R13: 00007f0a99a43038 R14: 00007f0a99a42fa0 R15: 00007ffd7e60cd48 ---[ end trace e606440a7fc14d54 ]--- list_del corruption. prev->next should be ffff888111f813c0, but was ffff888111f81910 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2885 Comm: syz.3.527 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 e6 cd 4f 02 0f 0b 48 c7 c7 40 4c 63 85 48 89 de e8 d5 cd 4f 02 0f 0b 48 c7 c7 a0 4c 63 85 48 89 de e8 c4 cd 4f 02 <0f> 0b 48 c7 c7 00 4d 63 85 48 89 de e8 b3 cd 4f 02 0f 0b 00 55 48 RSP: 0018:ffffc9000c39f7b8 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff888111f813c0 RCX: b63fe18d87161b00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000c39f7d8 R08: dffffc0000000000 R09: fffff52001873e45 R10: fffff52001873e45 R11: 1ffff92001873e44 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888111f81910 R15: ffff888111f81f70 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8b75f8f98 CR3: 0000000125f36000 CR4: 00000000003506b0 DR0: 0000000000000081 DR1: 0000000080000000 DR2: 0000000000000032 DR3: 7fffffffffffffff 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+0x446/0x500 fs/namespace.c:1148 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155 task_work_run+0x127/0x190 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xa7e/0x27a0 kernel/exit.c:889 do_group_exit+0x141/0x310 kernel/exit.c:1003 get_signal+0x66a/0x1480 kernel/signal.c:2907 arch_do_signal_or_restart+0xc1/0x10f0 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:178 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 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:280 RIP: 0033:0x7f0a997ec749 Code: Unable to access opcode bytes at RIP 0x7f0a997ec71f. RSP: 002b:00007f0a98253fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: 0000000000000000 RBX: 00007f0a99a42fa0 RCX: 00007f0a997ec749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f0a99870f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0a99a43038 R14: 00007f0a99a42fa0 R15: 00007ffd7e60cd48 Modules linked in: ---[ end trace e606440a7fc14d55 ]--- RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59 Code: 48 89 de e8 e6 cd 4f 02 0f 0b 48 c7 c7 40 4c 63 85 48 89 de e8 d5 cd 4f 02 0f 0b 48 c7 c7 a0 4c 63 85 48 89 de e8 c4 cd 4f 02 <0f> 0b 48 c7 c7 00 4d 63 85 48 89 de e8 b3 cd 4f 02 0f 0b 00 55 48 RSP: 0018:ffffc9000c39f7b8 EFLAGS: 00010246 RAX: 0000000000000054 RBX: ffff888111f813c0 RCX: b63fe18d87161b00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000c39f7d8 R08: dffffc0000000000 R09: fffff52001873e45 R10: fffff52001873e45 R11: 1ffff92001873e44 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888111f81910 R15: ffff888111f81f70 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8b75f8f98 CR3: 0000000125f36000 CR4: 00000000003506b0 DR0: 0000000000000081 DR1: 0000000080000000 DR2: 0000000000000032 DR3: 7fffffffffffffff DR6: 00000000fffe0ff0 DR7: 0000000000000400