CVE-2026-43069Bluetooth: hci_ll: Fix firmware leak on error path
- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ll: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hci_ll.c:587 download_firmware() warn: 'fw' from request_firmware() not released on lines: 544. In download_firmware(), if request_firmware() succeeds but the returned firmware content is invalid (no data or zero size), the function returns without releasing the firmware, resulting in a resource leak. Fix this by calling release_firmware() before returning when request_firmware() succeeded but the firmware content is invalid.
Timeline
ID reserved
By Linux
- 4 days later
· 4 days later
Published
- 6 days later
· 6 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 98% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 371805522f870986144fcd88727a47858e364a2c – < 95e8601af227b2b4390eecf8db6abdb9f6a91f17
- affected 371805522f870986144fcd88727a47858e364a2c – < e6d95488c8c964d1df0d3e1db44c958706311e86
- affected 371805522f870986144fcd88727a47858e364a2c – < b2dfbf1b5ff192cefd49574b951a4af9ddd32213
- affected 371805522f870986144fcd88727a47858e364a2c – < 28904375d54b436a757641fb0331537778c0de5a
- affected 371805522f870986144fcd88727a47858e364a2c – < 5213ef54528dd1ac79b846e30d8f72ce092794aa
- affected 371805522f870986144fcd88727a47858e364a2c – < 9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
- affected 371805522f870986144fcd88727a47858e364a2c – < a7803df606a7d22e896b030f619e1d9d20ae0c6b
- affected 371805522f870986144fcd88727a47858e364a2c – < 31148a7be723aa9f2e8fbd62424825ab8d577973
- affected 4.12
- unaffected < 4.12
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.168 – ≤ 6.1.*
- unaffected 6.6.131 – ≤ 6.6.*
- unaffected 6.12.80 – ≤ 6.12.*
- unaffected 6.18.21 – ≤ 6.18.*
- unaffected 6.19.11 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17 (opens in a new tab)
- https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86 (opens in a new tab)
- https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213 (opens in a new tab)
- https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a (opens in a new tab)
- https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa (opens in a new tab)
- https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b (opens in a new tab)
- https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b (opens in a new tab)
- https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-27371 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-43069)Record last updated .