EXT4-fs warning (device loop9): __ext4fs_dirhash:270: inode #2: comm syz-executor: Siphash requires key
EXT4-fs warning (device loop9): __ext4fs_dirhash:270: inode #2: comm syz-executor: Siphash requires key
EXT4-fs warning (device loop9): __ext4fs_dirhash:270: inode #17: comm syz-executor: Siphash requires key
EXT4-fs warning (device loop9): __ext4fs_dirhash:270: inode #17: comm syz-executor: Siphash requires key
------------[ cut here ]------------
kernel BUG at fs/namei.c:2794!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6232 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2794
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 f0 01 f5 ff e9 d0 fd ff ff e8 46 80 ba ff 0f 0b e8 3f 80 ba 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:ffffc900030e7b18 EFLAGS: 00010293
RAX: ffffffff81aa3551 RBX: ffff88812aed4440 RCX: ffff88812aaabb40
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc900030e7b98 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200061cf48 R12: ffff88811a76f7b8
R13: 1ffff110255da888 R14: ffff88812aed4458 R15: ffff88812af23690
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555594754988 CR3: 000000010d47e000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x2c/0x3e0 fs/namei.c:3841
 incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1973
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x45b/0x510 fs/namespace.c:1123
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1130
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa90/0x2500 kernel/exit.c:872
 do_group_exit+0x141/0x310 kernel/exit.c:986
 __do_sys_exit_group kernel/exit.c:997 [inline]
 __se_sys_exit_group kernel/exit.c:995 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:995
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f05482ebdd9
Code: Unable to access opcode bytes at RIP 0x7f05482ebdaf.
RSP: 002b:00007fffb19a0ba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f0548381145 RCX: 00007f05482ebdd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 0000000000000000 R09: 00007f0548381120
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb19a1e60
R13: 00007f0548381120 R14: 0000000000057928 R15: 00007fffb19a2f30
Modules linked in:
---[ end trace 1ff4e1c4f47631ce ]---
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2794
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 f0 01 f5 ff e9 d0 fd ff ff e8 46 80 ba ff 0f 0b e8 3f 80 ba 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:ffffc900030e7b18 EFLAGS: 00010293
RAX: ffffffff81aa3551 RBX: ffff88812aed4440 RCX: ffff88812aaabb40
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc900030e7b98 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200061cf48 R12: ffff88811a76f7b8
R13: 1ffff110255da888 R14: ffff88812aed4458 R15: ffff88812af23690
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb09b5ac4c0 CR3: 000000010d47e000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400