executing program
BUG: memory leak
unreferenced object 0xffff88811ece6e60 (size 32):
  comm "syz-executor730", pid 6980, jiffies 4294943674 (age 13.160s)
  hex dump (first 32 bytes):
    00 64 6d 61 62 75 66 3a 00 00 00 00 00 00 00 00  .dmabuf:........
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000071936953>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000071936953>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000071936953>] slab_alloc mm/slab.c:3319 [inline]
    [<0000000071936953>] __do_kmalloc mm/slab.c:3653 [inline]
    [<0000000071936953>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3670
    [<0000000000922f40>] memdup_user+0x26/0xa0 mm/util.c:172
    [<000000005abeca0e>] strndup_user+0x62/0x80 mm/util.c:231
    [<00000000f426ca80>] dma_buf_set_name drivers/dma-buf/dma-buf.c:331 [inline]
    [<00000000f426ca80>] dma_buf_ioctl+0x60/0x1e0 drivers/dma-buf/dma-buf.c:391
    [<00000000c4249472>] vfs_ioctl fs/ioctl.c:47 [inline]
    [<00000000c4249472>] file_ioctl fs/ioctl.c:539 [inline]
    [<00000000c4249472>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:726
    [<000000003e330ac2>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:743
    [<0000000032a93f70>] __do_sys_ioctl fs/ioctl.c:750 [inline]
    [<0000000032a93f70>] __se_sys_ioctl fs/ioctl.c:748 [inline]
    [<0000000032a93f70>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:748
    [<00000000bf833dfa>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
    [<000000002784f663>] entry_SYSCALL_64_after_hwframe+0x44/0xa9