CVE record · CVE-2026-89818

drm/amdgpu/vcn: fix integer overflow in dec_msg buffer count check

CVSS 7.1 HighEPSS 0.0016 · 5th percentile

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 88411caee8f576d6b5abf6531232fcc0ce756dc5 to before c2340281be4ddacb8c203e2bce59b126d1d6c4c8 git affected c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e to before 6dceaeceaa7c8396339f3ea34b0110cb912ca61b git affected 7688143ca62edeecacb3ba0a2cea129dbd262a18 to before 47799e1f893d47d8af231710a61065e3ec8a13e8 git affected 63b51e8a9d54317d31cc3856c1e12407070d5fc2 to before 7e28853c78c20bb8ba4c1dba702430cd05e09f76 git affected b193019860d61e92da395eae2011f2f6716b182f to before 9ae19bd60891bea0a7b7504cc8dbfe74570ac3b3 git affected b193019860d61e92da395eae2011f2f6716b182f to before 4d7390530853eb7befda9cc786e4c86e8ad7ac9e git affected f55552adb100eb54a6e6dabff4fbdc8679bd3fa0 git affected 82c535eff05490c71153af57de9fe85502fcb5d5 git affected 638d3e0b9eb77aa53fdd60e2b928761d16ba76fa git affected 870c8738c3774336baedddd0240951d078a703b8 git affected 638e48ee39d0f2af9336f917a6f5d6692dd64d93 git affected e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7 git and 7 more Other versions: unaffected
Linux	Linux	affected 7.1 unaffected before 7.1 semver unaffected 6.1.188 to 6.1., inclusive semver unaffected 6.6.157 to 6.6., inclusive semver unaffected 6.12.110 to 6.12., inclusive semver unaffected 6.18.51 to 6.18., inclusive semver unaffected 7.2.5 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-89818
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0016, the 5th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.