REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 7, max trans age 7 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names ================================================================== BUG: KASAN: out-of-bounds in leaf_paste_entries+0x4d8/0x924 fs/reiserfs/lbalance.c:1377 Read of size 18446744073709551600 at addr ffff0000ed3d1f94 by task syz.2.1169/7670 CPU: 1 PID: 7670 Comm: syz.2.1169 Not tainted 5.15.186-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x78/0x30c mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xec/0x15c mm/kasan/report.c:451 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x270/0x2b0 mm/kasan/generic.c:189 memmove+0x90/0xe8 mm/kasan/shadow.c:54 leaf_paste_entries+0x4d8/0x924 fs/reiserfs/lbalance.c:1377 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline] balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline] balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline] balance_leaf+0x81d0/0xd2f4 fs/reiserfs/do_balan.c:1452 do_balance+0x260/0x778 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x5b4/0x6d0 fs/reiserfs/stree.c:2159 reiserfs_add_entry+0x828/0xbe4 fs/reiserfs/namei.c:567 reiserfs_mkdir+0x588/0x788 fs/reiserfs/namei.c:862 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x2b0/0x6dc fs/reiserfs/xattr.c:1012 reiserfs_fill_super+0x17ec/0x1bb4 fs/reiserfs/super.c:2179 mount_bdev+0x264/0x358 fs/super.c:1400 get_super_block+0x44/0x58 fs/reiserfs/super.c:2608 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x228/0x810 fs/namespace.c:3014 path_mount+0x5b4/0x1000 fs/namespace.c:3344 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount fs/namespace.c:3542 [inline] __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the page: page:000000002b3accd2 refcount:2 mapcount:0 mapping:000000004e14f895 index:0x213 pfn:0x12d3d1 memcg:ffff0000d6c94000 aops:def_blk_aops ino:700002 flags: 0x5ffc00000002032(referenced|lru|active|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002032 fffffc0003b9e148 ffff0000d6e1d030 ffff0000c058db08 raw: 0000000000000213 ffff0000f385f1d0 00000002ffffffff ffff0000d6c94000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000ed3d1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000ed3d1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000ed3d1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff0000ed3d2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000ed3d2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== REISERFS warning (device loop2): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 1) not found (pos 2) REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS warning (device loop2): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 1) not found (pos 2) REISERFS warning: reiserfs-5094 has_valid_deh_location: directory entry location seems wrong *3.5*[-982052077 349451772 0x1dd4d554 UNKNOWN], item_len 18049, item_location 48870, free_space(entry_count) 22825 REISERFS error (device loop2): vs-5150 search_by_key: invalid format found in block 531. Fsck? REISERFS (device loop2): Remounting filesystem read-only REISERFS error (device loop2): vs-13050 reiserfs_update_sd_size: i/o failure occurred trying to update [1 2 0x0 SD] stat data REISERFS warning: reiserfs-5094 has_valid_deh_location: directory entry location seems wrong *3.5*[-982052077 349451772 0x1dd4d554 UNKNOWN], item_len 18049, item_location 48870, free_space(entry_count) 22825 REISERFS error (device loop2): vs-5150 search_by_key: invalid format found in block 531. Fsck? REISERFS error (device loop2): zam-7001 reiserfs_find_entry: io error REISERFS warning: reiserfs-5094 has_valid_deh_location: directory entry location seems wrong *3.5*[-982052077 349451772 0x1dd4d554 UNKNOWN], item_len 18049, item_location 48870, free_space(entry_count) 22825 REISERFS error (device loop2): vs-5150 search_by_key: invalid format found in block 531. Fsck? REISERFS error (device loop2): zam-7001 reiserfs_find_entry: io error REISERFS warning: reiserfs-5094 has_valid_deh_location: directory entry location seems wrong *3.5*[-982052077 349451772 0x1dd4d554 UNKNOWN], item_len 18049, item_location 48870, free_space(entry_count) 22825 REISERFS error (device loop2): vs-5150 search_by_key: invalid format found in block 531. Fsck? REISERFS error (device loop2): zam-7001 reiserfs_find_entry: io error