Bluetooth: btrtl: Don't leak return code when parsing firmware format v2 (CVE-2026-97907) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-97907

Bluetooth: btrtl: Don't leak return code when parsing firmware format v2

Answer in brief

CVE-2026-97907 records a Unknown severity vulnerability in Bluetooth: btrtl: Don't leak return code when parsing firmware format v2. 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 25, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 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	>=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <90f3a142b5f8596a565b8e080d18a8050be6edef \|\| >=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <422f6547259654bae690713614c794dd1e2c0a0b \|\| >=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <c4249cf6e80b1bd62a6a409aaabe760fe025dac3 \|\| >=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <83e3e515fd261600ed8491fb0a8bcdfb115c904e	90f3a142b5f8596a565b8e080d18a8050be6edef, 422f6547259654bae690713614c794dd1e2c0a0b, c4249cf6e80b1bd62a6a409aaabe760fe025dac3, 83e3e515fd261600ed8491fb0a8bcdfb115c904e
Linux/Linuxgeneric	6.4	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 90f3a142b5f8596a565b8e080d18a8050be6edef if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: Don't leak return code when parsing firmware format v2 When key_id from chip is zero, rtlbt_parse_firmware_v2() intentionally ignores all security headers. However, the implementation simply breaks from a switch statement and leaks uninitialized return code `rc' (if the first section is a security one) or the previous section's `rc'. Fix it by really skipping a loop with `continue'. For consistency and readability, also do the same for the default case.

Quoted source text, attributed separately from HOL analysis.