loop1: detected capacity change from 0 to 32768
==================================================================
BUG: KASAN: slab-use-after-free in dtSplitPage+0x1bce/0x36a0
Write of size 1 at addr ffff888110e47000 by task syz.1.2959/12884

CPU: 0 UID: 0 PID: 12884 Comm: syz.1.2959 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0xe8/0x150
 print_address_description+0x55/0x1e0
 print_report+0x58/0x70
 kasan_report+0x117/0x150
 dtSplitPage+0x1bce/0x36a0
 dtInsert+0x1080/0x5cb0
 jfs_symlink+0x8a1/0xfb0
 vfs_symlink+0x18b/0x330
 filename_symlinkat+0x1cd/0x410
 __se_sys_symlinkat+0x4e/0x2b0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f41f679e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f41f75eb028 EFLAGS: 00000246 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 00007f41f6a25fa0 RCX: 00007f41f679e159
RDX: 00002000000005c0 RSI: ffffffffffffff9c RDI: 0000200000000700
RBP: 00007f41f683506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f41f6a26038 R14: 00007f41f6a25fa0 R15: 00007fff1ebf1108
 </TASK>

Allocated by task 5592:
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x2b9/0x600
 security_file_alloc+0x34/0x310
 init_file+0x90/0x2b0
 alloc_empty_file+0x74/0x1d0
 path_openat+0xa2/0x1d60
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5592:
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x40/0x50
 __kasan_slab_free+0x5c/0x80
 kmem_cache_free+0x182/0x650
 __fput+0x6ac/0xa50
 fput_close_sync+0x11f/0x240
 __x64_sys_close+0x7e/0x110
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888110e47000
 which belongs to the cache lsm_file_cache of size 112
The buggy address is located 0 bytes inside of
 freed 112-byte region [ffff888110e47000, ffff888110e47070)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110e47
flags: 0x17ff00000000000(node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 017ff00000000000 ffff888160417b40 dead000000000100 dead000000000122
raw: 0000000000000000 0000000200170017 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5044, tgid 5044 (udevadm), ts 16932354835
 post_alloc_hook+0x1f9/0x250
 get_page_from_freelist+0x2209/0x2280
 __alloc_frozen_pages_noprof+0x217/0x5a0
 allocate_slab+0x7d/0x620
 refill_objects+0x2d5/0x350
 __pcs_replace_empty_main+0x2c8/0x6c0
 kmem_cache_alloc_noprof+0x399/0x600
 security_file_alloc+0x34/0x310
 init_file+0x90/0x2b0
 alloc_empty_file+0x74/0x1d0
 path_openat+0xa2/0x1d60
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888110e46f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888110e46f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888110e47000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
                   ^
 ffff888110e47080: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb
 ffff888110e47100: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb
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