In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpu_hmm_range_get_pages The notifier sequence must only be… (CVE-2026-63879)
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpu_hmm_range_get_pages The notifier sequence must only be read once or otherwise we could work with invalid pages. While at it also fix the coding style, e.g. drop the pre-initialized return value and use the common define for 2G range. (cherry picked from commit c08972f555945cda57b0adb72272a37910153390)
AI Analysis
Technical Summary
The Linux kernel vulnerability CVE-2026-63879 affects the drm/amdgpu driver, specifically the amdgpu_hmm_range_get_pages function. The notifier sequence was being read multiple times, which could lead to referencing invalid memory pages. This flaw was corrected by ensuring the notifier sequence is read only once. The patch also addressed coding style issues. The vulnerability has been resolved in the Linux kernel source via commit c08972f555945cda57b0adb72272a37910153390.
Potential Impact
The vulnerability could potentially cause the kernel to work with invalid memory pages, which may lead to system instability or crashes. No information about exploitation or privilege escalation is provided, and no known exploits are reported in the wild.
Mitigation Recommendations
A fix has been applied to the Linux kernel source code for this vulnerability. Users should update their Linux kernel to a version that includes the patch from commit c08972f555945cda57b0adb72272a37910153390 or later. Patch status is confirmed by the vendor commit. No additional mitigation steps are indicated.
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpu_hmm_range_get_pages The notifier sequence must only be… (CVE-2026-63879)
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpu_hmm_range_get_pages The notifier sequence must only be read once or otherwise we could work with invalid pages. While at it also fix the coding style, e.g. drop the pre-initialized return value and use the common define for 2G range. (cherry picked from commit c08972f555945cda57b0adb72272a37910153390)
CVSS v3.1
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel vulnerability CVE-2026-63879 affects the drm/amdgpu driver, specifically the amdgpu_hmm_range_get_pages function. The notifier sequence was being read multiple times, which could lead to referencing invalid memory pages. This flaw was corrected by ensuring the notifier sequence is read only once. The patch also addressed coding style issues. The vulnerability has been resolved in the Linux kernel source via commit c08972f555945cda57b0adb72272a37910153390.
Potential Impact
The vulnerability could potentially cause the kernel to work with invalid memory pages, which may lead to system instability or crashes. No information about exploitation or privilege escalation is provided, and no known exploits are reported in the wild.
Mitigation Recommendations
A fix has been applied to the Linux kernel source code for this vulnerability. Users should update their Linux kernel to a version that includes the patch from commit c08972f555945cda57b0adb72272a37910153390 or later. Patch status is confirmed by the vendor commit. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-497j-x834-cghh
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-63879"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27ac2a4a8d59891302e4
Added to database: 07/19/2026, 19:38:20 UTC
Last enriched: 07/19/2026, 20:13:27 UTC
Last updated: 07/20/2026, 19:41:22 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.