VDB
CVE-2026-43069
CVE-2026-43069
PUBLISHED
CVSS 9.300000190734863 CRITICAL
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.
EPSS 0.01% · 2.4th percentile
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.01%
2.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 6.12.80, 6.18.21, 6.19.11 |
| linux | linux_kernel | 4.12, 4.12, 4.12 |
Timeline
- May 5, 2026 CVE Published
- May 5, 2026 PoC Published
- May 5, 2026 Security Advisory
- May 6, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
References
- https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17 url
- https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86 url
- https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213 url
- https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a url
- https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa url
- https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b url
- https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b url
- https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-43069 advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00051.html advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00052.html advisory