# CVE-2023-53349: linux: In the Linux kernel, the following vulnerability has been resolved:  media: ov2740: Fix memleak in ov2740_init_contro...

CVE-2023-53349 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53349, released September 17, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-53349
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2025

## Description

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:     [<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0     [<0000000039c802f4>] kvmalloc_node+0x34/0x180     [<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180 [videodev]     [<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740]     [<0000000092489f59>] i2c_device_probe+0x28d/0x680     [<000000001038babe>] really_probe+0x17c/0x3f0     [<0000000098c7af1c>] __driver_probe_device+0xe3/0x170     [<00000000e1b3dc24>] device_driver_attach+0x34/0x80     [<000000005a04a34d>] bind_store+0x10b/0x1a0     [<00000000ce25d4f2>] drv_attr_store+0x49/0x70     [<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0     [<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0     [<0000000031ddb40a>] vfs_write+0x658/0x810     [<0000000041beecdd>] ksys_write+0xd6/0x1b0     [<0000000023755840>] do_syscall_64+0x38/0x90     [<00000000b2cc2da2>] 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.20-1 | [DEBIAN-CVE-2023-53349](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53349.md) | Sep 17, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.20-1 | [DEBIAN-CVE-2023-53349](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53349.md) | Sep 17, 2025 |
| Linux | linux Debian 14 | 6.1.20-1 | [DEBIAN-CVE-2023-53349](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53349.md) | Sep 17, 2025 |

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