EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs warning (device loop0): __ext4fs_dirhash:270: inode #12: comm syz-executor.0: Siphash requires key ===================================================== BUG: KMSAN: uninit-value in ext4_inlinedir_to_tree+0xde2/0x15a0 fs/ext4/inline.c:1415 ext4_inlinedir_to_tree+0xde2/0x15a0 fs/ext4/inline.c:1415 ext4_htree_fill_tree+0x1941/0x1cd0 fs/ext4/namei.c:1210 ext4_dx_readdir fs/ext4/dir.c:597 [inline] ext4_readdir+0x4bbf/0x5b00 fs/ext4/dir.c:142 iterate_dir+0x688/0x870 fs/readdir.c:110 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x169/0x530 fs/readdir.c:394 __ia32_sys_getdents64+0x93/0xe0 fs/readdir.c:394 ia32_sys_call+0xe3d/0x40a0 arch/x86/include/generated/asm/syscalls_32.h:221 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Local variable hinfo created at: ext4_htree_fill_tree+0x52/0x1cd0 fs/ext4/namei.c:1185 ext4_dx_readdir fs/ext4/dir.c:597 [inline] ext4_readdir+0x4bbf/0x5b00 fs/ext4/dir.c:142 CPU: 0 PID: 12325 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-02339-g101b7a97143a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 =====================================================