CVE-2026-89873

High

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-ctrls: validate HEVC EXT SPS RPS counts The HEVC SPS control carries the short-term and long-term RPS counts that decoder drivers use to walk the matching EXT SPS dynamic arrays. Reject SPS values that exceed the HEVC limits of 64 short-term sets and 32 long-term references so drivers cannot later index beyond those controls. Also reject EXT SPS ST RPS entries whose negative or positive picture counts exceed the 16-entry arrays, or whose combined delta-POC count exceeds the HEVC DPB maximum.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux
PublishedSep 16, 2026
First seenSep 16, 2026

How to fix

Update
  • Linux Linux30f85a7c59113a8844b276efc010085a34f912e9, 796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e or later

Affected products

ProductAffected versionsFixed in
Linux Linuxc9a59dc2acc72789d5c778af080d1e65af84862c ≤ v < 30f85a7c59113a8844b276efc010085a34f912e9, c9a59dc2acc72789d5c778af080d1e65af84862c ≤ v < 796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e, 7.030f85a7c59113a8844b276efc010085a34f912e9, 796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.