CVE-2024-26896: Linux kernel · wifi: wfx: fix memory leak when starting AP
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 5.15.0-1095.102~20.04.1 : update Linux kernel when convenient.
Data as of 12 Nov 2026, 19:05 UTC
- Patch
- Available – fixed in 5.15.0-1095.102~20.04.1, 5.15.0-1098.107~20.04.1, 5.15.0-1095.104~20.04.1 +38
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Apr 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-6816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-6 (opens in a new tab)
- ubuntu.com/security/notices/USN-7933-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available and has been released in multiple Linux kernel versions including 5.15.0-1095.102~20.04.1 and later. Users should upgrade to these fixed kernel versions to remediate the vulnerability. No additional mitigation is required as the issue is resolved by the patch.
Description
CVE-2024-26896 is a vulnerability in the Linux kernel's wfx WiFi driver that causes a memory leak when starting an access point (AP). The issue arises because memory allocated by ieee80211_beacon_get() is not released in the wfx_set_mfp_ap() function. This leak was detected by kmemleak and fixed in several Linux kernel versions. The vulnerability has a medium severity score and does not impact confidentiality or integrity but can cause denial of service due to resource exhaustion.
References
- ubuntu.com/security/CVE-2024-26896 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-26896 (opens in a new tab)
- git.kernel.org/linus/b8cfb7c819dd39965136a66fe3a7fde688d976fc (opens in a new tab)
- git.kernel.org/stable/c/a1f57a0127b89a6b6620514564aa7eaec16d9af3 (opens in a new tab)
- git.kernel.org/stable/c/3a71ec74e5e3478d202a1874f085ca3ef40be49b (opens in a new tab)
- git.kernel.org/stable/c/12f00a367b2b62756e0396f14b54c2c15524e1c3 (opens in a new tab)
- git.kernel.org/stable/c/dadbb5d29d6c5f571a50272fce8c1505a9559487 (opens in a new tab)
- git.kernel.org/stable/c/b8cfb7c819dd39965136a66fe3a7fde688d976fc (opens in a new tab)
- ubuntu.com/security/notices/USN-6816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6817-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-7829-6 (opens in a new tab)
- ubuntu.com/security/notices/USN-7933-1 (opens in a new tab)