syzbot


WARNING in kernfs_get
Status: fixed on 2019/11/20 22:01
Reported-by: syzbot+3dcb532381f98c86aeb1@syzkaller.appspotmail.com
Fix commit: ac43432cb1f5 driver core: Fix use-after-free and double free on glue directory
First crash: 1182d, last: 853d

Cause bisection: introduced by (bisect log) :
commit 726e41097920a73e4c7c33385dcc0debb1281e18
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue Jul 10 00:29:10 2018 +0000

  drivers: core: Remove glue dirs from sysfs earlier

Crash: WARNING: refcount bug in hci_register_dev (log)
Repro: C syz .config
duplicates (3):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
WARNING in sysfs_remove_group (2) C 1725 803d 1170d 0/22 closed as dup on 2018/11/25 13:06
WARNING in kernfs_put C 4 1008d 1130d 0/22 closed as dup on 2018/10/31 16:05
WARNING: refcount bug in kobject_put C 4 889d 1128d 0/22 closed as dup on 2018/11/02 15:33
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in kernfs_get C done 14 814d 954d 1/1 fixed on 2019/12/05 23:59
upstream WARNING in kernfs_get (2) 2 433d 452d 0/22 auto-closed as invalid on 2021/01/25 03:55
linux-4.14 WARNING in kernfs_get C done 17 838d 958d 1/1 fixed on 2019/12/07 19:24
upstream WARNING in kernfs_get (3) 2 1d22h 2d23h 0/22 upstream: reported on 2021/12/02 03:26
android-414 WARNING in kernfs_get syz 69 816d 969d 0/1 public: reported syz repro on 2019/04/10 15:44

Sample crash report:

Crashes (316):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/08/01 20:45 upstream 1e78030e5e5b 835dffe7 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/06/30 07:09 upstream 728254541ebc 7509bf36 .config log report syz C
ci-upstream-kasan-gce-root 2019/06/27 07:50 upstream 249155c20f9b 7509bf36 .config log report syz C
ci-upstream-kasan-gce-root 2019/06/01 17:02 upstream 3ab4436f688c 53c81ea5 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/06/01 05:30 upstream 3ab4436f688c 53c81ea5 .config log report syz C
ci-upstream-kasan-gce 2019/04/23 00:05 upstream 085b7755808a 53199d6e .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/03/14 04:41 upstream ebc551f2b8f9 2881fc25 .config log report syz C
ci-upstream-kasan-gce-root 2019/03/09 23:16 upstream 38e7571c07be 12365b99 .config log report syz C
ci-upstream-kasan-gce 2019/03/07 06:25 upstream afe6fe7036c6 18215b8d .config log report syz C
ci-upstream-kasan-gce-root 2019/03/06 19:36 upstream 3717f613f48d 05cf83bf .config log report syz C
ci-upstream-kasan-gce 2019/03/06 17:47 upstream 3717f613f48d 05cf83bf .config log report syz C
ci-upstream-kasan-gce-root 2019/03/06 17:46 upstream 3717f613f48d 05cf83bf .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/03/06 17:45 upstream 3717f613f48d 05cf83bf .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/03/06 17:45 upstream 3717f613f48d 05cf83bf .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/03/02 12:43 upstream a215ce8f0e00 1c0e457a .config log report syz C
ci-upstream-kasan-gce-root 2019/02/27 15:49 upstream 7d762d69145a 083cfd0e .config log report syz C
ci-upstream-kasan-gce 2019/02/27 15:17 upstream 7d762d69145a 083cfd0e .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/02/26 19:14 upstream 7d762d69145a a36ecd98 .config log report syz C
ci-upstream-kasan-gce 2019/02/26 19:07 upstream 7d762d69145a a36ecd98 .config log report syz C
ci-upstream-kasan-gce-root 2019/02/19 21:02 upstream b5372fe5dc84 4df543c9 .config log report syz C
ci-upstream-kasan-gce 2019/02/14 10:38 upstream 1f947a7a011f 6a46f448 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/02/14 10:37 upstream 1f947a7a011f 6a46f448 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/02/14 10:33 upstream 1f947a7a011f 6a46f448 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/09/10 02:01 upstream 9a5682765a2e 6b5120a4 .config log report syz C
ci-upstream-kasan-gce-386 2019/04/23 00:35 upstream 085b7755808a 53199d6e .config log report syz C
ci-upstream-kasan-gce-386 2019/04/22 17:01 upstream 085b7755808a 0a77c33c .config log report syz C
ci-upstream-kasan-gce-386 2019/02/27 15:15 upstream 7d762d69145a 083cfd0e .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/04/27 04:08 linux-next 3ddfa8af5dc9 b617407b .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/03/04 23:20 linux-next 5d57915a1c8b 7c693b52 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/02/26 19:07 linux-next 8e7f81e2ebc4 a36ecd98 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/02/19 13:07 linux-next 43dc36c945ef 59f36113 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/02/14 12:12 linux-next b3418f8bddf4 6a46f448 .config log report syz C
ci-upstream-kasan-gce 2019/07/01 00:57 upstream 6fbc7275c7a9 699d6448 .config log report syz
ci-upstream-kasan-gce 2019/06/05 09:04 upstream 788a024921c4 bfb4a51e .config log report syz
ci-upstream-kasan-gce-smack-root 2019/06/02 12:35 upstream 3ab4436f688c 53c81ea5 .config log report syz
ci-upstream-kasan-gce-root 2019/03/22 13:59 upstream 0939221e6468 dce6e62f .config log report syz
ci-upstream-kasan-gce 2019/03/12 04:52 upstream a089e4fed5c5 12365b99 .config log report syz
ci-upstream-kasan-gce-selinux-root 2019/03/07 05:07 upstream afe6fe7036c6 18215b8d .config log report syz
ci-upstream-kasan-gce-root 2019/03/07 01:54 upstream afe6fe7036c6 18215b8d .config log report syz
ci-upstream-kasan-gce-386 2019/06/27 05:45 upstream 249155c20f9b 7509bf36 .config log report syz
ci-upstream-kasan-gce-386 2019/03/16 14:40 upstream 9c7dc824d9a4 bab43553 .config log report syz
ci-upstream-kasan-gce-386 2019/03/07 04:28 upstream afe6fe7036c6 18215b8d .config log report syz
ci-upstream-kasan-gce-386 2019/03/02 16:54 upstream a215ce8f0e00 1c0e457a .config log report syz
ci-upstream-linux-next-kasan-gce-root 2019/07/25 10:11 linux-next 13bf6d6a51df 32329ceb .config log report syz
ci-upstream-kasan-gce 2019/08/05 01:33 upstream 4b6f23161b4e 6affd8e8 .config log report
ci-upstream-kasan-gce 2019/08/01 19:33 upstream 1e78030e5e5b 835dffe7 .config log report
ci-upstream-kasan-gce 2019/07/31 13:51 upstream 629f8205a6cc 7c7ded69 .config log report
ci-upstream-kasan-gce 2019/07/27 08:59 upstream 3ea54d9b0d65 c85e1c5b .config log report
ci-upstream-kasan-gce-root 2019/07/20 10:24 upstream abdfd52a295f 1656845f .config log report
ci-upstream-kasan-gce 2019/07/19 18:35 upstream 3bfe1fc46794 1656845f .config log report
ci-upstream-kasan-gce 2019/07/17 04:08 upstream 3eb514866f20 0d10349c .config log report
ci-upstream-kasan-gce 2019/07/04 12:56 upstream 550d1f5bda33 55565fa0 .config log report
ci-upstream-kasan-gce 2019/06/26 11:20 upstream 249155c20f9b 4d342240 .config log report
ci-upstream-kasan-gce-root 2019/06/21 18:41 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-root 2019/06/21 14:25 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/15 23:19 upstream e01e060fe00d 442206d7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/14 15:23 upstream c11fb13a117e 998ccc76 .config log report
ci-upstream-kasan-gce 2019/06/11 22:16 upstream 01ccc3ad4413 ea2f4006 .config log report
ci-upstream-kasan-gce 2019/06/08 12:52 upstream 79c3ba3206c7 cf9c3a50 .config log report
ci-upstream-kasan-gce-smack-root 2019/06/08 06:28 upstream 79c3ba3206c7 cf9c3a50 .config log report
ci-upstream-kasan-gce 2019/06/06 00:32 upstream 156c05917e09 bfb4a51e .config log report
ci-upstream-kasan-gce-smack-root 2019/04/28 13:47 upstream 037904a22bf8 b617407b .config log report
ci-upstream-kasan-gce 2019/04/28 00:14 upstream 037904a22bf8 b617407b .config log report
ci-upstream-kasan-gce-smack-root 2019/04/25 21:05 upstream f6f3e747454f f46aabc8 .config log report
ci-upstream-kasan-gce-root 2019/04/24 12:06 upstream ba25b50d582f 8e3c52b1 .config log report
ci-upstream-kasan-gce-root 2019/04/23 21:52 upstream 7142eaa58b49 4d3d6a50 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/22 14:58 upstream 085b7755808a 0a77c33c .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/13 11:15 upstream 6d0a598489ca c402d8f1 .config log report
ci-upstream-kasan-gce 2019/04/13 02:46 upstream 8ee15f324866 c402d8f1 .config log report
ci-upstream-kasan-gce 2019/04/10 20:20 upstream 771acc7e4a6e e955ac50 .config log report
ci-upstream-kasan-gce 2019/04/10 03:36 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 04:07 upstream 869e3305f23d 995065ff .config log report
ci-upstream-kasan-gce-root 2019/04/08 04:40 upstream 3b0468914708 c34fde03 .config log report
ci-upstream-kasan-gce-root 2019/04/04 05:35 upstream 8ed86627f715 d6fc4177 .config log report
ci-upstream-kasan-gce-root 2019/04/03 05:33 upstream 5e7a8ca31926 dfd3394d .config log report
ci-upstream-kasan-gce-386 2019/07/19 21:01 upstream 31cc088a4f5d 1656845f .config log report
ci-upstream-kasan-gce-386 2019/07/01 08:19 upstream 6fbc7275c7a9 699d6448 .config log report
ci-upstream-kasan-gce-386 2019/06/23 18:19 upstream 241e39004581 472f0082 .config log report
ci-upstream-kasan-gce-386 2019/06/19 20:11 upstream bed3c0d84e7e 34bf9440 .config log report
ci-upstream-kasan-gce-386 2019/05/27 02:03 upstream 128f2bfafcf2 85c57315 .config log report
ci-upstream-kasan-gce-386 2019/05/23 12:37 upstream 54dee406374c 0dadcd9d .config log report
ci-upstream-kasan-gce-386 2019/05/22 04:17 upstream 5bdd9ad875b6 13427bd9 .config log report
ci-upstream-kasan-gce-386 2019/05/19 11:53 upstream 72cf0b07418a 5a4461b0 .config log report
ci-upstream-kasan-gce-386 2019/04/28 10:40 upstream 037904a22bf8 b617407b .config log report
ci-upstream-kasan-gce-386 2019/04/21 00:49 upstream 9e5de623a0cb b0e8efcb .config log report
ci-upstream-kasan-gce-386 2019/04/17 20:50 upstream fe5cdef29e41 b0e8efcb .config log report
ci-upstream-kasan-gce-386 2019/03/28 00:38 upstream 65ae689329c5 4e668495 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/07/24 05:37 linux-next 6d21a41b7b1f de453f34 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/28 02:04 linux-next 8087b004bd09 7509bf36 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/18 01:13 linux-next a125097c8410 442206d7 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/04/09 02:52 linux-next ac5b84a1ffe9 995065ff .config log report
ci-upstream-linux-next-kasan-gce-root 2019/04/08 11:32 linux-next ac5b84a1ffe9 c34fde03 .config log report