executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff888123680200 (size 32): comm "syz-executor187", pid 7115, jiffies 4294944563 (age 12.950s) 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: [<00000000d13b8be9>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000d13b8be9>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000d13b8be9>] slab_alloc mm/slab.c:3319 [inline] [<00000000d13b8be9>] __do_kmalloc mm/slab.c:3653 [inline] [<00000000d13b8be9>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3670 [<0000000018bfa25d>] memdup_user+0x26/0xa0 mm/util.c:172 [<00000000dee9b456>] strndup_user+0x62/0x80 mm/util.c:231 [<000000007333cabe>] dma_buf_set_name drivers/dma-buf/dma-buf.c:331 [inline] [<000000007333cabe>] dma_buf_ioctl+0x60/0x1e0 drivers/dma-buf/dma-buf.c:391 [<000000006b6dda14>] vfs_ioctl fs/ioctl.c:46 [inline] [<000000006b6dda14>] file_ioctl fs/ioctl.c:509 [inline] [<000000006b6dda14>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696 [<0000000095c1d8e7>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713 [<0000000040c6d454>] __do_sys_ioctl fs/ioctl.c:720 [inline] [<0000000040c6d454>] __se_sys_ioctl fs/ioctl.c:718 [inline] [<0000000040c6d454>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718 [<0000000024b83e83>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294 [<00000000f3c405a1>] entry_SYSCALL_64_after_hwframe+0x44/0xa9