REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) REISERFS (device loop4): Using r5 hash to sort names ================================================================== BUG: KASAN: out-of-bounds in leaf_paste_entries+0x698/0xb10 fs/reiserfs/lbalance.c:1377 Read of size 18446744073709551600 at addr ffff00015875ef94 by task syz-executor.4/8524 CPU: 0 PID: 8524 Comm: syz-executor.4 Not tainted 6.1.82-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:395 kasan_report+0xd4/0x130 mm/kasan/report.c:495 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189 memmove+0x48/0x90 mm/kasan/shadow.c:54 leaf_paste_entries+0x698/0xb10 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+0xa0d4/0xe860 fs/reiserfs/do_balan.c:1452 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x630/0x744 fs/reiserfs/stree.c:2159 reiserfs_add_entry+0x8ec/0xcc4 fs/reiserfs/namei.c:567 reiserfs_mkdir+0x588/0x77c fs/reiserfs/namei.c:862 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:882 [inline] reiserfs_xattr_init+0x2b0/0x6bc fs/reiserfs/xattr.c:1005 reiserfs_fill_super+0x1bfc/0x2028 fs/reiserfs/super.c:2175 mount_bdev+0x274/0x370 fs/super.c:1432 get_super_block+0x44/0x58 fs/reiserfs/super.c:2601 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632 vfs_get_tree+0x90/0x274 fs/super.c:1562 do_new_mount+0x278/0x8fc fs/namespace.c:3051 path_mount+0x590/0xe5c fs/namespace.c:3381 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount fs/namespace.c:3579 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3579 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the physical page: page:000000008f615b0f refcount:3 mapcount:0 mapping:000000009cc2ec21 index:0x213 pfn:0x19875e memcg:ffff0000dda46000 aops:def_blk_aops ino:700004 flags: 0x5ffc60000002042(referenced|workingset|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc60000002042 0000000000000000 dead000000000122 ffff0000c054eb10 raw: 0000000000000213 ffff0001b25b7658 00000003ffffffff ffff0000dda46000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff00015875ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff00015875ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff00015875ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff00015875f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff00015875f080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== REISERFS warning (device loop4): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 1) not found (pos 2) REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. Unable to handle kernel write to read-only memory at virtual address ffff0001572ecff0 KASAN: maybe wild-memory-access in range [0xfffc000ab9767f80-0xfffc000ab9767f87] Mem abort info: