audit: type=1800 audit(1669301109.098:8): pid=9754 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name=789CECDD4F6C1CD77D07F0DF1B922229B715133B8ADDC6C5A62D5299B15CFD8BA95885BBAA69B601649908C5DC02704552EAC214499054231B69C1F4D2430F018AA2879C08B44681140D8CA6087A645B17482E3E1439F544B4B011143DB045809C020633FB565C5294458BA444DA9F8F4D7D6767DF9B796F663C230B7AF302 dev="loop4" ino=1318 res=0
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:376 [inline]
BUG: KASAN: slab-out-of-bounds in udf_find_entry+0x8fb/0xef0 fs/udf/namei.c:250
Write of size 165 at addr ffff8880a5b0dc1a by task syz-executor.4/9783

CPU: 1 PID: 9783 Comm: syz-executor.4 Not tainted 4.14.299-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
 kasan_report+0x6f/0x80 mm/kasan/report.c:409
 memcpy+0x35/0x50 mm/kasan/kasan.c:303
 memcpy include/linux/string.h:376 [inline]
 udf_find_entry+0x8fb/0xef0 fs/udf/namei.c:250
 udf_lookup fs/udf/namei.c:321 [inline]
 udf_lookup+0x11b/0x210 fs/udf/namei.c:295
 lookup_open+0x5c4/0x1750 fs/namei.c:3220
 do_last fs/namei.c:3334 [inline]
 path_openat+0xe08/0x2970 fs/namei.c:3571
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_sys_open+0x296/0x410 fs/open.c:1081
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3

Allocated by task 9783:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618
 kmalloc include/linux/slab.h:488 [inline]
 udf_find_entry+0x959/0xef0 fs/udf/namei.c:240
 udf_lookup fs/udf/namei.c:321 [inline]
 udf_lookup+0x11b/0x210 fs/udf/namei.c:295
 lookup_open+0x5c4/0x1750 fs/namei.c:3220
 do_last fs/namei.c:3334 [inline]
 path_openat+0xe08/0x2970 fs/namei.c:3571
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_sys_open+0x296/0x410 fs/open.c:1081
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3

Freed by task 8303:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xc9/0x250 mm/slab.c:3815
 do_execveat_common+0x161b/0x2030 fs/exec.c:1860
 do_execve+0x33/0x50 fs/exec.c:1877
 call_usermodehelper_exec_async+0x2ed/0x510 kernel/umh.c:109
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406

The buggy address belongs to the object at ffff8880a5b0dbc0
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 90 bytes inside of
 256-byte region [ffff8880a5b0dbc0, ffff8880a5b0dcc0)
The buggy address belongs to the page:
page:ffffea000296c340 count:1 mapcount:0 mapping:ffff8880a5b0d080 index:0xffff8880a5b0da80
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffff8880a5b0d080 ffff8880a5b0da80 0000000100000006
raw: ffffea0002989920 ffffea0002cdd0e0 ffff88813fe747c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a5b0db80: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff8880a5b0dc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880a5b0dc80: 00 00 00 00 00 00 00 06 fc fc fc fc fc fc fc fc
                                        ^
 ffff8880a5b0dd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880a5b0dd80: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
==================================================================