Race condition in Linux kernel - CVE-2026-93217
Published: September 25, 2026
Vulnerability identifier: #VU152187
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93217
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition in madvise_cold_or_pageout_pte_range() when processing MADV_COLD or MADV_PAGEOUT requests concurrently with device-private PMD migration. A local user can trigger the race to cause a denial of service.
The issue can occur when an HMM-based GPU driver changes a PMD to a device-private entry while the memory-advice operation is in progress.
Affected software
Linux kernel
How to mitigate CVE-2026-93217
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3