CVE-2023-53349

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: ov2740: Fix memleak in ov2740_init_controls()<br /> <br /> There is a kmemleak when testing the media/i2c/ov2740.c with bpf mock<br /> device:<br /> <br /> unreferenced object 0xffff8881090e19e0 (size 16):<br /> comm "51-i2c-ov2740", pid 278, jiffies 4294781584 (age 23.613s)<br /> hex dump (first 16 bytes):<br /> 00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff ..|......uj.....<br /> backtrace:<br /> [] __kmalloc_node+0x44/0x1b0<br /> [] kvmalloc_node+0x34/0x180<br /> [] v4l2_ctrl_handler_init_class+0x11d/0x180<br /> [videodev]<br /> [] ov2740_probe+0x37d/0x84f [ov2740]<br /> [] i2c_device_probe+0x28d/0x680<br /> [] really_probe+0x17c/0x3f0<br /> [] __driver_probe_device+0xe3/0x170<br /> [] device_driver_attach+0x34/0x80<br /> [] bind_store+0x10b/0x1a0<br /> [] drv_attr_store+0x49/0x70<br /> [] sysfs_kf_write+0x8c/0xb0<br /> [] kernfs_fop_write_iter+0x216/0x2e0<br /> [] vfs_write+0x658/0x810<br /> [] ksys_write+0xd6/0x1b0<br /> [] do_syscall_64+0x38/0x90<br /> [] entry_SYSCALL_64_after_hwframe+0x63/0xcd<br /> <br /> ov2740_init_controls() won&amp;#39;t clean all the allocated resources in fail<br /> path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to<br /> prevent memleak.