syzbot


BUG: corrupted list in p9_fd_cancelled (2)

Status: upstream: reported syz repro on 2021/11/23 15:00
Reported-by: syzbot+6c5973e636aa01c648cd@syzkaller.appspotmail.com
First crash: 870d, last: 6d21h
Similar bugs (16)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 BUG: corrupted list in p9_fd_cancelled 1 859d 859d 0/2 closed as invalid on 2022/03/01 11:24
upstream BUG: corrupted list in p9_fd_cancelled (2) v9fs syz error error 273 32d 1688d 0/26 upstream: reported syz repro on 2019/08/29 03:58
linux-5.15 BUG: corrupted list in p9_fd_cancelled (2) 4 134d 219d 0/3 auto-obsoleted due to no activity on 2024/03/09 04:25
linux-4.14 BUG: corrupted list in p9_fd_cancelled syz done 2 1592d 1638d 1/1 fixed on 2020/01/03 09:37
android-6-1 BUG: corrupted list in p9_fd_cancelled 25 50d 331d 0/2 premoderation: reported on 2023/05/16 17:03
android-5-10 BUG: corrupted list in p9_fd_cancelled (2) 3 732d 767d 0/2 auto-closed as invalid on 2022/07/10 10:51
android-54 BUG: corrupted list in p9_fd_cancelled 3 1020d 1228d 0/2 auto-closed as invalid on 2021/10/25 12:29
linux-4.19 BUG: corrupted list in p9_fd_cancelled syz done 2 1612d 1675d 1/1 fixed on 2019/12/18 17:42
linux-6.1 BUG: corrupted list in p9_fd_cancelled 56 13d 397d 0/3 upstream: reported on 2023/03/12 02:32
android-5-15 BUG: corrupted list in p9_fd_cancelled origin:upstream missing-backport syz done 28 5d08h 439d 0/2 premoderation: reported syz repro on 2023/01/29 05:13
upstream BUG: corrupted list in p9_fd_cancelled v9fs 16 1996d 2096d 0/26 auto-closed as invalid on 2019/04/23 06:51
linux-4.19 BUG: corrupted list in p9_fd_cancelled (3) 1 827d 827d 0/1 auto-closed as invalid on 2022/05/05 22:32
linux-5.15 BUG: corrupted list in p9_fd_cancelled 1 384d 384d 0/3 auto-obsoleted due to no activity on 2023/07/23 04:06
linux-4.19 BUG: corrupted list in p9_fd_cancelled (4) 1 441d 441d 0/1 upstream: reported on 2023/01/27 06:50
linux-4.19 BUG: corrupted list in p9_fd_cancelled (2) 1 1141d 1141d 0/1 auto-closed as invalid on 2021/06/25 15:45
android-5-10 BUG: corrupted list in p9_fd_cancelled (3) C done unreliable 38 74d 159d 0/2 upstream: reported C repro on 2023/11/04 18:14
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/04/05 15:05 11m retest repro android12-5.4 report log
2024/04/05 15:05 11m retest repro android12-5.4 OK log
2024/01/26 07:19 10m retest repro android12-5.4 report log
2024/01/26 07:19 10m retest repro android12-5.4 report log
2024/01/26 05:55 13m retest repro android12-5.4 OK log
2024/01/26 05:55 17m retest repro android12-5.4 OK log
2023/12/20 17:33 31m retest repro android12-5.4 OK log
2023/11/17 05:02 20m retest repro android12-5.4 OK log
2023/11/17 05:02 19m retest repro android12-5.4 report log
2023/11/17 05:02 19m retest repro android12-5.4 report log

Sample crash report:
list_del corruption, ffff8881ecf742f0->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:55!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1119 Comm: syz-executor.5 Not tainted 5.4.254-syzkaller-00011-g2ac128c04e33 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__list_del_entry_valid+0xe5/0x120 lib/list_debug.c:53
Code: 4c 89 f6 e8 9c af 1d 02 0f 0b 48 c7 c7 80 3c fa 84 4c 89 f6 e8 8b af 1d 02 0f 0b 48 c7 c7 e0 3c fa 84 4c 89 f6 e8 7a af 1d 02 <0f> 0b 48 c7 c7 40 3d fa 84 4c 89 f6 e8 69 af 1d 02 0f 0b 48 c7 c7
RSP: 0018:ffff8881e4e1f478 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 1de9a5b551d76a00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 0000000000000005 R08: ffffffff814d6752 R09: ffffed103edca9b8
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881ecf74270 R14: ffff8881ecf742f0 R15: dead000000000122
FS:  00007f65c76a26c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00137e000 CR3: 00000001e8549000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:131 [inline]
 list_del include/linux/list.h:139 [inline]
 p9_fd_cancelled+0x72/0x1b0 net/9p/trans_fd.c:725
 p9_client_flush+0x392/0x570 net/9p/client.c:677
 p9_client_rpc+0xae0/0x1410 net/9p/client.c:784
 p9_client_version net/9p/client.c:942 [inline]
 p9_client_create+0x9be/0x11a0 net/9p/client.c:1052
 v9fs_session_init+0x1fa/0x19b0 fs/9p/v9fs.c:406
 v9fs_mount+0x72/0x770 fs/9p/vfs_super.c:124
 legacy_get_tree+0xdf/0x170 fs/fs_context.c:648
 vfs_get_tree+0x85/0x260 fs/super.c:1556
 do_new_mount+0x292/0x570 fs/namespace.c:2843
 do_mount+0x688/0xe10 fs/namespace.c:3163
 ksys_mount+0xc2/0xf0 fs/namespace.c:3372
 __do_sys_mount fs/namespace.c:3386 [inline]
 __se_sys_mount fs/namespace.c:3383 [inline]
 __x64_sys_mount+0xb1/0xc0 fs/namespace.c:3383
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 83214c06d88bb1b1 ]---
RIP: 0010:__list_del_entry_valid+0xe5/0x120 lib/list_debug.c:53
Code: 4c 89 f6 e8 9c af 1d 02 0f 0b 48 c7 c7 80 3c fa 84 4c 89 f6 e8 8b af 1d 02 0f 0b 48 c7 c7 e0 3c fa 84 4c 89 f6 e8 7a af 1d 02 <0f> 0b 48 c7 c7 40 3d fa 84 4c 89 f6 e8 69 af 1d 02 0f 0b 48 c7 c7
RSP: 0018:ffff8881e4e1f478 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 1de9a5b551d76a00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 0000000000000005 R08: ffffffff814d6752 R09: ffffed103edca9b8
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881ecf74270 R14: ffff8881ecf742f0 R15: dead000000000122
FS:  00007f65c76a26c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00137e000 CR3: 00000001e8549000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (25):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/11/01 18:22 android12-5.4 2ac128c04e33 69904c9f .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/11/24 16:58 android12-5.4 2ac128c04e33 5b429f39 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/11/03 04:44 android12-5.4 2ac128c04e33 c4ac074c .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/08/22 20:36 android12-5.4 a14f43f0b97d b81ca3f6 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/07/19 05:09 android12-5.4 14e059a4e07a 022df2bb .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/03/11 19:29 android12-5.4 250ac66f1853 5205ef30 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2024/03/13 02:20 android12-5.4 43a5ead9254d c35c26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/12/06 17:14 android12-5.4 1303f659c2b1 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/11/03 04:12 android12-5.4 2ac128c04e33 c4ac074c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/09/27 12:55 android12-5.4 a1b9dbe5628a 2895a507 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/06/10 12:40 android12-5.4 10e0626a3202 49519f06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/05/07 11:47 android12-5.4 0fcb7cff9462 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/05/01 03:40 android12-5.4 d5ed2ca98e48 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/04/02 05:01 android12-5.4 09417023d02f f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/02/21 14:08 android12-5.4 9f5083e5fbb0 f949448d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2023/01/20 06:47 android12-5.4 a0eae55f26a0 71197f3a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/12/20 11:18 android12-5.4 a76dfbc99260 c52b2efb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/12/14 19:57 android12-5.4 a76dfbc99260 b18f0a64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/09/18 21:39 android12-5.4 f3665979a8e7 dd9a85ff .config console log report info [disk image] [vmlinux] ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/09/12 12:40 android12-5.4 704c7d053806 356d8217 .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/06/07 08:57 android12-5.4 7dee356a61d0 c8857892 .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2022/03/18 18:53 android12-5.4 49216514f3a3 e2d91b1d .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2021/12/04 03:28 android12-5.4 97b7ffb32f29 a617004c .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2021/11/29 05:04 android12-5.4 0bbc71d87f4d 63eeac02 .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
2021/11/23 15:00 android12-5.4 697fba25ed27 545ab074 .config console log report info ci2-android-5-4-kasan BUG: corrupted list in p9_fd_cancelled
* Struck through repros no longer work on HEAD.