list_del corruption, ffff88812459d6b8->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: 16072 Comm: syz-executor494 Not tainted 5.15.79-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__list_del_entry_valid+0xf4/0x130 lib/list_debug.c:53
Code: 6b 80 13 02 0f 0b 48 c7 c7 00 ce 05 85 4c 89 f6 31 c0 e8 58 80 13 02 0f 0b 48 c7 c7 60 ce 05 85 4c 89 f6 31 c0 e8 45 80 13 02 <0f> 0b 48 c7 c7 c0 ce 05 85 4c 89 f6 31 c0 e8 32 80 13 02 0f 0b 48
RSP: 0018:ffffc90002407528 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 57a28e4909713d00
RDX: 1ffff92000480e6c RSI: ffffffff8505ca00 RDI: 0000000000000001
RBP: ffffc90002407548 R08: dffffc0000000000 R09: ffffed103ee465a0
R10: ffffed103ee465a0 R11: 1ffff1103ee4659f R12: dffffc0000000000
R13: ffff88812459d640 R14: ffff88812459d6b8 R15: dead000000000122
FS:  00007fafd4b62700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe39b7e7c0 CR3: 000000012196d000 CR4: 00000000003506b0
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_cancel+0x55/0x1d0 net/9p/trans_fd.c:700
 p9_client_rpc+0x361/0x900 net/9p/client.c:778
 p9_client_version+0x168/0x5c0
 p9_client_create+0x786/0xa20 net/9p/client.c:1047
 v9fs_session_init+0x1e9/0x1500 fs/9p/v9fs.c:409
 v9fs_mount+0x70/0x750 fs/9p/vfs_super.c:126
 legacy_get_tree+0xe7/0x180 fs/fs_context.c:610
 vfs_get_tree+0x7e/0x220 fs/super.c:1499
 do_new_mount+0x1df/0x930 fs/namespace.c:2994
 path_mount+0x677/0xd00 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x24a/0x2e0 fs/namespace.c:3522
 __x64_sys_mount+0xba/0xd0 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fafd4bb10c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fafd4b62278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fafd4c3a4c0 RCX: 00007fafd4bb10c9
RDX: 0000000020000200 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007fafd4c071d4 R08: 0000000020000380 R09: 65732f636f72702f
R10: 0000000000000000 R11: 0000000000000246 R12: 0031656c69662f2e
R13: 00007fafd4b62280 R14: 64663d736e617274 R15: 00007fafd4c3a4c8
 </TASK>
Modules linked in:
---[ end trace f9c38cabff9b9b07 ]---
RIP: 0010:__list_del_entry_valid+0xf4/0x130 lib/list_debug.c:53
Code: 6b 80 13 02 0f 0b 48 c7 c7 00 ce 05 85 4c 89 f6 31 c0 e8 58 80 13 02 0f 0b 48 c7 c7 60 ce 05 85 4c 89 f6 31 c0 e8 45 80 13 02 <0f> 0b 48 c7 c7 c0 ce 05 85 4c 89 f6 31 c0 e8 32 80 13 02 0f 0b 48
RSP: 0018:ffffc90002407528 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000100 RCX: 57a28e4909713d00
RDX: 1ffff92000480e6c RSI: ffffffff8505ca00 RDI: 0000000000000001
RBP: ffffc90002407548 R08: dffffc0000000000 R09: ffffed103ee465a0
R10: ffffed103ee465a0 R11: 1ffff1103ee4659f R12: dffffc0000000000
R13: ffff88812459d640 R14: ffff88812459d6b8 R15: dead000000000122
FS:  00007fafd4b62700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe39b7e7c0 CR3: 000000012196d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400