CVE-2026-64464

linux: In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xh...

CVE-2026-64464 is fixed in 20 products on 1 platform, first by ALAS2023-2026-2045, released August 3, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel-livepatch-6.18.39-79.141 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-devel · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-headers · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
linux · Debian 14 7.1.4-1 DEBIAN-CVE-2026-64464 Aug 7, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
perf6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
python3-perf6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026

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