syzbot


WARNING in mntput_no_expire (2)
Status: fixed on 2021/11/10 00:50
Reported-by: syzbot+c88a7030da47945a3cc3@syzkaller.appspotmail.com
Fix commit: 7d01ef7585c0 Make sure nd->path.mnt and nd->path.dentry are always valid pointers
First crash: 251d, last: 36d

Cause bisection: introduced by (bisect log) :
commit 73d90386b559d6f4c3c5db5e6bb1b68aae8fd3e7
Author: Damien Le Moal <damien.lemoal@wdc.com>
Date: Thu Jan 28 04:47:27 2021 +0000

  nvme: cleanup zone information initialization

Crash: KASAN: use-after-free Read in chroot_fs_refs (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in mntput_no_expire (3) 6 2d10h 22d 0/22 upstream: reported on 2021/11/15 22:27
upstream WARNING in mntput_no_expire 1 327d 323d 0/22 auto-closed as invalid on 2021/03/16 10:44
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/05 06:54 10m ducheng2@gmail.com upstream report log

Sample crash report:

Crashes (68):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/04/01 07:34 upstream d19cc4bfbff1 6a81331a .config log report syz C WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/07/09 05:15 upstream 3dbdb38e2869 1b20171a .config log report syz WARNING in mntput_no_expire
ci-upstream-linux-next-kasan-gce-root 2021/09/08 22:01 linux-next 999569d59a0a e2776ee4 .config log report syz WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/08/02 13:42 upstream c500bee1c5b2 6c236867 .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce-selinux-root 2021/05/18 23:49 upstream 8ac91e6c6033 a343ba6b .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/29 03:03 upstream acd3d2859453 77e2b668 .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/25 10:19 upstream 2a1d7946fa53 36c88236 .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/05 21:05 upstream 0a50438c8436 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/05 19:33 upstream 0a50438c8436 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/05 13:11 upstream e49d033bddf5 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/04 08:07 upstream 2023a53bdf41 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/02 12:43 upstream 1678e493d530 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/01 18:53 upstream ffd9fb546d49 6a81331a .config log report info WARNING in mntput_no_expire
ci-upstream-kasan-gce 2021/04/01 04:22 upstream d19cc4bfbff1 6a81331a .config log report info WARNING in mntput_no_expire
ci-qemu-upstream-386 2021/06/16 13:22 upstream 94f0b2d4a1d0 c06f97ad .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/28 03:22 bpf 440ffcdd9db4 be531bb4 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/26 07:08 bpf 04f8ef5643bc c1132b49 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/25 21:00 bpf 04f8ef5643bc 4f0000ee .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/22 10:27 bpf 1acfe7c9b44b 55f90bc6 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/18 01:39 bpf 732b74d64704 0c5d9412 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/17 15:23 bpf 732b74d64704 0c5d9412 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/16 23:46 bpf 732b74d64704 0c5d9412 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/10 06:26 bpf 8d6c414cd2fb 838e7e2c .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/10/05 20:28 bpf b0e875bac0fa 0a63fd36 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/09/30 15:10 bpf 79e3445b38e0 be530f6c .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/09/24 00:08 bpf 7c3a00911b3d 8cac236e .config log report info WARNING in mntput_no_expire
ci-upstream-net-this-kasan-gce 2021/09/14 15:24 net 550ac9c1aaaa 07e953c1 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/08/29 13:32 bpf 5b029a32cfe4 be2c130d .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/08/15 04:10 bpf 3776f3517ed9 2489ab88 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/08/12 06:45 bpf 2d3a1e3615c5 6972b106 .config log report info WARNING in mntput_no_expire
ci-upstream-net-this-kasan-gce 2021/07/20 11:18 net 6f20c8adb181 bc48c9ab .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/07/04 17:20 bpf 0fc4dcc13f09 55aa55c2 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-kasan-gce 2021/05/11 00:54 bpf bbd6f0a94813 ca873091 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/11/02 03:41 bpf-next 36e70b9b06bf 098b5d53 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/11/02 01:30 net-next c07c6e8eb4b3 098b5d53 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/27 14:17 bpf-next 20d1b54a52bd 373bf66b .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/10/27 07:14 net-next 06338ceff925 d50eb50a .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/25 02:00 bpf-next c825f5fee19c 282f03fb .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/10/17 19:34 net-next 4e6e167bc049 0c5d9412 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/15 10:01 bpf-next 431bfb9ee3e2 0c5d9412 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/15 03:09 bpf-next 431bfb9ee3e2 7aa5fe41 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/10/07 06:37 net-next bcb2293d8106 62ee0987 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/07 05:07 bpf-next 9d0578722391 62ee0987 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/10/04 13:34 bpf-next 0693b27644f0 ce697b49 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/26 09:35 bpf-next 091037fb770e 8cac236e .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/26 03:10 bpf-next 091037fb770e 8cac236e .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/25 18:27 bpf-next 091037fb770e 8cac236e .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/17 16:12 bpf-next 336562752acc 5b989942 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/09/17 10:44 net-next 561bed688bff 5b989942 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/16 18:35 bpf-next 336562752acc aae492f2 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/14 14:32 bpf-next 14bef1ab3037 58d09404 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/12 00:54 bpf-next 3384c7c7641b 5ae8508a .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/09/02 01:02 bpf-next a16ef91aa61a 7eb7e152 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/08/29 18:58 bpf-next 47bb27a20d6e be2c130d .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/08/27 09:57 bpf-next 48b2e71c2e53 b318694d .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/08/22 14:51 bpf-next f2a6ee924d26 b599f2fc .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/08/12 02:45 bpf-next 25dc3895baaa 6972b106 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/08/10 10:46 net-next 2a2b6e3640c4 6972b106 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/08/04 02:53 bpf-next 83f31535565c 6c236867 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/07/31 04:40 bpf-next f309b4ba989d 6c236867 .config log report info WARNING in mntput_no_expire
ci-upstream-bpf-next-kasan-gce 2021/07/25 21:43 bpf-next 2b7e9f25e590 4d1b57d4 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/07/04 14:21 net-next 5e437416ff66 55aa55c2 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/06/24 00:22 net-next a7b62112f0ab fe4ab389 .config log report info WARNING in mntput_no_expire
ci-upstream-net-kasan-gce 2021/06/19 17:25 net-next 4bea7207a80c aba2b2fb .config log report info WARNING in mntput_no_expire
ci-upstream-linux-next-kasan-gce-root 2021/05/04 23:22 linux-next 9a9aa07ae18b 06c27ff5 .config log report info WARNING in mntput_no_expire
ci-upstream-linux-next-kasan-gce-root 2021/04/10 11:21 linux-next e99d8a849517 bfeda1b1 .config log report info WARNING in mntput_no_expire
ci-upstream-linux-next-kasan-gce-root 2021/04/08 13:02 linux-next 6145d80cfc62 6a81331a .config log report info WARNING in mntput_no_expire