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executing program
BUG: memory leak
unreferenced object 0xffff888123d52dc0 (size 64):
  comm "syz-executor237", pid 7142, jiffies 4294942488 (age 8.010s)
  hex dump (first 32 bytes):
    01 00 00 00 20 69 6f 63 00 00 00 00 64 65 76 2f  .... ioc....dev/
    d0 2d d5 23 81 88 ff ff d0 2d d5 23 81 88 ff ff  .-.#.....-.#....
  backtrace:
    [<0000000013d78e2d>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline]
    [<0000000013d78e2d>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<0000000013d78e2d>] slab_alloc mm/slab.c:3326 [inline]
    [<0000000013d78e2d>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
    [<00000000d6e20cd5>] kmalloc include/linux/slab.h:547 [inline]
    [<00000000d6e20cd5>] vhost_net_ubuf_alloc drivers/vhost/net.c:241 [inline]
    [<00000000d6e20cd5>] vhost_net_set_backend drivers/vhost/net.c:1534 [inline]
    [<00000000d6e20cd5>] vhost_net_ioctl+0xb43/0xc10 drivers/vhost/net.c:1716
    [<00000000d1e4141e>] vfs_ioctl fs/ioctl.c:46 [inline]
    [<00000000d1e4141e>] file_ioctl fs/ioctl.c:509 [inline]
    [<00000000d1e4141e>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696
    [<0000000032e20c46>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713
    [<000000006bd33574>] __do_sys_ioctl fs/ioctl.c:720 [inline]
    [<000000006bd33574>] __se_sys_ioctl fs/ioctl.c:718 [inline]
    [<000000006bd33574>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718
    [<00000000c0cd31a0>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<00000000ef590230>] entry_SYSCALL_64_after_hwframe+0x44/0xa9