syzbot


BUG: corrupted list in p9_fd_cancelled (3)

Status: upstream: reported on 2024/09/14 04:00
Subsystems: v9fs
[Documentation on labels]
Reported-by: syzbot+15a08eabe3d3838fb641@syzkaller.appspotmail.com
First crash: 283d, last: 27d
Discussions (5)
Title Replies (including bot) Last reply
[syzbot] Monthly v9fs report (Mar 2025) 0 (1) 2025/03/04 15:15
[syzbot] Monthly v9fs report (Jan 2025) 0 (1) 2025/01/02 13:21
[syzbot] Monthly v9fs report (Dec 2024) 0 (1) 2024/12/02 10:25
[syzbot] Monthly v9fs report (Oct 2024) 0 (1) 2024/10/31 09:10
[syzbot] [v9fs?] BUG: corrupted list in p9_fd_cancelled (3) 0 (1) 2024/09/14 04:00
Similar bugs (21)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 BUG: corrupted list in p9_fd_cancelled 1 1208d 1208d 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 382d 2038d 0/28 auto-obsoleted due to no activity on 2024/06/03 04:59
linux-5.15 BUG: corrupted list in p9_fd_cancelled (2) 4 484d 569d 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 1942d 1988d 1/1 fixed on 2020/01/03 09:37
android-6-1 BUG: corrupted list in p9_fd_cancelled 27 309d 681d 0/2 auto-obsoleted due to no activity on 2024/08/20 17:39
android-5-10 BUG: corrupted list in p9_fd_cancelled (2) 3 1081d 1117d 0/2 auto-closed as invalid on 2022/07/10 10:51
android-6-1 BUG: corrupted list in p9_fd_cancelled (2) syz error 10 6d11h 209d 0/2 premoderation: reported syz repro on 2024/08/31 06:31
android-54 BUG: corrupted list in p9_fd_cancelled 3 1369d 1578d 0/2 auto-closed as invalid on 2021/10/25 12:29
linux-5.15 BUG: corrupted list in p9_fd_cancelled (3) origin:lts-only syz 2 138d 197d 0/3 auto-obsoleted due to no activity on 2025/02/17 18:13
linux-4.19 BUG: corrupted list in p9_fd_cancelled syz done 2 1962d 2025d 1/1 fixed on 2019/12/18 17:42
linux-6.1 BUG: corrupted list in p9_fd_cancelled 56 363d 747d 0/3 auto-obsoleted due to no activity on 2024/07/04 11:58
linux-6.1 BUG: corrupted list in p9_fd_cancelled (2) 1 193d 193d 0/3 auto-obsoleted due to no activity on 2024/12/24 10:47
android-5-15 BUG: corrupted list in p9_fd_cancelled origin:upstream missing-backport syz done error 30 63d 789d 0/2 premoderation: reported syz repro on 2023/01/29 05:13
upstream BUG: corrupted list in p9_fd_cancelled v9fs 16 2346d 2446d 0/28 auto-closed as invalid on 2019/04/23 06:51
linux-4.19 BUG: corrupted list in p9_fd_cancelled (3) 1 1177d 1177d 0/1 auto-closed as invalid on 2022/05/05 22:32
linux-5.15 BUG: corrupted list in p9_fd_cancelled 1 734d 734d 0/3 auto-obsoleted due to no activity on 2023/07/23 04:06
android-54 BUG: corrupted list in p9_fd_cancelled (2) syz 25 356d 1220d 0/2 auto-obsoleted due to no activity on 2024/07/14 15:48
android-5-10 BUG: corrupted list in p9_fd_cancelled (4) 4 184d 294d 0/2 auto-obsoleted due to no activity on 2024/12/24 01:20
linux-4.19 BUG: corrupted list in p9_fd_cancelled (4) 1 791d 791d 0/1 upstream: reported on 2023/01/27 06:50
linux-4.19 BUG: corrupted list in p9_fd_cancelled (2) 1 1491d 1491d 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 424d 509d 0/2 auto-obsoleted due to no activity on 2024/05/07 18:52

Sample crash report:
 non-paged memory
list_del corruption, ffff888033d46fa0->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 23995 Comm: syz.0.6332 Not tainted 6.14.0-rc4-syzkaller-00220-g5c44ddaf7df3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__list_del_entry_valid_or_report+0x10f/0x190 lib/list_debug.c:56
Code: a0 1f 80 8c 4c 89 fe e8 3f a1 32 fc 90 0f 0b 48 89 df e8 34 8d 10 fd 48 c7 c7 00 20 80 8c 4c 89 fe 48 89 da e8 22 a1 32 fc 90 <0f> 0b 48 89 df e8 17 8d 10 fd 48 c7 c7 60 20 80 8c 4c 89 fe 48 89
RSP: 0018:ffffc90003b2f708 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 850384bf9d1f6500
RDX: ffffc900179b2000 RSI: 0000000000008cc8 RDI: 0000000000008cc9
RBP: ffff888033d46ee0 R08: ffffffff81a114dc R09: fffffbfff1d3a614
R10: dffffc0000000000 R11: fffffbfff1d3a614 R12: dead000000000122
R13: dffffc0000000000 R14: dead000000000100 R15: ffff888033d46fa0
FS:  00007fd291b436c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6cfc33971c CR3: 000000007bd2e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 p9_fd_cancelled+0x99/0x220 net/9p/trans_fd.c:736
 p9_client_flush+0x3c2/0x540 net/9p/client.c:618
 p9_client_rpc+0x8d4/0xac0 net/9p/client.c:741
 p9_client_stat+0x10e/0x280 net/9p/client.c:1741
 v9fs_inode_from_fid+0x82/0x550 fs/9p/vfs_inode.c:456
 v9fs_get_new_inode_from_fid fs/9p/v9fs.h:253 [inline]
 v9fs_mount+0x6fe/0xa90 fs/9p/vfs_super.c:142
 legacy_get_tree+0xee/0x190 fs/fs_context.c:662
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd290d8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd291b43038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd290fa5fa0 RCX: 00007fd290d8d169
RDX: 00004000000002c0 RSI: 0000400000000080 RDI: 0000000000000000
RBP: 00007fd290e0e2a0 R08: 0000400000000400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd290fa5fa0 R15: 00007ffe29140c88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x10f/0x190 lib/list_debug.c:56
Code: a0 1f 80 8c 4c 89 fe e8 3f a1 32 fc 90 0f 0b 48 89 df e8 34 8d 10 fd 48 c7 c7 00 20 80 8c 4c 89 fe 48 89 da e8 22 a1 32 fc 90 <0f> 0b 48 89 df e8 17 8d 10 fd 48 c7 c7 60 20 80 8c 4c 89 fe 48 89
RSP: 0018:ffffc90003b2f708 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 850384bf9d1f6500
RDX: ffffc900179b2000 RSI: 0000000000008cc8 RDI: 0000000000008cc9
RBP: ffff888033d46ee0 R08: ffffffff81a114dc R09: fffffbfff1d3a614
R10: dffffc0000000000 R11: fffffbfff1d3a614 R12: dead000000000122
R13: dffffc0000000000 R14: dead000000000100 R15: ffff888033d46fa0
FS:  00007fd291b436c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6cfc33971c CR3: 000000007bd2e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (12):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/03/01 06:20 upstream 5c44ddaf7df3 1e7a43e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: corrupted list in p9_fd_cancelled
2024/12/28 02:33 upstream 8379578b11d5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: corrupted list in p9_fd_cancelled
2024/12/28 02:32 upstream 8379578b11d5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: corrupted list in p9_fd_cancelled
2024/11/06 15:39 upstream 2e1b3cc9d7f7 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: corrupted list in p9_fd_cancelled
2024/10/19 12:28 upstream 3d5ad2d4eca3 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: corrupted list in p9_fd_cancelled
2024/10/08 09:44 upstream 87d6aab2389e 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in p9_fd_cancelled
2024/09/14 03:59 upstream e936e7d4a83b 158f4851 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in p9_fd_cancelled
2024/09/08 14:38 upstream d1f2d51b711a 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in p9_fd_cancelled
2024/08/27 01:39 upstream 5be63fc19fca 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in p9_fd_cancelled
2024/08/27 01:39 upstream 5be63fc19fca 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in p9_fd_cancelled
2024/06/18 02:30 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: corrupted list in p9_fd_cancelled
2024/11/22 11:56 linux-next cfba9f07a1d6 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: corrupted list in p9_fd_cancelled
* Struck through repros no longer work on HEAD.