R13: 00007f49303385fc R14: 000000000002060e R15: 00007fff1c054aa0 ---[ end trace 4fef7e8bc2a30bf6 ]--- list_del corruption. prev->next should be ffff8881102f03c0, but was ffff8881102f0f70 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 829 Comm: syz-executor Tainted: G W 5.10.226-syzkaller-00001-g6a01908517df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 4c 89 f6 e8 9c 27 56 02 0f 0b 48 c7 c7 80 29 60 85 4c 89 f6 e8 8b 27 56 02 0f 0b 48 c7 c7 e0 29 60 85 4c 89 f6 e8 7a 27 56 02 <0f> 0b 48 c7 c7 40 2a 60 85 4c 89 f6 e8 69 27 56 02 0f 0b cc 55 48 RSP: 0018:ffffc90000b37c50 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff8881102f0f70 RCX: 0573672dc2e50000 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 RBP: ffffc90000b37c70 R08: ffffffff81522098 R09: ffffed103ee24e8b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881102f0388 R14: ffff8881102f03c0 R15: ffff88811033ea20 FS: 000055555cab7500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f739566bd58 CR3: 000000011fee7000 CR4: 00000000003526a0 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+0x250/0x650 fs/dcache.c:579 dentry_kill+0xc0/0x2a0 dput+0x40/0x80 fs/dcache.c:883 incfs_free_mount_info+0x60/0x210 fs/incfs/data_mgmt.c:166 incfs_kill_sb+0x1c2/0x220 fs/incfs/vfs.c:1979 deactivate_locked_super+0xad/0x110 fs/super.c:335 deactivate_super+0xbe/0xf0 fs/super.c:366 cleanup_mnt+0x45c/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x129/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f49302c6a47 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff1c053928 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f49302c6a47 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff1c0539e0 RBP: 00007fff1c0539e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff1c054a60 R13: 00007f49303385fc R14: 000000000002060e R15: 00007fff1c054aa0 Modules linked in: ---[ end trace 4fef7e8bc2a30bf7 ]--- RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 4c 89 f6 e8 9c 27 56 02 0f 0b 48 c7 c7 80 29 60 85 4c 89 f6 e8 8b 27 56 02 0f 0b 48 c7 c7 e0 29 60 85 4c 89 f6 e8 7a 27 56 02 <0f> 0b 48 c7 c7 40 2a 60 85 4c 89 f6 e8 69 27 56 02 0f 0b cc 55 48 RSP: 0018:ffffc90000b37c50 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff8881102f0f70 RCX: 0573672dc2e50000 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 RBP: ffffc90000b37c70 R08: ffffffff81522098 R09: ffffed103ee24e8b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881102f0388 R14: ffff8881102f03c0 R15: ffff88811033ea20 FS: 000055555cab7500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f739566bd58 CR3: 000000011fee7000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400