Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: do not warn on seeing non-migration pmd entry Patch series "mm/hmm: A fix and a selftest", v3. Patch 1 fixes a stale warning present from the time when only migration softleaf entries were supported at the PMD level. Patch 2 adds some code into hmm-tests.c which exercises the pagemap path for PMD device-private entries. This patch (of 2): pagemap_pmd_range_thp() warns if a non-present PMD is not a migration entry. This became false once device-private entries at the PMD level were added. Therefore, remove the stale migration-only assertion.
References
- https://git.kernel.org/stable/c/319caaca072adc564ac9c5357ed013909f23d5ab
- https://git.kernel.org/stable/c/cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0
FAQ
What is CVE-2026-72173?
CVE-2026-72173 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: do not warn on seeing non-migration pmd entry Patch series "mm/hmm: A fix and a selftest", v3. Patch 1 fixes a ...
How severe is CVE-2026-72173?
CVSS scoring is not yet available for CVE-2026-72173. Check NVD for updates.
Is there a patch for CVE-2026-72173?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.