Answer in brief
CVE-2026-64464 records a Unknown severity vulnerability in xhci: sideband: fix ring sg table pages leak. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=de66754e9f8029f8ae955a588959b99cab56b506 <99d00a9e35e311a91d258029d5bb584377296c34 || >=de66754e9f8029f8ae955a588959b99cab56b506 <a3eaf82ff842d6ca95937ea584417e04828235a6 || >=de66754e9f8029f8ae955a588959b99cab56b506 <49f6e3c3ef19f04f6657ed8dce550e36c763abb8 | 99d00a9e35e311a91d258029d5bb584377296c34, a3eaf82ff842d6ca95937ea584417e04828235a6, 49f6e3c3ef19f04f6657ed8dce550e36c763abb8 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-64464 records a Unknown severity vulnerability in xhci: sideband: fix ring sg table pages leak. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=de66754e9f8029f8ae955a588959b99cab56b506 <99d00a9e35e311a91d258029d5bb584377296c34 || >=de66754e9f8029f8ae955a588959b99cab56b506 <a3eaf82ff842d6ca95937ea584417e04828235a6 || >=de66754e9f8029f8ae955a588959b99cab56b506 <49f6e3c3ef19f04f6657ed8dce550e36c763abb8 | 99d00a9e35e311a91d258029d5bb584377296c34, a3eaf82ff842d6ca95937ea584417e04828235a6, 49f6e3c3ef19f04f6657ed8dce550e36c763abb8 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.