R13: 00007fce7c805474 R14: 000000000000dc10 R15: 00007ffd56442d30 ---[ end trace c60002770633ee1c ]--- list_del corruption. prev->next should be ffff88810d126c40, but was ffff88810d13f910 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 288 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 48 89 de e8 b6 89 56 02 0f 0b 48 c7 c7 40 8c 63 85 48 89 de e8 a5 89 56 02 0f 0b 48 c7 c7 a0 8c 63 85 48 89 de e8 94 89 56 02 <0f> 0b 48 c7 c7 00 8d 63 85 48 89 de e8 83 89 56 02 0f 0b 00 55 48 RSP: 0018:ffffc90000a07c58 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff88810d126c40 RCX: 98a8c6cf3498ca00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90000a07c78 R08: ffffc90000a076c7 R09: 1ffff92000140ed8 R10: dffffc0000000000 R11: fffff52000140ed9 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88810d13f910 R15: ffff88810d1263c0 FS: 0000555585c6b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000127a16000 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+0x248/0x660 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+0x1af/0x210 fs/incfs/vfs.c:1997 deactivate_locked_super+0xa0/0x100 fs/super.c:335 deactivate_super+0xaf/0xe0 fs/super.c:366 cleanup_mnt+0x44f/0x500 fs/namespace.c:1149 __cleanup_mnt+0x19/0x20 fs/namespace.c:1156 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: 0033:0x7fce7c770397 Code: a2 c7 05 5c 43 25 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:00007ffd56441ba8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fce7c770397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd56441c60 RBP: 00007ffd56441c60 R08: 00007ffd56442c60 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd56442cf0 R13: 00007fce7c805474 R14: 000000000000dc10 R15: 00007ffd56442d30 Modules linked in: ---[ end trace c60002770633ee1d ]--- RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 48 89 de e8 b6 89 56 02 0f 0b 48 c7 c7 40 8c 63 85 48 89 de e8 a5 89 56 02 0f 0b 48 c7 c7 a0 8c 63 85 48 89 de e8 94 89 56 02 <0f> 0b 48 c7 c7 00 8d 63 85 48 89 de e8 83 89 56 02 0f 0b 00 55 48 RSP: 0018:ffffc90000a07c58 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff88810d126c40 RCX: 98a8c6cf3498ca00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc90000a07c78 R08: ffffc90000a076c7 R09: 1ffff92000140ed8 R10: dffffc0000000000 R11: fffff52000140ed9 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88810d13f910 R15: ffff88810d1263c0 FS: 0000555585c6b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000127a16000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400