018/12/02 02:40 upstream d8f190ee836a 5a581673 .config log report syz C
ci-upstream-kasan-gce-smack-root 2018/12/02 02:38 upstream d8f190ee836a 5a581673 .config log report syz C
ci-upstream-kasan-gce-root 2018/12/02 02:12 upstream d8f190ee836a 5a581673 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/07/01 10:57 linux-next 48568d8c7f47 699d6448 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/07/22 15:39 upstream c6dd78fcb8ee b3c615f5 .config log report syz
ci-upstream-kasan-gce-smack-root 2019/07/22 08:21 upstream c6dd78fcb8ee b3c615f5 .config log report syz
ci-upstream-kasan-gce-smack-root 2019/06/24 13:44 upstream 241e39004581 472f0082 .config log report syz
ci-upstream-kasan-gce 2019/06/23 18:39 upstream 241e39004581 472f0082 .config log report syz
ci-upstream-kasan-gce-root 2018/10/22 12:18 upstream 467e050e9760 ecb386fe .config log report syz
ci-upstream-kasan-gce-selinux-root 2018/10/20 16:31 upstream 270b77a0f30e ecb386fe .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/10/21 19:03 linux-next 8c60c36d0b8c ecb386fe .config log report syz
ci-upstream-kasan-gce-smack-root 2020/01/19 20:11 upstream 8f8972a3127f 0342f8c7 .config log report
ci-upstream-kasan-gce 2019/10/16 16:31 upstream 3b1f00aceb7a d4ea592f .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/03 13:11 upstream 0f1a7b3fac05 fc17ba49 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/26 05:16 upstream f41def397161 24d405a3 .config log report
ci-upstream-kasan-gce 2019/09/23 00:06 upstream f7c3bf8fa7e5 d96e88f3 .config log report
ci-upstream-kasan-gce 2019/09/15 20:11 upstream 1609d7604b84 32d59357 .config log report
ci-upstream-kasan-gce 2019/09/04 08:22 upstream 089cf7f6ecb2 12381952 .config log report
ci-upstream-kasan-gce 2019/09/03 16:51 upstream 089cf7f6ecb2 48448e71 .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/18 15:34 upstream 8fde2832bd0b 55bf8926 .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/14 20:43 upstream a8dba0531bc0 5576551b .config log report
ci-upstream-kasan-gce-smack-root 2019/08/09 04:16 upstream ecb095bff5d4 ede31a9b .config log report
ci-upstream-kasan-gce 2019/08/04 15:48 upstream d8778f13b73f 6affd8e8 .config log report
ci-upstream-kasan-gce-root 2019/08/03 21:06 upstream dcb8cfbd8fe9 6affd8e8 .config log report
ci-upstream-kasan-gce 2019/07/31 22:54 upstream 4010b622f1d2 c692b5bd .config log report
ci-upstream-kasan-gce-selinux-root 2019/07/29 12:10 upstream 609488bc979f c85e1c5b .config log report
ci-upstream-kasan-gce-smack-root 2019/06/30 02:52 upstream 728254541ebc 7509bf36 .config log report
ci-upstream-kasan-gce 2019/06/26 01:12 upstream 249155c20f9b 0a8d1a96 .config log report
ci-upstream-kasan-gce 2019/06/20 22:15 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/12 13:29 upstream aa7235483a83 794a1ad7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/27 18:08 upstream baf76f0c58ae b617407b .config log report
ci-upstream-kasan-gce 2019/04/27 07:08 upstream baf76f0c58ae b617407b .config log report
ci-upstream-kasan-gce 2019/04/26 22:12 upstream d0473f978e61 b617407b .config log report
ci-upstream-kasan-gce 2019/04/26 06:23 upstream 8113a85f8720 b617407b .config log report
ci-upstream-kasan-gce-root 2019/04/25 14:59 upstream cd8dead0c394 8e3c52b1 .config log report
ci-upstream-kasan-gce 2019/04/24 05:42 upstream 7142eaa58b49 4d3d6a50 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/21 04:38 upstream 9e5de623a0cb b0e8efcb .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/15 03:45 upstream dc4060a5dc25 505ab413 .config log report
ci-upstream-kasan-gce 2019/04/15 03:29 upstream dc4060a5dc25 505ab413 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/12 04:02 upstream 2d06b235815e 13030ef8 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/12 02:57 upstream 2d06b235815e 13030ef8 .config log report
ci-upstream-kasan-gce 2019/03/25 17:39 upstream 8c2ffd917477 2c86e0a5 .config log report
ci-upstream-kasan-gce-root 2019/03/18 17:37 upstream 9e98c678c2d6 4656beca .config log report
ci-upstream-kasan-gce-root 2019/03/12 06:58 upstream a089e4fed5c5 12365b99 .config log report
ci-upstream-kasan-gce-selinux-root 2019/03/05 20:15 upstream 63bdf4284c38 16559f86 .config log report
ci-upstream-kasan-gce 2019/03/02 09:00 upstream a215ce8f0e00 1c0e457a .config log report
ci-upstream-kasan-gce-selinux-root 2019/02/22 21:57 upstream 6ee2846cb4e7 6a5fcca4 .config log report
ci-upstream-kasan-gce-root 2018/10/08 19:12 upstream 0854ba5ff5c9 8b311eaf .config log report
ci-upstream-kasan-gce-386 2019/08/29 14:48 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce-386 2019/08/23 17:38 upstream e3fb13b7e47c 78ded196 .config log report
ci-upstream-kasan-gce-386 2019/08/10 13:21 upstream 7f20fd23377a acb51638 .config log report
ci-upstream-kasan-gce-386 2019/06/02 04:43 upstream 3ab4436f688c 53c81ea5 .config log report
ci-upstream-kasan-gce-386 2019/05/30 20:01 upstream bec7550cca10 d9aaf3c2 .config log report
ci-upstream-kasan-gce-386 2019/05/16 19:17 upstream 83f3ef3de625 f59a9cb5 .config log report
ci-upstream-kasan-gce-386 2019/04/14 03:28 upstream b60bc0665e6a c402d8f1 .config log report
ci-upstream-kasan-gce-386 2019/04/11 17:24 upstream 582549e3fbe1 13030ef8 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/04 21:15 linux-next 6d028043b55e 040fda58 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/08/17 08:02 linux-next 0c3d3d648b3e 8fd428a1 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/25 04:27 linux-next 9ffadb46f3db 82c13b6b .config log report
ci-upstream-linux-next-kasan-gce-root 2019/04/28 00:27 linux-next 3ddfa8af5dc9 b617407b .config log report
ci-upstream-linux-next-kasan-gce-root 2019/04/16 01:50 linux-next f9221a7a1014 505ab413 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/27 14:20 linux-next a392ee45bae7 4e668495 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/05 21:32 linux-next baf5a9d1f9b9 16559f86 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/14 22:38 linux-next b3418f8bddf4 76dd003f .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/07 15:20 linux-next 1bd831d68d55 aa4feb03 .config log report