UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0
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BUG: KASAN: use-after-free in udf_close_lvid+0x68a/0x980 fs/udf/super.c:2072
Write of size 1 at addr ffff8880839e0190 by task syz-executor234/3615
CPU: 1 PID: 3615 Comm: syz-executor234 Not tainted 5.18.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description+0x65/0x4b0 mm/kasan/report.c:313
print_report+0xf4/0x210 mm/kasan/report.c:429
kasan_report+0xfb/0x130 mm/kasan/report.c:491
udf_close_lvid+0x68a/0x980 fs/udf/super.c:2072
udf_fill_super+0xde8/0x1b20 fs/udf/super.c:2309
mount_bdev+0x26c/0x3a0 fs/super.c:1367
legacy_get_tree+0xea/0x180 fs/fs_context.c:610
vfs_get_tree+0x88/0x270 fs/super.c:1497
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd64e59b08a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fd64e546168 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd64e5461c0 RCX: 00007fd64e59b08a
RDX: 0000000020000000 RSI: 0000000020000700 RDI: 00007fd64e546180
RBP: 000000000000000e R08: 00007fd64e5461c0 R09: 00007fd64e5466b8
R10: 0000000000000810 R11: 0000000000000286 R12: 00007fd64e546180
R13: 0000000020000350 R14: 0000000000000003 R15: 0000000000000004
</TASK>
The buggy address belongs to the physical page:
page:ffffea00020e7800 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x839e0
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00020e7808 ffffea00020e7808 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)
Memory state around the buggy address:
ffff8880839e0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8880839e0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8880839e0180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff8880839e0200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8880839e0280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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