---[ end trace c400802d18fbc786 ]--- list_del corruption. prev->next should be ffff88813258c090, but was ffff88813258c800 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11543 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 48 89 de e8 16 70 56 02 0f 0b 48 c7 c7 00 98 63 85 48 89 de e8 05 70 56 02 0f 0b 48 c7 c7 60 98 63 85 48 89 de e8 f4 6f 56 02 <0f> 0b 48 c7 c7 c0 98 63 85 48 89 de e8 e3 6f 56 02 0f 0b 00 55 48 RSP: 0018:ffffc90000ae7c38 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff88813258c090 RCX: cd3aed3699743e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90000ae7c58 R08: ffffc90000ae76a7 R09: 1ffff9200015ced4 R10: dffffc0000000000 R11: fffff5200015ced5 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88813258c800 R15: ffff88813258c6f0 FS: 000055557665b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81dfb83ec0 CR3: 0000000117c15000 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:529 [inline] __dentry_kill+0x24c/0x650 fs/dcache.c:582 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1 dput+0x47/0x90 fs/dcache.c:893 incfs_free_mount_info+0x60/0x200 fs/incfs/data_mgmt.c:166 incfs_kill_sb+0x1b8/0x220 fs/incfs/vfs.c:1997 deactivate_locked_super+0xa0/0x100 fs/super.c:335 deactivate_super+0xaf/0xe0 fs/super.c:366 cleanup_mnt+0x45b/0x510 fs/namespace.c:1148 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4de1c97f17 Code: a2 c7 05 7c 96 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffef141c498 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4de1c97f17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef141c550 RBP: 00007ffef141c550 R08: 00007ffef141d550 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffef141d5e0 R13: 00007f4de1d0071f R14: 000000000008741e R15: 00007ffef141d620 Modules linked in: ---[ end trace c400802d18fbc787 ]--- RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 48 89 de e8 16 70 56 02 0f 0b 48 c7 c7 00 98 63 85 48 89 de e8 05 70 56 02 0f 0b 48 c7 c7 60 98 63 85 48 89 de e8 f4 6f 56 02 <0f> 0b 48 c7 c7 c0 98 63 85 48 89 de e8 e3 6f 56 02 0f 0b 00 55 48 RSP: 0018:ffffc90000ae7c38 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff88813258c090 RCX: cd3aed3699743e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90000ae7c58 R08: ffffc90000ae76a7 R09: 1ffff9200015ced4 R10: dffffc0000000000 R11: fffff5200015ced5 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88813258c800 R15: ffff88813258c6f0 FS: 000055557665b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81dfb83ec0 CR3: 0000000117c15000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400