CVE-2026-43069
Bluetooth: hci_ll: Fix firmware leak on error path
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.12
References 8
git.kernel.org
- stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17
- stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86
- stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213
- stable/c/28904375d54b436a757641fb0331537778c0de5a
- stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa
- stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
- stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b
- stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973