REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP ================================================================== BUG: KASAN: use-after-free in reiserfs_release_objectid+0x430/0x614 fs/reiserfs/objectid.c:165 Read of size 8188 at addr ffff0000f954e050 by task syz.0.335/6209 CPU: 0 PID: 6209 Comm: syz.0.335 Not tainted 6.1.135-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x88/0x220 mm/kasan/report.c:316 print_report+0x50/0x68 mm/kasan/report.c:427 kasan_report+0xa8/0x100 mm/kasan/report.c:531 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x260/0x2a0 mm/kasan/generic.c:189 memmove+0x48/0x90 mm/kasan/shadow.c:54 reiserfs_release_objectid+0x430/0x614 fs/reiserfs/objectid.c:165 remove_save_link+0x21c/0x320 fs/reiserfs/super.c:542 reiserfs_evict_inode+0x2fc/0x3e8 fs/reiserfs/inode.c:91 evict+0x3c8/0x810 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x764/0x7f4 fs/inode.c:1860 d_delete_notify include/linux/fsnotify.h:267 [inline] vfs_rmdir+0x32c/0x438 fs/namei.c:4204 do_rmdir+0x238/0x50c fs/namei.c:4252 __do_sys_unlinkat fs/namei.c:4432 [inline] __se_sys_unlinkat fs/namei.c:4426 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4426 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 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:000000001231e387 refcount:2 mapcount:0 mapping:00000000e471d4e1 index:0x10 pfn:0x13954e memcg:ffff0000f5ae4000 aops:def_blk_aops ino:700000 flags: 0x5ffd60000022056(referenced|uptodate|lru|workingset|private|mappedtodisk|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffd60000022056 fffffc0003862848 fffffc00038bf3c8 ffff0000c053b410 raw: 0000000000000010 ffff0000e160d828 00000002ffffffff ffff0000f5ae4000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000f954ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000f954ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000f9550000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff0000f9550080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff0000f9550100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================