syzbot


KASAN: global-out-of-bounds Read in fb_pad_aligned_buffer
Status: upstream: reported C repro on 2019/12/07 21:58
Reported-by: syzbot+0568d05e486eee0a1ba2@syzkaller.appspotmail.com
First crash: 560d, last: 252d

Cause bisection: introduced by (bisect log) :
commit 2de50e9674fc4ca3c6174b04477f69eb26b4ee31
Author: Russell Currey <ruscur@russell.cc>
Date: Mon Feb 8 04:08:20 2016 +0000

  powerpc/powernv: Remove support for p5ioc2

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: global-out-of-bounds Read in fb_pad_aligned_buffer C inconclusive 6 284d 560d 0/1 upstream: reported C repro on 2019/12/07 22:52
linux-4.19 KASAN: global-out-of-bounds Read in fb_pad_aligned_buffer C done 5 234d 560d 1/1 fixed on 2020/11/28 11:57
Patch testing requests:
Created Duration User Patch Repo Result
2021/03/14 08:56 37m ducheng2@gmail.com upstream OK

Sample crash report:

Crashes (12):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-qemu-upstream 2020/06/25 23:58 upstream 435faf5c c7b4497a .config log report syz C
ci-upstream-kasan-gce-root 2020/04/10 00:47 upstream 5d30bcac a8c6a3f8 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/09 04:26 upstream 9455d25f 1508f453 .config log report syz C
ci-qemu-upstream-386 2020/08/30 19:42 upstream 1127b219 d5a3ae1f .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/21 07:46 linux-next 7ddd09fc bc586918 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/04/11 11:50 upstream ab6f762f a8c6a3f8 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/04/14 18:56 linux-next f19bb13a 3f3c5574 .config log report syz
ci-upstream-kasan-gce-root 2020/10/10 18:05 upstream 6f2f486d 4a77ae0b .config log report info
ci-upstream-kasan-gce-selinux-root 2020/03/14 19:35 upstream 69a4d0ba 749688d2 .config log report
ci-upstream-kasan-gce-root 2020/03/04 10:24 upstream 63623fd4 c88c7b75 .config log report
ci-upstream-kasan-gce-selinux-root 2019/12/07 21:40 upstream ad910e36 1508f453 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/12/10 03:00 linux-next 6cf8298d 4b83c8fb .config log report