CVE-2026-97907

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

N/A
Published: September 25, 2026 at 10:22 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.49a24ce5e29b15c4c6b0c89c04f9df6ce14addefa
Vendor states this is fixed in 422f6547259654bae690713614c794dd1e2c0a0b (fixed)
Vendor states this is fixed in 83e3e515fd261600ed8491fb0a8bcdfb115c904e (fixed)
Vendor states this is fixed in 90f3a142b5f8596a565b8e080d18a8050be6edef (fixed)
Vendor states this is fixed in ba96047bba4a6101267cf4f6b3057cbc58e6c554 (fixed)
Vendor states this is fixed in c4249cf6e80b1bd62a6a409aaabe760fe025dac3 (fixed)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card