CVE-2023-53349

In the Linux kernel, the following vulnerability has been resolved: media: ov2740: Fix memleak in ov2740_init_controls() There is a kmemleak when testing the media/i2c/ov2740.c with bpf mock device: unreferenced object 0xffff8881090e19e0 (size 16): comm "51-i2c-ov2740", pid 278, jiffies 4294781584 (age 23.613s) hex dump (first 16 bytes): 00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff ..|......uj..... backtrace: [ ] __kmalloc_node+0x44/0x1b0 [ ] kvmalloc_node+0x34/0x180 [ ] v4l2_ctrl_handler_init_class+0x11d/0x180 [videodev] [ ] ov2740_probe+0x37d/0x84f [ov2740] [ ] i2c_device_probe+0x28d/0x680 [ ] really_probe+0x17c/0x3f0 [ ] __driver_probe_device+0xe3/0x170 [ ] device_driver_attach+0x34/0x80 [ ] bind_store+0x10b/0x1a0 [ ] drv_attr_store+0x49/0x70 [ ] sysfs_kf_write+0x8c/0xb0 [ ] kernfs_fop_write_iter+0x216/0x2e0 [ ] vfs_write+0x658/0x810 [ ] ksys_write+0xd6/0x1b0 [ ] do_syscall_64+0x38/0x90 [ ] entry_SYSCALL_64_after_hwframe+0x63/0xcd ov2740_init_controls() won't clean all the allocated resources in fail path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to prevent memleak.