list_del corruption. prev->next should be ffff88810cf756f0, but was ffff88812a4e6a30
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 400 Comm: syz-executor Tainted: G        W         5.10.237-syzkaller-00309-g7e2543346ff7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 a6 d8 2e 02 0f 0b 48 c7 c7 00 15 20 85 48 89 de e8 95 d8 2e 02 0f 0b 48 c7 c7 60 15 20 85 48 89 de e8 84 d8 2e 02 <0f> 0b 48 c7 c7 c0 15 20 85 48 89 de e8 73 d8 2e 02 0f 0b 00 55 48
RSP: 0018:ffffc90000ec7af8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810cf756f0 RCX: 6bab9adc96df0300
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000ec7b18 R08: dffffc0000000000 R09: fffff520001d8e95
R10: fffff520001d8e95 R11: 1ffff920001d8e94 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88812a4e6a30 R15: ffff88810fdd96f0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563add4a8 CR3: 0000000123953000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:132 [inline]
 dentry_unlist fs/dcache.c:526 [inline]
 __dentry_kill+0x24c/0x650 fs/dcache.c:579
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:883
 incfs_free_mount_info+0x60/0x200 fs/incfs/data_mgmt.c:166
 incfs_kill_sb+0x1aa/0x210 fs/incfs/vfs.c:1979
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1118
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa27/0x2470 kernel/exit.c:863
 do_group_exit+0x141/0x310 kernel/exit.c:985
 __do_sys_exit_group kernel/exit.c:996 [inline]
 __se_sys_exit_group kernel/exit.c:994 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:994
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f46414d0969
Code: Unable to access opcode bytes at RIP 0x7f46414d093f.
RSP: 002b:00007ffe457b1618 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f464155290f RCX: 00007f46414d0969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000016 R08: 00007ffe457af3b6 R09: 00007ffe457b28d0
R10: 000000000000000a R11: 0000000000000246 R12: 00007ffe457b28d0
R13: 00007f464155289d R14: 000055555bf614a8 R15: 00007ffe457b4a90
Modules linked in:
---[ end trace e40f8a6e50acb553 ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 a6 d8 2e 02 0f 0b 48 c7 c7 00 15 20 85 48 89 de e8 95 d8 2e 02 0f 0b 48 c7 c7 60 15 20 85 48 89 de e8 84 d8 2e 02 <0f> 0b 48 c7 c7 c0 15 20 85 48 89 de e8 73 d8 2e 02 0f 0b 00 55 48
RSP: 0018:ffffc90000ec7af8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810cf756f0 RCX: 6bab9adc96df0300
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000ec7b18 R08: dffffc0000000000 R09: fffff520001d8e95
R10: fffff520001d8e95 R11: 1ffff920001d8e94 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88812a4e6a30 R15: ffff88810fdd96f0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563add4a8 CR3: 0000000123953000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400