Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhci_ring_to_sgtable() allocates a temporary pages array and uses it to build the returned sg_table with sg_alloc_table_from_pages(). The error paths free the pages array, but the success path returns the sg_table without freeing it. This leaks the temporary array every time a sideband client gets an endpoint or event ring buffer. Free the pages array after sg_alloc_table_from_pages() succeeds. The returned sg_table has its own scatterlist entries and does not depend on the temporary array after construction.
References
- https://git.kernel.org/stable/c/49f6e3c3ef19f04f6657ed8dce550e36c763abb8
- https://git.kernel.org/stable/c/99d00a9e35e311a91d258029d5bb584377296c34
- https://git.kernel.org/stable/c/a3eaf82ff842d6ca95937ea584417e04828235a6
FAQ
What is CVE-2026-64464?
CVE-2026-64464 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhci_ring_to_sgtable() allocates a temporary pages array and uses it to build the ret...
How severe is CVE-2026-64464?
CVSS scoring is not yet available for CVE-2026-64464. Check NVD for updates.
Is there a patch for CVE-2026-64464?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.