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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
de66754e9f8029f8ae955a588959b99cab56b506 affected < 99d00a9e35e311a91d258029d5bb584377296c34
de66754e9f8029f8ae955a588959b99cab56b506 affected < a3eaf82ff842d6ca95937ea584417e04828235a6
de66754e9f8029f8ae955a588959b99cab56b506 affected < 49f6e3c3ef19f04f6657ed8dce550e36c763abb8
Linux Linux affected
Version Status Constraints
6.16 affected —
0 unaffected < 6.16
6.18.39 unaffected ≤ 6.18.*
7.1.4 unaffected ≤ 7.1.*
7.2-rc3 unaffected ≤ *

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Fixes

Solution

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/49f6e3c3ef19f04f6657ed8dce550e36c763abb8 cve-icon
https://git.kernel.org/stable/c/99d00a9e35e311a91d258029d5bb584377296c34 cve-icon
https://git.kernel.org/stable/c/a3eaf82ff842d6ca95937ea584417e04828235a6 cve-icon
History

Sat, 25 Jul 2026 09:30:00 +0000

Type Values Removed Values Added
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.
Title xhci: sideband: fix ring sg table pages leak
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-25T08:51:30.443Z

Reserved: 2026-07-19T15:36:31.790Z

Link: CVE-2026-64464

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.