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BUG: KASAN: slab-use-after-free in txEnd+0x32d/0x530
Write of size 8 at addr ffff88816f854040 by task jfsCommit/126

CPU: 1 UID: 0 PID: 126 Comm: jfsCommit 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+0xe8/0x150
 print_address_description+0x55/0x1e0
 print_report+0x58/0x70
 kasan_report+0x117/0x150
 kasan_check_range+0x264/0x2c0
 txEnd+0x32d/0x530
 jfs_lazycommit+0x5d6/0xac0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Allocated by task 10841:
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x31c/0x600
 lmLogOpen+0x2d1/0xf90
 jfs_mount_rw+0xf3/0x670
 jfs_fill_super+0x769/0xda0
 get_tree_bdev_flags+0x430/0x4f0
 vfs_get_tree+0x92/0x2a0
 do_new_mount+0x325/0xb00
 __se_sys_mount+0x31d/0x420
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 10362:
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x40/0x50
 __kasan_slab_free+0x5c/0x80
 kfree+0x1c5/0x650
 lmLogClose+0x296/0x530
 jfs_umount+0x2da/0x3b0
 jfs_put_super+0x8c/0x190
 generic_shutdown_super+0x13d/0x2d0
 kill_block_super+0x44/0xa0
 deactivate_locked_super+0xbe/0x110
 cleanup_mnt+0x204/0x2a0
 task_work_run+0x1d9/0x260
 exit_to_user_mode_loop+0x204/0x770
 do_syscall_64+0x328/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88816f854000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 64 bytes inside of
 freed 1024-byte region [ffff88816f854000, ffff88816f854400)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88816f854800 pfn:0x16f850
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000240(workingset|head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000240 ffff888100041dc0 ffffea0005e29210 ffff888160400888
raw: ffff88816f854800 000000000010000e 00000000f5000000 0000000000000000
head: 057ff00000000240 ffff888100041dc0 ffffea0005e29210 ffff888160400888
head: ffff88816f854800 000000000010000e 00000000f5000000 0000000000000000
head: 057ff00000000003 fffffffffffffe01 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 Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5529, tgid 5529 (syz-executor), ts 50173093533
 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
 __kmalloc_noprof+0x476/0x710
 mempool_init_node+0x1f4/0x510
 mempool_create_node_noprof+0xb8/0x150
 sio_pool_init+0x44/0xa0
 setup_swap_extents+0x62/0x480
 __se_sys_swapon+0x125c/0x2020
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5574 tgid 5574 ts 48993770168 stack trace:
 __free_frozen_pages+0xc93/0xd90
 __slab_free+0x274/0x2c0
 qlist_free_all+0x99/0x100
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 __kmalloc_noprof+0x302/0x710
 tomoyo_supervisor+0xc4e/0x1550
 tomoyo_path_permission+0x262/0x3b0
 tomoyo_check_open_permission+0x31f/0x470
 security_file_open+0xa9/0x240
 do_dentry_open+0x495/0x1360
 vfs_open_consume+0x4a/0x350
 path_openat+0x16fc/0x20f0
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170

Memory state around the buggy address:
 ffff88816f853f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88816f853f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88816f854000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88816f854080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88816f854100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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