syzbot


KASAN: use-after-free Read in nfc_llcp_sock_unlink
Status: upstream: reported C repro on 2021/03/29 15:43
Reported-by: syzbot+8b7c5fc0cfb74afee8d1@syzkaller.appspotmail.com
First crash: 28d, last: 1d10h

Cause bisection: introduced by (bisect log) :
commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland@arm.com>
Date: Mon Jan 11 15:37:07 2021 +0000

  lockdep: report broken irq restoration

Crash: WARNING in kvm_wait (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Read in nfc_llcp_sock_unlink syz 2 5d17h 5d23h 0/1 upstream: reported syz repro on 2021/04/17 16:59
linux-4.19 KASAN: use-after-free Read in nfc_llcp_sock_unlink C 7 1d20h 9d09h 0/1 upstream: reported C repro on 2021/04/14 07:15
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/03 01:08 10m tseewald@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git master report log

Sample crash report:

Crashes (50):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/04/21 13:00 net d83b8aa5 95777977 .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/15 04:30 net 00423969 fcdb12ba .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/14 15:14 net 2afeec08 3134b37f .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/03/26 09:47 net 75887e88 6a383ecf .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-kasan-gce 2021/04/15 04:43 net-next 652d3be2 fcdb12ba .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-kasan-gce 2021/04/14 13:32 net-next 5871d0c6 3134b37f .config log report syz C KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/22 04:10 upstream 16fc44d6 2bc8999a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/21 19:54 upstream 16fc44d6 95777977 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/21 04:51 upstream 1fe5501b c0ced557 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-selinux-root 2021/04/20 13:22 upstream 7af08140 c0ced557 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/20 02:52 upstream 7af08140 4285c989 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-root 2021/04/20 01:16 upstream 7af08140 4285c989 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-smack-root 2021/04/19 23:34 upstream 7af08140 4285c989 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-selinux-root 2021/04/19 10:02 upstream bf05bf16 50f523d7 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/19 03:28 upstream bf05bf16 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-root 2021/04/17 20:48 upstream 194cf482 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/16 21:33 upstream 2f7b98d1 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/16 00:02 upstream 7e25f40e c59079a6 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-selinux-root 2021/04/14 22:35 upstream 7f75285c fcdb12ba .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-selinux-root 2021/04/14 15:58 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/14 13:27 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-selinux-root 2021/04/14 12:06 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/14 00:48 upstream eebe426d a184b83e .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream 2021/04/13 11:39 upstream 89698bec bfeda1b1 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-smack-root 2021/04/12 14:35 upstream d434405a bfeda1b1 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-kasan-gce-smack-root 2021/04/12 13:57 upstream d434405a bfeda1b1 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/22 06:41 upstream 16fc44d6 2bc8999a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/20 08:46 upstream 7af08140 c0ced557 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/19 23:41 upstream 7af08140 4285c989 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/19 02:21 upstream 5ffe04cc 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/17 07:25 upstream 9cdbf646 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/16 16:44 upstream 2f7b98d1 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/16 13:33 upstream 7e25f40e 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/14 14:24 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/14 13:50 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-qemu-upstream-386 2021/04/14 10:26 upstream 50987bec 3134b37f .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/18 12:10 net 88a5af94 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/09 20:55 net 27f0ad71 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/08 03:43 net 5219d601 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/04 18:18 net a14d273b 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/03 12:55 net 990b03b0 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/04/01 11:05 net d47ec7a0 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/03/26 08:03 net 75887e88 6a383ecf .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-this-kasan-gce 2021/03/26 07:34 net 75887e88 6a383ecf .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-kasan-gce 2021/04/19 22:28 net-next e7ad33fa 4285c989 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-kasan-gce 2021/04/19 02:17 net-next e7ad33fa 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-net-kasan-gce 2021/04/18 20:38 net-next e7ad33fa 7e2b734b .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-linux-next-kasan-gce-root 2021/04/19 12:41 linux-next 1216f02e 50f523d7 .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-linux-next-kasan-gce-root 2021/04/09 18:15 linux-next e99d8a84 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink
ci-upstream-linux-next-kasan-gce-root 2021/04/04 18:10 linux-next 454c576c 6a81331a .config log report info KASAN: use-after-free Read in nfc_llcp_sock_unlink