CVE-2026-64153 (CVSS 8.8)

Description

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/

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/3457807aeb88077712f0a7cb65c3ca5120773d75 https://git.kernel.org/stable/c/3a45af37733446e114bf19b0209fe7d8089bdb8b https://git.kernel.org/stable/c/3c2cdb7c07f664b77e2a75b50793b845d5742efa https://git.kernel.org/stable/c/3e3c3c95ef4fe17231a9149e27bcfc9dae2dd89f https://git.kernel.org/stable/c/55e0f0d1c1a4ee1e46da7da4d443eb3044fb3851 https://git.kernel.org/stable/c/7256e54583aee21e23929e7554278c2f5c1a08b1 https://git.kernel.org/stable/c/f4e37f3df436c2bdd2621c21f9c72c8f149a221d

Frequently Asked Questions

What is CVE-2026-64153? +

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/ It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-64153? +

CVE-2026-64153 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-64153? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-64153