loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): Test dummy encryption mode enabled EXT4-fs (loop0): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem without journal. Opts: test_dummy_encryption,journal_ioprio=0x0000000000000001,stripe=0x0000000000000000,,errors=continue. Quota mode: none. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4413 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xb9/0xf0 Modules linked in: CPU: 1 PID: 4413 Comm: syz.0.16 Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:fscrypt_fname_siphash+0xb9/0xf0 fs/crypto/fname.c:543 Code: 42 0f b6 04 28 84 c0 75 38 41 8b 34 24 49 83 c6 40 4c 89 ff 4c 89 f2 5b 41 5c 41 5d 41 5e 41 5f e9 0c 00 40 02 e8 57 a9 92 ff <0f> 0b eb aa 89 d9 80 e1 07 38 c1 7c 8c 48 89 df e8 f2 72 dc ff eb RSP: 0018:ffffc90002e37470 EFLAGS: 00010293 RAX: ffffffff81edca89 RBX: 0000000000000000 RCX: ffff88807a595940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002e37630 R08: ffffffff81edca2e R09: ffffffff82198279 R10: 0000000000000007 R11: ffff88807a595940 R12: ffffc90002e375c0 R13: dffffc0000000000 R14: ffff888070a0e000 R15: ffff888068976650 FS: 00007f7ea665c6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ef5ffff CR3: 000000005dc45000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __ext4fs_dirhash+0xdd2/0x14c0 fs/ext4/hash.c:268 ext4fs_dirhash+0x1b8/0x320 fs/ext4/hash.c:322 htree_dirblock_to_tree+0x723/0x10d0 fs/ext4/namei.c:1125 ext4_htree_fill_tree+0x73d/0x13f0 fs/ext4/namei.c:1220 ext4_dx_readdir fs/ext4/dir.c:606 [inline] ext4_readdir+0x2f8e/0x3970 fs/ext4/dir.c:142 iterate_dir+0x224/0x570 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f7ea73dbff9 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:00007f7ea665c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f7ea7593f80 RCX: 00007f7ea73dbff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f7ea744e296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7ea7593f80 R15: 00007ffc3ae2f4a8