CVE-2026-43069

MEDIUM EPSS 1.8%
Published May 5, 20261mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 5, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥4.12  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.131
linuxlinux_kernel*≥6.7  –  <6.12.80
linuxlinux_kernel*≥6.13  –  <6.18.21
linuxlinux_kernel*≥6.19  –  <6.19.11
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86
    Patch