list_del corruption. prev->next should be ffff888158436a20, but was ffff8881102231a0
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10992 Comm: syz.6.2758 Tainted: G        W         5.10.238-syzkaller-00008-g59e9a7228857 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 16 fb 2e 02 0f 0b 48 c7 c7 c0 12 20 85 48 89 de e8 05 fb 2e 02 0f 0b 48 c7 c7 20 13 20 85 48 89 de e8 f4 fa 2e 02 <0f> 0b 48 c7 c7 80 13 20 85 48 89 de e8 e3 fa 2e 02 0f 0b 00 55 48
RSP: 0018:ffffc9000111f7d8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff888158436a20 RCX: f7f729e3376a1c00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9000111f7f8 R08: dffffc0000000000 R09: ffffed103ee2a5f8
R10: ffffed103ee2a5f8 R11: 1ffff1103ee2a5f7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881102231a0 R15: ffff8881584365e0
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a51a77710 CR3: 000000000620f000 CR4: 00000000003506a0
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:1114
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1121
 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
 get_signal+0xf7d/0x12e0 kernel/signal.c:2793
 arch_do_signal_or_restart+0xbf/0x10f0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0xa2/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0x68/0x90 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f7a50d501e5
Code: Unable to access opcode bytes at RIP 0x7f7a50d501bb.
RSP: 002b:00007f7a4f364f80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007f7a50f45080 RCX: 00007f7a50d501e5
RDX: 00007f7a4f364fc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f7a50d9fb39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f7a50f45080 R15: 00007ffc8a595f28
Modules linked in:
---[ end trace 36f16320bf4e95d8 ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 16 fb 2e 02 0f 0b 48 c7 c7 c0 12 20 85 48 89 de e8 05 fb 2e 02 0f 0b 48 c7 c7 20 13 20 85 48 89 de e8 f4 fa 2e 02 <0f> 0b 48 c7 c7 80 13 20 85 48 89 de e8 e3 fa 2e 02 0f 0b 00 55 48
RSP: 0018:ffffc9000111f7d8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff888158436a20 RCX: f7f729e3376a1c00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9000111f7f8 R08: dffffc0000000000 R09: ffffed103ee2a5f8
R10: ffffed103ee2a5f8 R11: 1ffff1103ee2a5f7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881102231a0 R15: ffff8881584365e0
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a51a77710 CR3: 000000000620f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400