Answer in brief
CVE-2026-64153 records a High severity (CVSS 8.8) vulnerability in drm/msm: Fix iommu_map_sgtable() return value check and avoid WARN. 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.
CVSS is 8.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <3c2cdb7c07f664b77e2a75b50793b845d5742efa || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <3e3c3c95ef4fe17231a9149e27bcfc9dae2dd89f || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <7256e54583aee21e23929e7554278c2f5c1a08b1 || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <3457807aeb88077712f0a7cb65c3ca5120773d75 || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <f4e37f3df436c2bdd2621c21f9c72c8f149a221d || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <3a45af37733446e114bf19b0209fe7d8089bdb8b || >=ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b <55e0f0d1c1a4ee1e46da7da4d443eb3044fb3851 | 3c2cdb7c07f664b77e2a75b50793b845d5742efa, 3e3c3c95ef4fe17231a9149e27bcfc9dae2dd89f, 7256e54583aee21e23929e7554278c2f5c1a08b1, 3457807aeb88077712f0a7cb65c3ca5120773d75, f4e37f3df436c2bdd2621c21f9c72c8f149a221d, 3a45af37733446e114bf19b0209fe7d8089bdb8b, 55e0f0d1c1a4ee1e46da7da4d443eb3044fb3851 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix iommu_map_sgtable() return value check and avoid WARN Commit "iommu: return full error code from iommu_map_sg[_atomic]()" changed iommu_map_sgtable() to return an ssize_t and negative values in error cases, rather than a size_t and a zero. Store the return value in the appropriate type and in case of error, return it rather than WARNing. Patchwork: https://patchwork.freedesktop.org/patch/719685/
Quoted source text, attributed separately from HOL analysis.