UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
audit: type=1800 audit(1673206956.688:2): pid=7984 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor208" name="bus" dev="loop0" ino=861 res=0
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BUG: KASAN: use-after-free in udf_close_lvid.isra.0+0x5a1/0x630 fs/udf/super.c:2044
Write of size 1 at addr ffff8881aafbac88 by task syz-executor208/7983
CPU: 0 PID: 7983 Comm: syz-executor208 Not tainted 4.14.302-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 mm/kasan/report.c:409 [inline]
__asan_report_store1_noabort+0x68/0x70 mm/kasan/report.c:432
udf_close_lvid.isra.0+0x5a1/0x630 fs/udf/super.c:2044
udf_put_super+0x211/0x2a0 fs/udf/super.c:2354
generic_shutdown_super+0x144/0x370 fs/super.c:446
kill_block_super+0x95/0xe0 fs/super.c:1161
deactivate_locked_super+0x6c/0xd0 fs/super.c:319
deactivate_super+0x7f/0xa0 fs/super.c:350
cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
task_work_run+0x11f/0x190 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:191 [inline]
exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f19fbee3e97
RSP: 002b:00007ffffd1de588 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f19fbee3e97
RDX: 00007ffffd1de649 RSI: 000000000000000a RDI: 00007ffffd1de640
RBP: 00007ffffd1de640 R08: 00000000ffffffff R09: 00007ffffd1de420
R10: 0000555555821683 R11: 0000000000000206 R12: 00007ffffd1df6b0
R13: 00005555558215f0 R14: 00007ffffd1de5b0 R15: 0000000000000001
The buggy address belongs to the page:
page:ffffea0006abee80 count:0 mapcount:0 mapping: (null) index:0x0
flags: 0x57ff00000000000()
raw: 057ff00000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: ffffea0006abeea0 ffffea0006abeea0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881aafbab80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8881aafbac00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881aafbac80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff8881aafbad00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8881aafbad80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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