EXT4-fs error (device loop6): ext4_ext_check_inode:501: inode #11: comm syz-executor: pblk 0 bad header/extent: invalid extent entries - magic f30a, entries 1, max 4(4), depth 0(0) ------------[ cut here ]------------ kernel BUG at fs/namei.c:2933! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10597 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:may_delete+0x701/0x710 fs/namei.c:2933 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 fe ff ff 48 89 df e8 d0 4e f5 ff e9 77 fe ff ff e8 16 d0 b6 ff 0f 0b e8 0f d0 b6 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 RSP: 0018:ffffc90000ab7b10 EFLAGS: 00010293 RAX: ffffffff81b1ef01 RBX: ffff8881114fcee0 RCX: ffff8881109f62c0 RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 RBP: ffffc90000ab7b78 R08: 0000000000000004 R09: 0000000000000003 R10: fffff52000156f44 R11: 1ffff92000156f44 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff88811151d580 R15: 1ffff1102229f9dc FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7a585cd58 CR3: 0000000115eb8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_rmdir+0x32/0x460 fs/namei.c:4130 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989 deactivate_locked_super+0xa0/0x100 fs/super.c:335 deactivate_super+0xaf/0xe0 fs/super.c:366 cleanup_mnt+0x446/0x500 fs/namespace.c:1139 __cleanup_mnt+0x19/0x20 fs/namespace.c:1146 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 __do_sys_exit_group kernel/exit.c:1014 [inline] __se_sys_exit_group kernel/exit.c:1012 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1012 x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f8378faefc9 Code: Unable to access opcode bytes at RIP 0x7f8378faef9f. RSP: 002b:00007ffe09bd4208 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f8379031da2 RCX: 00007f8378faefc9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000075 R08: 00007ffe09bd1fa5 R09: 00007ffe09bd54c0 R10: 000000000000000b R11: 0000000000000246 R12: 00007ffe09bd54c0 R13: 00007f8379031d7d R14: 000000000007ee68 R15: 00007ffe09bd6590 Modules linked in: ---[ end trace 3895aca2ee94e80b ]--- RIP: 0010:may_delete+0x701/0x710 fs/namei.c:2933 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 fe ff ff 48 89 df e8 d0 4e f5 ff e9 77 fe ff ff e8 16 d0 b6 ff 0f 0b e8 0f d0 b6 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 RSP: 0018:ffffc90000ab7b10 EFLAGS: 00010293 RAX: ffffffff81b1ef01 RBX: ffff8881114fcee0 RCX: ffff8881109f62c0 RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 RBP: ffffc90000ab7b78 R08: 0000000000000004 R09: 0000000000000003 R10: fffff52000156f44 R11: 1ffff92000156f44 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff88811151d580 R15: 1ffff1102229f9dc FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000c3a030 CR3: 000000012707a000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400