syzbot


KASAN: use-after-free Read in blkdev_get
Status: upstream: reported C repro on 2018/06/13 16:27
Reported-by: syzbot+eaeb616d85c9a0afec7d@syzkaller.appspotmail.com
First crash: 1193d, last: 481d

Cause bisection: introduced by (bisect log) :
commit 77ef8f5177599efd0cedeb52c1950c1bd73fa5e3
Author: Chris Metcalf <cmetcalf@ezchip.com>
Date: Mon Jan 25 20:05:34 2016 +0000

  tile kgdb: fix bug in copy to gdb regs, and optimize memset

Crash: BUG: spinlock lockup suspected in nf_conntrack_lock (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Read in blkdev_get syz error 8 455d 633d 0/1 upstream: reported syz repro on 2019/12/24 19:21
linux-4.19 KASAN: use-after-free Read in blkdev_get C error 10 525d 635d 0/1 upstream: reported C repro on 2019/12/23 13:45
Patch testing requests:
Created Duration User Patch Repo Result
2021/06/30 07:00 17m kael_w@yeah.net git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 73748627df83 OK

Sample crash report:

Crashes (117):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2018/06/13 15:48 upstream f5b7769eb040 27c5f59f .config log report syz C
ci-upstream-kasan-gce-root 2020/03/24 16:18 upstream 979e52ca0469 68660b21 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/29 02:58 upstream f8788d86ab28 59b57593 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/28 17:51 upstream f8788d86ab28 59b57593 .config log report
ci-upstream-kasan-gce-root 2020/02/22 03:31 upstream b0dd1eb220c0 2ffa6679 .config log report
ci-upstream-kasan-gce-selinux-root 2019/12/18 20:06 upstream 2187f215ebaa 79b211f7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/06/20 19:56 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-kasan-gce-smack-root 2018/12/23 09:17 upstream 9105b8aa50c1 e3bd7ab8 .config log report
ci-upstream-kasan-gce-root 2018/09/02 19:04 upstream 899ba79553cf a4718693 .config log report
ci-upstream-kasan-gce-root 2018/08/30 11:25 upstream ff69279a44e9 6c7e9d3d .config log report
ci-upstream-kasan-gce-root 2018/08/30 09:32 upstream ff69279a44e9 6c7e9d3d .config log report
ci-upstream-kasan-gce-root 2018/08/28 14:31 upstream 050cdc6c9501 7ef1de9e .config log report
ci-upstream-kasan-gce-root 2018/08/27 09:29 upstream 5b394b2ddf03 758cd203 .config log report
ci-upstream-kasan-gce-root 2018/08/26 20:35 upstream aba16dc5cf93 758cd203 .config log report
ci-upstream-kasan-gce-root 2018/08/25 09:37 upstream 051935978432 9be5aa1d .config log report
ci-upstream-kasan-gce-root 2018/08/23 02:08 upstream 899fbc33fd77 95b5c82b .config log report
ci-upstream-kasan-gce-root 2018/08/20 09:39 upstream 2ad0d5269970 2dc4378f .config log report
ci-upstream-kasan-gce-root 2018/08/19 07:31 upstream a18d783fedfe de20bcbb .config log report
ci-upstream-kasan-gce-root 2018/08/18 00:57 upstream edb0a2000936 738da825 .config log report
ci-upstream-kasan-gce-root 2018/08/16 23:08 upstream f91e654474d4 9ccc1d45 .config log report
ci-upstream-kasan-gce-root 2018/08/14 11:01 upstream 7796916146b8 7a88b141 .config log report
ci-upstream-kasan-gce-root 2018/08/13 21:30 upstream 94710cac0ef4 7a88b141 .config log report
ci-upstream-kasan-gce-root 2018/08/12 13:22 upstream ec0c96714e7d 7a88b141 .config log report
ci-upstream-kasan-gce-root 2018/08/11 03:01 upstream f313b43be461 7a88b141 .config log report
ci-upstream-kasan-gce-root 2018/08/09 06:17 upstream fedb8da96355 2eeda842 .config log report
ci-upstream-kasan-gce-root 2018/08/07 19:07 upstream 1236568ee3cb 1beb8136 .config log report
ci-upstream-kasan-gce-root 2018/08/06 06:50 upstream 1ffaddd029c8 1beb8136 .config log report
ci-upstream-kasan-gce-root 2018/08/05 21:24 upstream a8c199208cd6 1beb8136 .config log report
ci-upstream-kasan-gce-root 2018/08/05 00:07 upstream 0b5b1f9a78b5 3476a2df .config log report
ci-upstream-kasan-gce-root 2018/08/04 19:21 upstream 0b5b1f9a78b5 3476a2df .config log report
ci-upstream-kasan-gce-root 2018/08/04 10:47 upstream 0b5b1f9a78b5 df7f6947 .config log report
ci-upstream-kasan-gce-root 2018/08/04 06:23 upstream 0b5b1f9a78b5 df7f6947 .config log report
ci-upstream-kasan-gce-root 2018/08/04 03:45 upstream 0b5b1f9a78b5 df7f6947 .config log report
ci-upstream-kasan-gce-root 2018/08/03 20:29 upstream 0585df468e8f cc4f6d0a .config log report
ci-upstream-kasan-gce-root 2018/08/03 05:12 upstream e30cb13c5a09 5b7e23bb .config log report
ci-upstream-kasan-gce-root 2018/08/03 02:27 upstream e30cb13c5a09 5b7e23bb .config log report
ci-upstream-kasan-gce-root 2018/08/02 19:41 upstream e30cb13c5a09 5b7e23bb .config log report
ci-upstream-kasan-gce-root 2018/08/02 14:35 upstream 6b4703768268 0a7cf4ec .config log report
ci-upstream-kasan-gce-root 2018/08/02 12:22 upstream 6b4703768268 0a7cf4ec .config log report
ci-upstream-kasan-gce-root 2018/06/13 11:17 upstream f5b7769eb040 27c5f59f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/27 23:49 linux-next bdc5461b23ca 59b57593 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/30 22:25 linux-next 3d18c2437944 938220fd .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/23 17:49 linux-next 455fb5ec1df1 95b5c82b .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/21 20:15 linux-next b0d11efd08e3 95b5c82b .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/21 03:45 linux-next 812667578394 95b5c82b .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/20 22:29 linux-next 812667578394 95b5c82b .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/18 23:34 linux-next d7857ae43dcc de20bcbb .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/18 18:03 linux-next d7857ae43dcc db1858f6 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/17 06:36 linux-next d7857ae43dcc 9ccc1d45 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/14 08:55 linux-next 4e8b38549b50 7a88b141 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/07 04:16 linux-next 8c8399e0a3fb 1beb8136 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/08/05 11:06 linux-next 116b181bb646 3476a2df .config log report