AEGLIX vulnerability intelligence
CVE-2026-98505
UNSCORED · Received
Published: 2026-10-18 · Updated: 2026-10-21 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:23:19.568232+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: mm/damon/vaddr: avoid hw-driven pte updates during damon_hugetlb_mkold() damon_hugetlb_mkold() reads the page table entry into a local variable, unsets the accessed bit in the variable, and updates the page table entry with the updated variable value. If hardware updates the same page table entry in parallel, the hw updates could be lost. For example, hardware-updated dirty bits might be lost. Avoid the parallel updates by clearing the page table entry when reading it together, using huge_ptep_get_and_clear(). If a parallel write to the memory is made after the clearing, the hw will see the page table entry is cleared, trigger page fault and wait until it is handled. The page fault handling will wait for damon_hugetlb_mkold() due to the page table lock. Because hugetlbfs is an in-memory file system and hugetlb pages cannot be reclaimed, no critical issue is expected to my best knowledge. But definitely this is a nasty bug that should be fixed sooner rather than later. The issue was discovered [1] by Sashiko.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.20% · percentile 9.8 · 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/00457981327c80bcc56e07d4714fe189337a19fa
- https://git.kernel.org/stable/c/39c0ceedd54557bdc1542de08d22b2ed33e534e4
- https://git.kernel.org/stable/c/6e74ffc9ecf6ec24eee117150da78a1102be74c5
- https://git.kernel.org/stable/c/7ed1062d154ec2401f2c894fd6858598bb1160b6
- https://git.kernel.org/stable/c/e59cb7eda7c06334a0faf5aa44adb6acf2a1287a