AEGLIX vulnerability intelligence
CVE-2026-99090
UNSCORED · Received
Published: 2026-10-26 · Updated: 2026-10-27 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:27:16.741269+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: serialize vblank counter reads against GPU reset The vblank counter callback reads display registers and scanout position without holding reset_domain->sem. During GPU recovery, display commit work can call the callback while reset owns the semaphore for writing. The hardware access then triggers the lockdep_assert_held() in amdgpu_device_skip_hw_access() and sets TAINT_WARN when lockdep is enabled. Try to acquire the reset semaphore for reading before accessing the hardware, and hold it across the counter and scanout-position reads. If reset is already in progress, return DRM's cached software vblank count instead. This avoids blocking behind reset and avoids accessing display hardware while it is being reset. The cached count is less accurate than the hardware count, but is used only when reset prevents a safe hardware read. This addresses the reset-time warning from this vblank path; it does not suppress or fix unrelated lockdep warnings. (cherry picked from commit 51a4359f7431a4be5e42803c8bdaf7e0e5be2934)
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.16% · percentile 5.6 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- Not scored · UNSCORED
- CVSS version
- Not supplied
- CVSS vector
- Not supplied
- Weaknesses
- Not supplied
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
NVD has not supplied affected-version configurations for this record. Check the vendor references below.
Advisories and references
- https://git.kernel.org/stable/c/037796d9ca1da97978deaefd88ca5649f6cb69f5
- https://git.kernel.org/stable/c/11b6193c8841a052b7907006ffb1e02468b1448e
- https://git.kernel.org/stable/c/1a6023edfbb5673f55fab6348f135fb3b1428ea5
- https://git.kernel.org/stable/c/8d6f773d7479034a574ecc3b585bcd07d46b4824
- https://git.kernel.org/stable/c/f4a0a1ce147d1a6e428d7cb5e3b99fd695139fc7