list_del corruption. prev->next should be ffff8881ed29a090, but was ffff8881ea1f9c40
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8310 Comm: syz-executor Tainted: G        W         5.4.290-syzkaller-00001-g986c38813dff #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: 4c 89 f6 e8 49 c7 2a 02 0f 0b 48 c7 c7 00 3f 1a 85 4c 89 f6 e8 38 c7 2a 02 0f 0b 48 c7 c7 60 3f 1a 85 4c 89 f6 e8 27 c7 2a 02 <0f> 0b 48 c7 c7 c0 3f 1a 85 4c 89 f6 e8 16 c7 2a 02 0f 0b 90 55 48
RSP: 0018:ffff8881e02179e0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881ea1f9c40 RCX: bf6af510830fe100
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff8881e0217a00 R08: ffffffff814e7988 R09: 0000000000000003
R10: ffffed103c042ea8 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881ed29a058 R14: ffff8881ed29a090 R15: ffff8881ed29a2b0
FS:  0000555557b24500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2bf938 CR3: 000000000600e000 CR4: 00000000003426b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:131 [inline]
 dentry_unlist fs/dcache.c:526 [inline]
 __dentry_kill+0x24d/0x640 fs/dcache.c:579
 dentry_kill+0xc0/0x2a0 fs/dcache.c:677
 dput+0x40/0x80 fs/dcache.c:864
 incfs_free_mount_info+0x60/0x210 fs/incfs/data_mgmt.c:166
 incfs_kill_sb+0x1c2/0x220 fs/incfs/vfs.c:1950
 deactivate_locked_super+0xad/0x110 fs/super.c:335
 deactivate_super+0x1e2/0x2a0 fs/super.c:366
 cleanup_mnt+0x45c/0x510 fs/namespace.c:1102
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1109
 task_work_run+0x146/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:861
 do_group_exit+0x13e/0x310 kernel/exit.c:984
 __do_sys_exit_group kernel/exit.c:995 [inline]
 __se_sys_exit_group kernel/exit.c:993 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:993
 do_syscall_64+0xd8/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7fcfbe80d969
Code: Bad RIP value.
RSP: 002b:00007ffd4aa65a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fcfbe88f8fd RCX: 00007fcfbe80d969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000009 R08: 00007ffd4aa637d7 R09: 00007ffd4aa66cf0
R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffd4aa66cf0
R13: 00007fcfbe88f89d R14: 0000555557b244a8 R15: 00007ffd4aa67dc0
Modules linked in:
---[ end trace 6ae78fd209ffee51 ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 4c 89 f6 e8 49 c7 2a 02 0f 0b 48 c7 c7 00 3f 1a 85 4c 89 f6 e8 38 c7 2a 02 0f 0b 48 c7 c7 60 3f 1a 85 4c 89 f6 e8 27 c7 2a 02 <0f> 0b 48 c7 c7 c0 3f 1a 85 4c 89 f6 e8 16 c7 2a 02 0f 0b 90 55 48
RSP: 0018:ffff8881e02179e0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881ea1f9c40 RCX: bf6af510830fe100
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff8881e0217a00 R08: ffffffff814e7988 R09: 0000000000000003
R10: ffffed103c042ea8 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881ed29a058 R14: ffff8881ed29a090 R15: ffff8881ed29a2b0
FS:  0000555557b24500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcfbe80d93f CR3: 000000000600e000 CR4: 00000000003426b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400