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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97907
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:17 UTC
Updated2026-10-19 10:17:41 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.002000000 probability, percentile 0.089120000 (date 2026-10-05)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa ba96047bba4a6101267cf4f6b3057cbc58e6c554 git Not specified
CNA Linux Linux affected 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa 90f3a142b5f8596a565b8e080d18a8050be6edef git Not specified
CNA Linux Linux affected 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa 422f6547259654bae690713614c794dd1e2c0a0b git Not specified
CNA Linux Linux affected 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa c4249cf6e80b1bd62a6a409aaabe760fe025dac3 git Not specified
CNA Linux Linux affected 9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa 83e3e515fd261600ed8491fb0a8bcdfb115c904e git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/90f3a142b5f8596a565b8e080d18a8050be6edef 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/83e3e515fd261600ed8491fb0a8bcdfb115c904e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/422f6547259654bae690713614c794dd1e2c0a0b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c4249cf6e80b1bd62a6a409aaabe760fe025dac3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ba96047bba4a6101267cf4f6b3057cbc58e6c554 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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