2019/12/17 01:08:56 executed programs: 15
2019/12/17 01:09:02 executed programs: 17
2019/12/17 01:09:07 executed programs: 19
2019/12/17 01:09:12 executed programs: 21
BUG: memory leak
unreferenced object 0xffff888108af7800 (size 2048):
  comm "syz-executor.0", pid 7288, jiffies 4294990120 (age 65.980s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    20 00 00 00 10 01 00 00 00 00 00 00 01 00 00 00   ...............
  backtrace:
    [<0000000009b946a1>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000009b946a1>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000009b946a1>] slab_alloc mm/slab.c:3320 [inline]
    [<0000000009b946a1>] __do_kmalloc mm/slab.c:3654 [inline]
    [<0000000009b946a1>] __kmalloc+0x169/0x300 mm/slab.c:3665
    [<00000000e29df67f>] kmalloc include/linux/slab.h:561 [inline]
    [<00000000e29df67f>] bio_alloc_bioset+0x1b5/0x2c0 block/bio.c:443
    [<00000000721a5c04>] bio_kmalloc include/linux/bio.h:405 [inline]
    [<00000000721a5c04>] bio_copy_user_iov+0x121/0x4d0 block/bio.c:1253
    [<000000001c1f1da3>] __blk_rq_map_user_iov block/blk-map.c:73 [inline]
    [<000000001c1f1da3>] blk_rq_map_user_iov+0xc6/0x2b0 block/blk-map.c:142
    [<00000000288fe064>] blk_rq_map_user+0x71/0xb0 block/blk-map.c:172
    [<00000000a0d67d51>] sg_start_req drivers/scsi/sg.c:1837 [inline]
    [<00000000a0d67d51>] sg_common_write.isra.0+0x6c9/0xaf0 drivers/scsi/sg.c:807
    [<00000000378fa3fc>] sg_write.part.0+0x2dc/0x520 drivers/scsi/sg.c:713
    [<000000001dbed68d>] sg_write+0x44/0x64 drivers/scsi/sg.c:621
    [<00000000e415e49c>] __vfs_write+0x43/0xa0 fs/read_write.c:494
    [<000000005b2d9667>] vfs_write fs/read_write.c:558 [inline]
    [<000000005b2d9667>] vfs_write+0xee/0x210 fs/read_write.c:542
    [<0000000087cc9449>] ksys_write+0x7c/0x130 fs/read_write.c:611
    [<000000003f58a180>] __do_sys_write fs/read_write.c:623 [inline]
    [<000000003f58a180>] __se_sys_write fs/read_write.c:620 [inline]
    [<000000003f58a180>] __x64_sys_write+0x1e/0x30 fs/read_write.c:620
    [<00000000cc4905bf>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
    [<00000000a03a44b8>] entry_SYSCALL_64_after_hwframe+0x44/0xa9