loop3: detected capacity change from 0 to 32768
==================================================================
BUG: KASAN: slab-out-of-bounds in dtSearch+0x1683/0x21b0
Read of size 1 at addr ffff88811318c968 by task syz.3.1138/10432

CPU: 1 UID: 60929 PID: 10432 Comm: syz.3.1138 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 print_report+0xca/0x240
 kasan_report+0x118/0x150
 dtSearch+0x1683/0x21b0
 jfs_lookup+0x155/0x380
 __lookup_slow+0x297/0x3d0
 lookup_slow+0x53/0x70
 walk_component+0x2d2/0x400
 path_lookupat+0x163/0x430
 filename_lookup+0x212/0x570
 filename_setxattr+0xb6/0x600
 path_setxattrat+0x364/0x3a0
 __x64_sys_lsetxattr+0xbf/0xe0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0dc918ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0dca032038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f0dc93b5fa0 RCX: 00007f0dc918ebe9
RDX: 0000200000000340 RSI: 0000200000000280 RDI: 0000200000000240
RBP: 00007f0dc9211e19 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0dc93b6038 R14: 00007f0dc93b5fa0 R15: 00007ffca1fa1c08
 </TASK>

Allocated by task 10432:
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_lru_noprof+0x1c6/0x3d0
 jfs_alloc_inode+0x28/0x70
 alloc_inode+0x6a/0x1b0
 iget_locked+0xf0/0x570
 jfs_iget+0x24/0x3e0
 jfs_lookup+0x1c5/0x380
 lookup_one_qstr_excl+0x131/0x360
 filename_create+0x224/0x3c0
 do_mkdirat+0xa0/0x590
 __x64_sys_mkdir+0x6c/0x80
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88811318c088
 which belongs to the cache jfs_ip of size 2232
The buggy address is located 40 bytes to the right of
 allocated 2232-byte region [ffff88811318c088, ffff88811318c940)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888113188000 pfn:0x113188
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88810727a801
flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000040 ffff88801ed2e780 dead000000000122 0000000000000000
raw: ffff888113188000 00000000800d000c 00000000f5000000 ffff88810727a801
head: 057ff00000000040 ffff88801ed2e780 dead000000000122 0000000000000000
head: ffff888113188000 00000000800d000c 00000000f5000000 ffff88810727a801
head: 057ff00000000003 ffffea00044c6201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_RECLAIMABLE|__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 7353, tgid 7352 (syz.0.318), ts 109452425217, free_ts 104491691134
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x8a/0x370
 ___slab_alloc+0xbeb/0x1410
 kmem_cache_alloc_lru_noprof+0x288/0x3d0
 jfs_alloc_inode+0x28/0x70
 alloc_inode+0x6a/0x1b0
 iget_locked+0xf0/0x570
 jfs_iget+0x24/0x3e0
 jfs_lookup+0x1c5/0x380
 __lookup_slow+0x297/0x3d0
 lookup_slow+0x53/0x70
 walk_component+0x2d2/0x400
 path_lookupat+0x163/0x430
page last free pid 5284 tgid 5284 stack trace:
 __free_frozen_pages+0xbc4/0xd30
 __put_partials+0x156/0x1a0
 put_cpu_partial+0x17c/0x250
 __slab_free+0x2d5/0x3c0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 alloc_skb_with_frags+0xca/0x890
 sock_alloc_send_pskb+0x857/0x990
 unix_dgram_sendmsg+0x461/0x1850
 __sock_sendmsg+0x21c/0x270
 __sys_sendto+0x3bd/0x520
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0xfa/0x3b0

Memory state around the buggy address:
 ffff88811318c800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88811318c880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88811318c900: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                                          ^
 ffff88811318c980: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff88811318ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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