Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. executing program executing program BUG: memory leak unreferenced object 0xffff888110b8d800 (size 256): comm "syz-executor136", pid 8462, jiffies 4294947116 (age 13.820s) hex dump (first 32 bytes): 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000022563012>] kmalloc_node include/linux/slab.h:575 [inline] [<0000000022563012>] kvmalloc_node+0x61/0xf0 mm/util.c:587 [<00000000532b7d52>] kvmalloc include/linux/mm.h:781 [inline] [<00000000532b7d52>] video_usercopy+0x991/0xa50 drivers/media/v4l2-core/v4l2-ioctl.c:3303 [<00000000079cdd48>] v4l2_ioctl+0x77/0x90 drivers/media/v4l2-core/v4l2-dev.c:360 [<0000000068b88a24>] vfs_ioctl fs/ioctl.c:48 [inline] [<0000000068b88a24>] __do_sys_ioctl fs/ioctl.c:753 [inline] [<0000000068b88a24>] __se_sys_ioctl fs/ioctl.c:739 [inline] [<0000000068b88a24>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:739 [<00000000e2a7228f>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000ad53ede0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9