list_add corruption. prev->next should be next (ffff88814b6da5e8), but was ffff888062e9d048. (prev=ffff888144705048).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:32!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6212 Comm: syz-executor.0 Not tainted 6.6.0-rc6-next-20231018-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__list_add_valid_or_report+0xb6/0x100 lib/list_debug.c:32
Code: e8 2f d5 3a fd 0f 0b 48 89 d9 48 c7 c7 60 8d e9 8a e8 1e d5 3a fd 0f 0b 48 89 f1 48 c7 c7 e0 8d e9 8a 48 89 de e8 0a d5 3a fd <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 60 8e e9 8a e8 f3 d4 3a
RSP: 0018:ffffc9000318f888 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff88814b6da5e8 RCX: ffffffff816b9cd9
RDX: 0000000000000000 RSI: ffffffff816c3142 RDI: 0000000000000005
RBP: ffff8880183dd048 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff88814b6da000
R13: ffffc9000318f900 R14: ffff888144705048 R15: ffff8880183dd048
FS:  00007f73950b36c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f739439d988 CR3: 00000000213ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:88 [inline]
 __list_add include/linux/list.h:150 [inline]
 list_add_tail include/linux/list.h:183 [inline]
 ptp_open+0x1dd/0x520 drivers/ptp/ptp_chardev.c:125
 posix_clock_open+0x17e/0x240 kernel/time/posix-clock.c:134
 chrdev_open+0x26d/0x6e0 fs/char_dev.c:414
 do_dentry_open+0x8d4/0x18d0 fs/open.c:948
 do_open fs/namei.c:3621 [inline]
 path_openat+0x1d3b/0x2ce0 fs/namei.c:3778
 do_filp_open+0x1de/0x430 fs/namei.c:3808
 do_sys_openat2+0x176/0x1e0 fs/open.c:1440
 do_sys_open fs/open.c:1455 [inline]
 __do_sys_openat fs/open.c:1471 [inline]
 __se_sys_openat fs/open.c:1466 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1466
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f739427cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73950b30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f739439bf80 RCX: 00007f739427cae9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 00007f73942c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f739439bf80 R15: 00007ffe0f3f5498
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xb6/0x100 lib/list_debug.c:32
Code: e8 2f d5 3a fd 0f 0b 48 89 d9 48 c7 c7 60 8d e9 8a e8 1e d5 3a fd 0f 0b 48 89 f1 48 c7 c7 e0 8d e9 8a 48 89 de e8 0a d5 3a fd <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 60 8e e9 8a e8 f3 d4 3a
RSP: 0018:ffffc9000318f888 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff88814b6da5e8 RCX: ffffffff816b9cd9
RDX: 0000000000000000 RSI: ffffffff816c3142 RDI: 0000000000000005
RBP: ffff8880183dd048 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff88814b6da000
R13: ffffc9000318f900 R14: ffff888144705048 R15: ffff8880183dd048
FS:  00007f73950b36c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f739439d988 CR3: 00000000213ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400