CVE-2023-52888: media: mediatek: vcodec: Only free buffer VA that is not NULL
Vulnerability summary
CVE-2023-52888 is a medium (CVSS 5.5) Double Free vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 23 · Related 21Timeline
- 30-07-2024PublishedVulnerability first disclosed.
- 30-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Only free buffer VA that is not NULL In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly called only when the buffer to free exists, there are some instances that didn't do the check and triggered warnings in practice. We believe those checks were forgotten unintentionally. Add the checks back to fix the warnings.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu129 products
- linuxAll versions (No fix recorded) | < 6.8.0-48.48
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1018.20
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 590577a4e5257ac3ed72999a94666ad6ba8f24bc, < 56d27b9fca840c68f67706e3cc5f2000c17bce39 | ≥ 590577a4e5257ac3ed72999a94666ad6ba8f24bc, < 5c217253c76c94f76d1df31d0bbdcb88dc07be91 | ≥ 590577a4e5257ac3ed72999a94666ad6ba8f24bc, < 303d01082edaf817ee2df53a40dca9da637a2c04 | ≥ 590577a4e5257ac3ed72999a94666ad6ba8f24bc, < eb005c801ec70ff4307727bd3bd6e8280169ef32 | 4.10
- linux_kernel≥ 4.10, < 6.6.39 | ≥ 6.7, < 6.9.9
Debian1 product
- linuxAll versions (No fix recorded) | < 6.9.9-1
3 vendors · 132 products
