usb: fix UAF when probe runs concurrent to dyn ID removal (CVE-2026-93117) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93117

usb: fix UAF when probe runs concurrent to dyn ID removal

Answer in brief

CVE-2026-93117 records a Unknown severity vulnerability in usb: fix UAF when probe runs concurrent to dyn ID removal. 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.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=0c7a2b72746a96f999fd2728520d03d94879be69 <9b82ddf76827e2a8ff033a8131ecf24f2d6cae26 \|\| >=0c7a2b72746a96f999fd2728520d03d94879be69 <44904468e58d3dc3a0229782acbeb9677b060541 \|\| >=0c7a2b72746a96f999fd2728520d03d94879be69 <64320c6e721bdec4c43a789c866c8a099dd0c843 \|\| >=0c7a2b72746a96f999fd2728520d03d94879be69 <7e795801295c84a6bbc10a3e7a4c99c50bfe45ac \|\| >=0c7a2b72746a96f999fd2728520d03d94879be69 <e6a9c6b79b70046afdf5a1dbd03b1104536f30c0 \|\| >=0c7a2b72746a96f999fd2728520d03d94879be69 <ef8154d8b52d60338c1fd8d793cd8e891c604c14	9b82ddf76827e2a8ff033a8131ecf24f2d6cae26, 44904468e58d3dc3a0229782acbeb9677b060541, 64320c6e721bdec4c43a789c866c8a099dd0c843, 7e795801295c84a6bbc10a3e7a4c99c50bfe45ac, e6a9c6b79b70046afdf5a1dbd03b1104536f30c0, ef8154d8b52d60338c1fd8d793cd8e891c604c14
Linux/Linuxgeneric	2.6.33	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 9b82ddf76827e2a8ff033a8131ecf24f2d6cae26 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe. USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.

Quoted source text, attributed separately from HOL analysis.