executing program executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff8881219a0ca0 (size 32): comm "syz-executor669", pid 7340, jiffies 4294945162 (age 26.040s) 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: [<0000000064614e0c>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<0000000064614e0c>] slab_post_alloc_hook mm/slab.h:586 [inline] [<0000000064614e0c>] slab_alloc mm/slab.c:3320 [inline] [<0000000064614e0c>] __do_kmalloc mm/slab.c:3654 [inline] [<0000000064614e0c>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<000000000e29142d>] memdup_user+0x26/0xc0 mm/util.c:172 [<0000000050437a05>] strndup_user+0x62/0x80 mm/util.c:231 [<00000000aa1eded1>] dma_buf_set_name drivers/dma-buf/dma-buf.c:331 [inline] [<00000000aa1eded1>] dma_buf_ioctl+0x60/0x1e0 drivers/dma-buf/dma-buf.c:391 [<00000000a02635c2>] vfs_ioctl fs/ioctl.c:47 [inline] [<00000000a02635c2>] ksys_ioctl+0xb4/0xe0 fs/ioctl.c:747 [<00000000f6ffd36a>] __do_sys_ioctl fs/ioctl.c:756 [inline] [<00000000f6ffd36a>] __se_sys_ioctl fs/ioctl.c:754 [inline] [<00000000f6ffd36a>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:754 [<00000000ae330e9f>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294 [<0000000082f660b7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9