BUG: corrupted list in p9_fd

Date	Name	Commit	Repro	Result
2024/11/09	linux-5.15.y (ToT)	3c17fc483905	syz	[report] BUG: corrupted list in p9_fd_cancelled
2024/11/09	upstream (ToT)	da4373fbcf00	syz	Didn't crash

Date

Name

Commit

Repro

Result

2024/11/09

linux-5.15.y (ToT)

3c17fc483905

syz

[report] BUG: corrupted list in p9_fd_cancelled

2024/11/09

upstream (ToT)

da4373fbcf00

syz

Didn't crash

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-5-10	BUG: corrupted list in p9_fd_cancelled	8				1	1604d	1604d	0/2	closed as invalid on 2022/03/01 11:24
upstream	BUG: corrupted list in p9_fd_cancelled (2) v9fs	8	syz	error	error	273	778d	2433d	0/29	auto-obsoleted due to no activity on 2024/06/03 04:59
linux-5.15	BUG: corrupted list in p9_fd_cancelled (2)	8				4	879d	965d	0/3	auto-obsoleted due to no activity on 2024/03/09 04:25
linux-4.14	BUG: corrupted list in p9_fd_cancelled	8	syz		done	2	2338d	2383d	1/1	fixed on 2020/01/03 09:37
android-6-1	BUG: corrupted list in p9_fd_cancelled	8				27	705d	1077d	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)	8				3	1477d	1513d	0/2	auto-closed as invalid on 2022/07/10 10:51
android-6-1	BUG: corrupted list in p9_fd_cancelled (2)	8	syz		error	14	240d	604d	0/2	auto-obsoleted due to no activity on 2025/11/28 05:57
android-54	BUG: corrupted list in p9_fd_cancelled	8				3	1765d	1974d	0/2	auto-closed as invalid on 2021/10/25 12:29
linux-4.19	BUG: corrupted list in p9_fd_cancelled	8	syz		done	2	2357d	2420d	1/1	fixed on 2019/12/18 17:42
linux-6.1	BUG: corrupted list in p9_fd_cancelled	8				56	759d	1143d	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)	8				1	589d	589d	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	8	syz	done	error	30	459d	1184d	0/2	auto-obsoleted due to no activity on 2025/04/23 20:43
upstream	BUG: corrupted list in p9_fd_cancelled v9fs	8				16	2741d	2842d	0/29	auto-closed as invalid on 2019/04/23 06:51
android-5-15	BUG: corrupted list in p9_fd_cancelled (2)	8				1	335d	335d	0/2	auto-obsoleted due to no activity on 2025/08/25 13:49
linux-4.19	BUG: corrupted list in p9_fd_cancelled (3)	8				1	1573d	1573d	0/1	auto-closed as invalid on 2022/05/05 22:32
linux-5.15	BUG: corrupted list in p9_fd_cancelled	8				1	1129d	1129d	0/3	auto-obsoleted due to no activity on 2023/07/23 04:06
android-54	BUG: corrupted list in p9_fd_cancelled (2)	8	syz			25	752d	1616d	0/2	auto-obsoleted due to no activity on 2024/07/14 15:48
upstream	BUG: corrupted list in p9_fd_cancelled (3) v9fs	8				16	270d	590d	0/29	auto-obsoleted due to no activity on 2025/11/08 17:53
android-5-10	BUG: corrupted list in p9_fd_cancelled (4)	8				4	580d	689d	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)	8				1	1186d	1186d	0/1	upstream: reported on 2023/01/27 06:50
linux-4.19	BUG: corrupted list in p9_fd_cancelled (2)	8				1	1887d	1887d	0/1	auto-closed as invalid on 2021/06/25 15:45
android-5-10	BUG: corrupted list in p9_fd_cancelled (3)	8	C	done	unreliable	38	820d	905d	0/2	auto-obsoleted due to no activity on 2024/05/07 18:52

Created	Duration	User	Patch	Repo	Result
2025/01/18 19:01	18m	retest repro		linux-5.15.y	OK log
2024/10/27 17:26	16m	retest repro		linux-5.15.y	report log

Created

Duration

User

Patch

Repo

Result

2025/01/18 19:01

18m

retest repro

linux-5.15.y

OK log

2024/10/27 17:26

16m

retest repro

linux-5.15.y

report log

list_del corruption, ffff888020a28ab0->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: 4199 Comm: syz.4.94 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid+0xe5/0x120 lib/list_debug.c:53 Code: 4c 89 f6 e8 5d 2c 25 06 0f 0b 48 c7 c7 40 08 d9 8a 4c 89 f6 e8 4c 2c 25 06 0f 0b 48 c7 c7 a0 08 d9 8a 4c 89 f6 e8 3b 2c 25 06 <0f> 0b 48 c7 c7 00 09 d9 8a 4c 89 f6 e8 2a 2c 25 06 0f 0b 48 c7 c7 RSP: 0018:ffffc90004c3f510 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000100 RCX: e8aa61728d640100 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffff888020a28a00 R08: ffffffff81668a3c R09: ffffed10172067a8 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88805cdaa800 R14: ffff888020a28ab0 R15: dead000000000122 FS: 00007f817f62b6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002008c030 CR3: 0000000074f14000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry include/linux/list.h:132 [inline] list_del include/linux/list.h:146 [inline] p9_fd_cancelled+0x95/0x220 net/9p/trans_fd.c:736 p9_client_flush+0x392/0x570 net/9p/client.c:681 p9_client_rpc+0xb35/0x1290 net/9p/client.c:788 p9_client_create+0x9b4/0x1000 net/9p/client.c:1056 v9fs_session_init+0x1fe/0x1910 fs/9p/v9fs.c:409 v9fs_mount+0x72/0x860 fs/9p/vfs_super.c:126 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1528 do_new_mount+0x2ba/0xb40 fs/namespace.c:3005 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f818040dff9 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:00007f817f62b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f81805c6208 RCX: 00007f818040dff9 RDX: 0000000020000400 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f8180480296 R08: 0000000020000280 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f81805c6208 R15: 00007ffd2e4b85e8 </TASK> Modules linked in: ---[ end trace 33acfdb6a0bfe629 ]--- RIP: 0010:__list_del_entry_valid+0xe5/0x120 lib/list_debug.c:53 Code: 4c 89 f6 e8 5d 2c 25 06 0f 0b 48 c7 c7 40 08 d9 8a 4c 89 f6 e8 4c 2c 25 06 0f 0b 48 c7 c7 a0 08 d9 8a 4c 89 f6 e8 3b 2c 25 06 <0f> 0b 48 c7 c7 00 09 d9 8a 4c 89 f6 e8 2a 2c 25 06 0f 0b 48 c7 c7 RSP: 0018:ffffc90004c3f510 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000100 RCX: e8aa61728d640100 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffff888020a28a00 R08: ffffffff81668a3c R09: ffffed10172067a8 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88805cdaa800 R14: ffff888020a28ab0 R15: dead000000000122 FS: 00007f817f62b6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002008c030 CR3: 0000000074f14000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/10/13 07:17	linux-5.15.y	3a5928702e71	084d8178	.config	console log	report	syz / log			[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	BUG: corrupted list in p9_fd_cancelled
2024/09/11 14:52	linux-5.15.y	14e468424d3e	8ab55d0e	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan-arm64	BUG: corrupted list in p9_fd_cancelled

Crashes (2):

Assets (help?)