What’s Vulnerable › Vulnerabilities

CVE-2021-47645: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-08-11
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com On the case tmp_dcim=1, the index of buffer is miscalculated. This generate a NULL pointer dereference later. So let's fix the calcul and add a check to prevent this to reappear.

Affected products

• Linux kernel: before 5.10.110; from 5.11 before 5.15.33; from 5.16 before 5.16.19; from 5.17 before 5.17.2 — fixed in 5.10.110, 5.15.33, 5.16.19, 5.17.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.110, 5.15.33, 5.16.19, 5.17.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/20811bbe685ca3eddd34b0c750860427d7030910
• https://git.kernel.org/stable/c/20db2ed1e2f9fcd417fa67853e5154f0c2537d6c
• https://git.kernel.org/stable/c/7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52
• https://git.kernel.org/stable/c/8dce4b265a5357731058f69645840dabc718c687
• https://git.kernel.org/stable/c/bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e

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