EXT4-fs (loop8): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop8): 1 truncate cleaned up EXT4-fs (loop8): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8481 at fs/crypto/fname.c:567 fscrypt_fname_siphash+0xa8/0xe0 fs/crypto/fname.c:567 Modules linked in: CPU: 0 PID: 8481 Comm: syz.8.616 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:fscrypt_fname_siphash+0xa8/0xe0 fs/crypto/fname.c:567 Code: 48 89 d8 48 c1 e8 03 42 0f b6 04 20 84 c0 75 32 8b 33 49 83 c6 40 4c 89 f2 5b 41 5c 41 5e 41 5f e9 4d 5a 54 08 e8 c8 1c 82 ff <0f> 0b eb b3 44 89 f9 80 e1 07 38 c1 7c 9e 4c 89 ff e8 42 8a d9 ff RSP: 0018:ffffc90004c27538 EFLAGS: 00010287 RAX: ffffffff820373f8 RBX: ffffc90004c27640 RCX: 0000000000080000 RDX: ffffc9000d44a000 RSI: 0000000000000270 RDI: 0000000000000271 RBP: ffffc90004c276b0 R08: ffff88807df23c00 R09: 0000000000000007 R10: 0000000000000006 R11: 0000000000000002 R12: dffffc0000000000 R13: ffff8880695bcc08 R14: ffff88805e03a6c0 R15: ffff88805e03a710 FS: 00007f172adea6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005dd25000 CR4: 00000000003526f0 Call Trace: __ext4fs_dirhash+0x33f/0xe20 fs/ext4/hash.c:268 ext4fs_dirhash+0x144/0x2c0 fs/ext4/hash.c:322 htree_dirblock_to_tree+0x6cd/0xe70 fs/ext4/namei.c:1125 ext4_htree_fill_tree+0x5db/0x10f0 fs/ext4/namei.c:1220 ext4_dx_readdir fs/ext4/dir.c:608 [inline] ext4_readdir+0x2b1d/0x39d0 fs/ext4/dir.c:145 iterate_dir+0x1c2/0x580 fs/readdir.c:106 __do_sys_getdents64 fs/readdir.c:405 [inline] __se_sys_getdents64+0xe9/0x260 fs/readdir.c:390 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1729f8f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f172adea038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f172a1e5fa0 RCX: 00007f1729f8f749 RDX: 0000000000000059 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f172a013f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f172a1e6038 R14: 00007f172a1e5fa0 R15: 00007ffcbda75ea8