UDF-fs: error (device loop5): udf_read_tagged: read failed, block=2032, location=2032
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
==================================================================
BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x847/0x860 fs/udf/inode.c:2059
Write of size 4 at addr ffff8880a1cebff8 by task syz-executor.5/1726

CPU: 0 PID: 1726 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
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_store_n_noabort+0x8b/0xa0 mm/kasan/report.c:449
 udf_write_aext+0x847/0x860 fs/udf/inode.c:2059
 udf_add_entry+0xdab/0x2a20 fs/udf/namei.c:496
 udf_mkdir+0x145/0x650 fs/udf/namei.c:693
 vfs_mkdir+0x508/0x7a0 fs/namei.c:3819
 do_mkdirat+0x262/0x2d0 fs/namei.c:3842
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f58163155f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5814c88168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f5816435f80 RCX: 00007f58163155f9
RDX: 0000000000000020 RSI: 0000000020000800 RDI: ffffffffffffff9c
RBP: 00007f58163707b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc7762130f R14: 00007f5814c88300 R15: 0000000000022000

Allocated by task 4696:
 kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625
 kmalloc include/linux/slab.h:515 [inline]
 kzalloc include/linux/slab.h:709 [inline]
 kernfs_iop_get_link fs/kernfs/symlink.c:136 [inline]
 kernfs_iop_get_link+0x61/0x6f0 fs/kernfs/symlink.c:127
 vfs_readlink+0x1d7/0x390 fs/namei.c:4738
 do_readlinkat+0x27e/0x2f0 fs/stat.c:406
 __do_sys_readlinkat fs/stat.c:421 [inline]
 __se_sys_readlinkat fs/stat.c:418 [inline]
 __x64_sys_readlinkat+0x93/0xf0 fs/stat.c:418
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 4696:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 do_delayed_call include/linux/delayed_call.h:28 [inline]
 vfs_readlink+0x142/0x390 fs/namei.c:4743
 do_readlinkat+0x27e/0x2f0 fs/stat.c:406
 __do_sys_readlinkat fs/stat.c:421 [inline]
 __se_sys_readlinkat fs/stat.c:418 [inline]
 __x64_sys_readlinkat+0x93/0xf0 fs/stat.c:418
 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 ffff8880a1ceabc0
 which belongs to the cache kmalloc-4096 of size 4096
The buggy address is located 1080 bytes to the right of
 4096-byte region [ffff8880a1ceabc0, ffff8880a1cebbc0)
The buggy address belongs to the page:
page:ffffea0002873a80 count:1 mapcount:0 mapping:ffff88813bff0dc0 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffffea00011a9988 ffffea0002721888 ffff88813bff0dc0
raw: 0000000000000000 ffff8880a1ceabc0 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a1cebe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880a1cebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880a1cebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff8880a1cec000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880a1cec080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================