EXT4-fs error (device loop3): ext4_find_dest_de:2063: inode #12: block 7: comm syz-executor.3: bad entry in directory: rec_len % 4 != 0 - offset=0, inode=1660078826, rec_len=60141, size=56 fake=0 EXT4-fs error (device loop3): ext4_xattr_block_get:544: inode #19: comm syz-executor.3: corrupted xattr block 128 ================================================================== BUG: KASAN: use-after-free in ext4_search_dir+0xee/0x1b0 fs/ext4/namei.c:1504 Read of size 1 at addr ffff8881ee15900a by task syz-executor.3/397 CPU: 0 PID: 397 Comm: syz-executor.3 Not tainted 5.4.268-syzkaller-00001-g8322246edffa #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d8/0x241 lib/dump_stack.c:118 print_address_description+0x8c/0x600 mm/kasan/report.c:384 __kasan_report+0xf3/0x120 mm/kasan/report.c:516 kasan_report+0x30/0x60 mm/kasan/common.c:653 ext4_search_dir+0xee/0x1b0 fs/ext4/namei.c:1504 ext4_find_inline_entry+0x4b6/0x5e0 fs/ext4/inline.c:1698 __ext4_find_entry+0x2a9/0x1b50 fs/ext4/namei.c:1577 ext4_lookup_entry fs/ext4/namei.c:1730 [inline] ext4_lookup+0x3c6/0xaa0 fs/ext4/namei.c:1798 lookup_open fs/namei.c:3308 [inline] do_last fs/namei.c:3421 [inline] path_openat+0x159a/0x3480 fs/namei.c:3634 do_filp_open+0x20b/0x450 fs/namei.c:3664