UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
==================================================================
BUG: KASAN: slab-out-of-bounds in udf_close_lvid+0x67c/0x770 fs/udf/super.c:2051
Write of size 1 at addr ffff8880aa4f1790 by task syz-executor102/8090

CPU: 1 PID: 8090 Comm: syz-executor102 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_store1_noabort+0x88/0x90 mm/kasan/report.c:435
 udf_close_lvid+0x67c/0x770 fs/udf/super.c:2051
 udf_put_super+0x217/0x290 fs/udf/super.c:2361
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f365b81df17
Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9a737828 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f365b81df17
RDX: 00007fff9a7378e9 RSI: 000000000000000a RDI: 00007fff9a7378e0
RBP: 00007fff9a7378e0 R08: 00000000ffffffff R09: 00007fff9a7376c0
R10: 0000555555e88683 R11: 0000000000000206 R12: 00007fff9a738950
R13: 0000555555e885f0 R14: 00007fff9a737850 R15: 0000000000000004

Allocated by task 6328:
 kmem_cache_alloc+0x122/0x370 mm/slab.c:3559
 getname_flags+0xce/0x590 fs/namei.c:140
 user_path_at_empty+0x2a/0x50 fs/namei.c:2609
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x113/0x210 fs/stat.c:185
 vfs_lstat include/linux/fs.h:3137 [inline]
 __do_sys_newlstat fs/stat.c:350 [inline]
 __se_sys_newlstat+0x96/0x120 fs/stat.c:344
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 6328:
 __cache_free mm/slab.c:3503 [inline]
 kmem_cache_free+0x7f/0x260 mm/slab.c:3765
 putname+0xe1/0x120 fs/namei.c:261
 filename_lookup+0x3d0/0x5a0 fs/namei.c:2358
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x113/0x210 fs/stat.c:185
 vfs_lstat include/linux/fs.h:3137 [inline]
 __do_sys_newlstat fs/stat.c:350 [inline]
 __se_sys_newlstat+0x96/0x120 fs/stat.c:344
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880aa4f0400
 which belongs to the cache names_cache of size 4096
The buggy address is located 912 bytes to the right of
 4096-byte region [ffff8880aa4f0400, ffff8880aa4f1400)
The buggy address belongs to the page:
page:ffffea0002a93c00 count:1 mapcount:0 mapping:ffff88823b843380 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffffea0002a48a88 ffffea0002a93c88 ffff88823b843380
raw: 0000000000000000 ffff8880aa4f0400 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880aa4f1680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880aa4f1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880aa4f1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                         ^
 ffff8880aa4f1800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880aa4f1880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================