CVE-2026-80747
Linux kernel amdkfd CRAT parser OOB read can leak memory or crash.
Is CVE-2026-80747 being exploited?
Not confirmed. CVE-2026-80747 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-80747?
CVE-2026-80747 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-80747?
Yes. A fix has been recorded for CVE-2026-80747. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-80747 affect?
CVE-2026-80747 affects Linux kernel (drm/amdkfd), AMD GPU systems with KFD, Distributions shipping affected kernels. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-80747?
Apply vendor/distribution kernel updates to the patched stable release.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Out-of-bounds read in kernel CRAT parser may disclose kernel memory or trigger kernel crash (DoS) via crafted CRAT/firmware.
Patch when possible
- affected>= 5b5c4e40a37e858e2bff8cd91be8e972256392c4 and < ca91e0cc8087568e4b791648a7c01e804f48cb73
- affected>= 5b5c4e40a37e858e2bff8cd91be8e972256392c4 and < 6e7566ba4739dd573c331adde1c96690f7a567bd
- affected3.19
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.