UDF-fs: Scanning with blocksize 2048 failed
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
==================================================================
BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x6e6/0x7e0 fs/udf/inode.c:2084
Write of size 4 at addr ffff888026aa7ff8 by task syz-executor331/5076

CPU: 0 PID: 5076 Comm: syz-executor331 Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:306
 print_report+0x107/0x1f0 mm/kasan/report.c:417
 kasan_report+0xcd/0x100 mm/kasan/report.c:517
 udf_write_aext+0x6e6/0x7e0 fs/udf/inode.c:2084
 udf_add_entry+0x1712/0x3300 fs/udf/namei.c:482
 udf_mkdir+0x13c/0x980 fs/udf/namei.c:681
 vfs_mkdir+0x3b3/0x590 fs/namei.c:4036
 do_mkdirat+0x25b/0x530 fs/namei.c:4061
 __do_sys_mkdir fs/namei.c:4081 [inline]
 __se_sys_mkdir fs/namei.c:4079 [inline]
 __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4079
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9becca5e07
Code: ff ff ff ff c3 66 0f 1f 44 00 00 48 c7 c0 c0 ff ff ff 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 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:00007ffe973c9938 EFLAGS: 00000286 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9becca5e07
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000040
RBP: 00007ffe973c99e0 R08: 0000000000000000 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
R13: 0000000020000040 R14: 0000000020000000 R15: 0000000000000000
 </TASK>

Allocated by task 5018:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x3d/0x60 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:761 [inline]
 slab_alloc_node mm/slub.c:3452 [inline]
 slab_alloc mm/slub.c:3460 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
 kmem_cache_alloc+0x1b3/0x350 mm/slub.c:3476
 getname_flags+0xb8/0x4e0 fs/namei.c:139
 vfs_fstatat fs/stat.c:269 [inline]
 __do_sys_newfstatat fs/stat.c:440 [inline]
 __se_sys_newfstatat+0xcb/0x7d0 fs/stat.c:434
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 5018:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x3d/0x60 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:518
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807
 slab_free mm/slub.c:3787 [inline]
 kmem_cache_free+0x94/0x1d0 mm/slub.c:3809
 vfs_fstatat fs/stat.c:271 [inline]
 __do_sys_newfstatat fs/stat.c:440 [inline]
 __se_sys_newfstatat+0xf7/0x7d0 fs/stat.c:434
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888026aa6600
 which belongs to the cache names_cache of size 4096
The buggy address is located 2552 bytes to the right of
 4096-byte region [ffff888026aa6600, ffff888026aa7600)

The buggy address belongs to the physical page:
page:ffffea00009aa800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26aa0
head:ffffea00009aa800 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffff8880129eb640 ffffea0001e37600 dead000000000002
raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2258, tgid 2258 (kworker/u4:0), ts 14122412727, free_ts 0
 prep_new_page mm/page_alloc.c:2531 [inline]
 get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549
 alloc_slab_page+0xbd/0x190 mm/slub.c:1851
 allocate_slab+0x5e/0x3c0 mm/slub.c:1998
 new_slab mm/slub.c:2051 [inline]
 ___slab_alloc+0x782/0xe20 mm/slub.c:3193
 __slab_alloc mm/slub.c:3292 [inline]
 __slab_alloc_node mm/slub.c:3345 [inline]
 slab_alloc_node mm/slub.c:3442 [inline]
 slab_alloc mm/slub.c:3460 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
 kmem_cache_alloc+0x268/0x350 mm/slub.c:3476
 getname_kernel+0x55/0x2d0 fs/namei.c:227
 kernel_execve+0x6d/0xa00 fs/exec.c:1977
 call_usermodehelper_exec_async+0x262/0x3b0 kernel/umh.c:113
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888026aa7e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888026aa7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888026aa7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff888026aa8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888026aa8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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