Answer in brief
CVE-2026-72173 records a Unknown severity vulnerability in fs/proc/task_mmu: do not warn on seeing non-migration pmd entry. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a30b48bf1b244f11bf9b6d20cdccfe0c2264130c <319caaca072adc564ac9c5357ed013909f23d5ab || >=a30b48bf1b244f11bf9b6d20cdccfe0c2264130c <cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 | 319caaca072adc564ac9c5357ed013909f23d5ab, cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 |
| Linux/Linuxgeneric | 6.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72173 records a Unknown severity vulnerability in fs/proc/task_mmu: do not warn on seeing non-migration pmd entry. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a30b48bf1b244f11bf9b6d20cdccfe0c2264130c <319caaca072adc564ac9c5357ed013909f23d5ab || >=a30b48bf1b244f11bf9b6d20cdccfe0c2264130c <cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 | 319caaca072adc564ac9c5357ed013909f23d5ab, cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0 |
| Linux/Linuxgeneric | 6.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.