syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70
Read of size 8 at addr ffff888040c28738 by task syz-executor/12850

CPU: 0 PID: 12850 Comm: syz-executor Not tainted 6.1.0-rc4-next-20221110 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8f/0xb7
 print_report+0x175/0x478
 kasan_report+0xbf/0x1c0
 __lock_acquire+0x42c9/0x5e70
 lock_acquire+0x1a6/0x530
 _raw_spin_lock_irq+0x36/0x50
 kmemleak_scan+0x1a0/0x1600
 kmemleak_write+0x574/0x680
 full_proxy_write+0x121/0x190
 vfs_write+0x2cf/0xd90
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fac3e9665c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007fff7cd76e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fff7cd77458 RCX: 00007fac3e9665c3
RDX: 0000000000000004 RSI: 00007fac3ea1ced9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000d39 R09: 00007fff7cde3080
R10: 00007fff7cde3090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007fff7cd78ef1 R14: 0000000000000000 R15: 000000000033a7d9
 </TASK>

Allocated by task 12849:
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 __kasan_slab_alloc+0x5c/0x70
 kmem_cache_alloc+0x1b1/0x3e0
 __create_object+0x3d/0xc00
 __kmem_cache_alloc_node+0x237/0x3d0
 __kmalloc_node+0x45/0xb0
 kvmalloc_node+0x45/0x200
 simple_xattr_alloc+0x47/0xa0
 simple_xattr_set+0x79/0x610
 shmem_xattr_handler_set+0x46/0xc0
 __vfs_setxattr+0x175/0x1e0
 __vfs_setxattr_noperm+0x129/0x600
 __vfs_setxattr_locked+0x1d7/0x260
 vfs_setxattr+0x143/0x340
 do_setxattr+0x155/0x1a0
 setxattr+0x14d/0x170
 path_setxattr+0x19b/0x1d0
 __x64_sys_setxattr+0xc4/0x160
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Freed by task 13:
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 kasan_save_free_info+0x2e/0x50
 __kasan_slab_free+0x10a/0x190
 kmem_cache_free+0xfb/0x610
 rcu_core+0x7e2/0x2090
 __do_softirq+0x1c7/0x8f9

Last potentially related work creation:
 kasan_save_stack+0x22/0x50
 __kasan_record_aux_stack+0x95/0xb0
 __call_rcu_common.constprop.0+0x6a/0xa40
 __kmem_cache_free+0x95/0x410
 kvfree+0x46/0x50
 simple_xattr_set+0x3fc/0x610
 shmem_xattr_handler_set+0x46/0xc0
 __vfs_setxattr+0x175/0x1e0
 __vfs_setxattr_noperm+0x129/0x600
 __vfs_setxattr_locked+0x1d7/0x260
 vfs_setxattr+0x143/0x340
 do_setxattr+0x155/0x1a0
 setxattr+0x14d/0x170
 path_setxattr+0x19b/0x1d0
 __x64_sys_setxattr+0xc4/0x160
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Second to last potentially related work creation:
 kasan_save_stack+0x22/0x50
 __kasan_record_aux_stack+0x95/0xb0
 __call_rcu_common.constprop.0+0x6a/0xa40
 kmem_cache_free+0xc1/0x610
 __put_cred+0x132/0x180
 revert_creds+0xb3/0xd0
 do_faccessat+0x2db/0x7f0
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

The buggy address belongs to the object at ffff888040c28720
 which belongs to the cache kmemleak_object of size 240
The buggy address is located 24 bytes inside of
 240-byte region [ffff888040c28720, ffff888040c28810)

The buggy address belongs to the physical page:
page:0000000042658c35 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x40c28
flags: 0x100000000000200(slab|node=0|zone=1)
raw: 0100000000000200 ffff88800804f780 ffffea00003557c0 dead000000000004
raw: 0000000000000000 00000000000d000d 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888040c28600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888040c28680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff888040c28700: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff888040c28780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888040c28800: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb
==================================================================