syzbot


KASAN: null-ptr-deref Write in bdi_put
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+aded2f2ab94d81727898@syzkaller.appspotmail.com
Fix commit: 2d2f6f1b4799 block: pre-initialize struct block_device in bdev_alloc_inode
First crash: 362d, last: 326d

Cause bisection: introduced by (bisect log) :
commit 4d004099a668c41522242aa146a38cc4eb59cb1e
Author: Peter Zijlstra <peterz@infradead.org>
Date: Fri Oct 2 09:04:21 2020 +0000

  lockdep: Fix lockdep recursion

Crash: BUG: using __this_cpu_read() in preemptible code in trace_hardirqs_on (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit 2d2f6f1b4799428d160c021dd652bc3e3593945e
Author: Christoph Hellwig <hch@lst.de>
Date: Thu Jan 7 18:36:40 2021 +0000

  block: pre-initialize struct block_device in bdev_alloc_inode


Sample crash report:

Crashes (601):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/01/07 20:11 upstream 71c061d24438 c104d4a3 .config log report syz C
ci-upstream-kasan-gce-root 2021/01/07 02:05 upstream 9f1abbe97c08 c104d4a3 .config log report syz C
ci-upstream-kasan-gce-root 2021/01/05 20:45 upstream 36bbbd0e234d a0234d98 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/01/05 09:30 upstream 36bbbd0e234d 2a28ff1f .config log report syz C
ci-upstream-kasan-gce-root 2021/01/04 07:06 upstream e71ba9452f0b 79264ae3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/01/02 06:47 upstream eda809aef534 79264ae3 .config log report syz C
ci-upstream-kasan-gce-root 2020/12/30 08:03 upstream 139711f033f6 0fa352f2 .config log report syz C
ci-upstream-kasan-gce-root 2020/12/30 00:01 upstream dea8dcf2a9fa 80910769 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/25 19:46 upstream 71c5f03154ac b982b3ea .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/01/11 01:28 linux-next 1c925d2030af 2c1f2513 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/01/07 14:14 linux-next 2d3811a4fb23 c104d4a3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/01/04 00:52 linux-next d7a03a44a5e9 79264ae3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/01/02 01:49 linux-next d7a03a44a5e9 79264ae3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/30 12:24 linux-next d7a03a44a5e9 0fa352f2 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/29 09:33 linux-next d7a03a44a5e9 8259d56c .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/21 10:21 linux-next 4c6ed015c2a5 04201c06 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/15 02:58 linux-next 14240d4c5b25 97183ed7 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/14 07:32 linux-next 14240d4c5b25 b22a7ec3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/12/08 04:35 linux-next 15ac8fdb7440 51a9082e .config log report syz C
ci-upstream-kasan-gce-root 2021/01/11 10:26 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/11 07:08 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/11 04:05 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 02:30 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/10 20:53 upstream 2ff90100ace8 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/10 14:13 upstream 2ff90100ace8 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/10 04:56 upstream 996e435fd401 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/10 01:13 upstream 996e435fd401 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/09 22:53 upstream 996e435fd401 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/09 22:04 upstream 996e435fd401 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/09 19:50 upstream 996e435fd401 2c1f2513 .config log report info
ci-qemu-upstream 2021/01/09 17:43 upstream 996e435fd401 a6c52263 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/09 02:23 upstream 6279d812eab6 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/09 01:05 upstream 6279d812eab6 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 19:19 upstream f5e6c330254a c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 11:25 upstream f5e6c330254a c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 09:13 upstream f5e6c330254a c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 07:30 upstream f5e6c330254a c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/08 06:04 upstream f5e6c330254a c104d4a3 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/07 19:43 upstream 71c061d24438 c104d4a3 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/07 19:42 upstream 71c061d24438 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/07 16:22 upstream 71c061d24438 c104d4a3 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/07 15:14 upstream 71c061d24438 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/07 06:21 upstream 9f1abbe97c08 c104d4a3 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/07 00:47 upstream 9f1abbe97c08 c104d4a3 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/06 23:43 upstream 9f1abbe97c08 c104d4a3 .config log report info
ci-upstream-kasan-gce-root 2021/01/06 07:57 upstream 6207214a70bf b1c228e1 .config log report info
ci-qemu-upstream-386 2020/12/31 23:11 upstream f6e1ea196492 79264ae3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/12 05:29 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/12 04:11 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/12 03:10 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/11 22:06 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/11 19:23 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/11 11:28 linux-next ef8b014ee4a1 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/10 23:09 linux-next 1c925d2030af 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/10 03:38 linux-next 1c925d2030af 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/10 02:37 linux-next 1c925d2030af 2c1f2513 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/09 13:28 linux-next 1c925d2030af a6c52263 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/08 22:28 linux-next 1c925d2030af c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/07 23:30 linux-next 2d3811a4fb23 c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/07 03:44 linux-next 7e4525a4232f c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/06 22:10 linux-next 7e4525a4232f c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/06 18:00 linux-next 7e4525a4232f c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/06 10:42 linux-next 7e4525a4232f b1c228e1 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/01/06 08:59 linux-next 7e4525a4232f b1c228e1 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/07 12:39 linux-next 15ac8fdb7440 1190297f .config log report info