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CVE-2026-64019

15
FAUCET Score

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix dma mapping leak on data setup error We're leaking the initial DMA mapping during iteration if we fail to allocate the tracking descriptor for both PRP and SGL. Unmap the iterator directly; we can't use the existing unmap helper because it depends on the tracking descriptor being successfully allocated, so a new one for an in-use iterator is provided. The mappings were also leaking when the driver detects an invalid bio_vec when mapping PRPs, so fix that too.

First published: Jul 19, 2026Last modified: Jul 19, 2026

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
6.17CNA affecteddefault affected
LinuxLinux
>= 7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2, < 1bf86336e4b6cf40873fda47a7fe191446864937, >= 7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2, < e50db059ec8e63bc50b1cc039e2502cb5ea75a70CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
5.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

No social media mentions found for this CVE.

Media Mentions

No media coverage found for this CVE.

Remediation

Patch Available

Vendor Patches (4)

ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (resolute)Fixed in: 7.0.0-1010.10
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (resolute)Fixed in: 7.0.0-1008.8
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (resolute)Fixed in: 7.0.0-1010.10
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fde (resolute)Fixed in: 7.0.0-1009.9

Vendor Advisories (2)

ubuntuUSN-8603-1

Linux kernel (Azure) vulnerabilities

Jul 24, 2026
ubuntuUSN-8593-1

Linux kernel vulnerabilities

Jul 23, 2026

References

git.kernel.org / stable/c/1bf86336e4b6cf40873fda47a7fe191446864937
git.kernel.org / stable/c/e50db059ec8e63bc50b1cc039e2502cb5ea75a70