list_del corruption. prev->next should be ffff8881478e61a0, but was ffff8881478e6b30. (prev=ffff88811449ce60)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2270 Comm: syz.9.630 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__list_del_entry_valid+0x10f/0x130 lib/list_debug.c:59
Code: e8 1e 86 88 02 0f 0b 48 c7 c7 a0 73 ca 85 48 89 de e8 0d 86 88 02 0f 0b 48 c7 c7 00 74 ca 85 48 89 de 4c 89 f9 e8 f9 85 88 02 <0f> 0b 48 c7 c7 80 74 ca 85 48 89 de 4c 89 f1 e8 e5 85 88 02 0f 0b
RSP: 0018:ffffc9001465f6e8 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8881478e61a0 RCX: 9c1328faa4acb700
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9001465f708 R08: ffffc9001465f3e7 R09: 1ffff920028cbe7c
R10: dffffc0000000000 R11: fffff520028cbe7d R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881478e6b30 R15: ffff88811449ce60
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f148b837000 CR3: 0000000124a07000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:134 [inline]
 dentry_unlist fs/dcache.c:554 [inline]
 __dentry_kill+0x259/0x680 fs/dcache.c:607
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:918
 incfs_free_mount_info+0x60/0x200 fs/incfs/data_mgmt.c:166
 incfs_kill_sb+0x1af/0x210 fs/incfs/vfs.c:2005
 deactivate_locked_super+0xb5/0x120 fs/super.c:336
 deactivate_super+0xaf/0xe0 fs/super.c:367
 cleanup_mnt+0x45e/0x4e0 fs/namespace.c:1192
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1199
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xb0d/0x29f0 kernel/exit.c:896
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1040
 get_signal+0x167c/0x1700 kernel/signal.c:2904
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:288
RIP: 0033:0x7f869bd9e1d9
Code: Unable to access opcode bytes at 0x7f869bd9e1af.
RSP: 002b:00007f869cc20fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007f869c025fa0 RCX: 00007f869bd9e1d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f869be35888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f869c026038 R14: 00007f869c025fa0 R15: 00007fff55a99ee8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid+0x10f/0x130 lib/list_debug.c:59
Code: e8 1e 86 88 02 0f 0b 48 c7 c7 a0 73 ca 85 48 89 de e8 0d 86 88 02 0f 0b 48 c7 c7 00 74 ca 85 48 89 de 4c 89 f9 e8 f9 85 88 02 <0f> 0b 48 c7 c7 80 74 ca 85 48 89 de 4c 89 f1 e8 e5 85 88 02 0f 0b
RSP: 0018:ffffc9001465f6e8 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8881478e61a0 RCX: 9c1328faa4acb700
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9001465f708 R08: ffffc9001465f3e7 R09: 1ffff920028cbe7c
R10: dffffc0000000000 R11: fffff520028cbe7d R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881478e6b30 R15: ffff88811449ce60
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f148b837000 CR3: 0000000124a07000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600