CVE-2026-72268: Linux kernel · fbdev: tdfxfb: fix potential memory leak in tdfxfb_probe()
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1117.124~20.04.1 : update Linux kernel when convenient.
Data as of 28 Oct 2026, 02:50 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +55
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther 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 patch is available and has been released in multiple fixed Linux kernel versions including 5.15.0-1117.124~20.04.1 and later. Users and administrators should update to these fixed kernel versions to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Description
A potential memory leak vulnerability was identified and fixed in the Linux kernel's fbdev subsystem, specifically in the tdfxfb_probe() function. The issue involved allocated memory for modelist not being freed on error paths when CONFIG_FB_3DFX_I2C is defined. This flaw has been addressed by adding a call to fb_destroy_modelist() to properly free memory.
References
- ubuntu.com/security/CVE-2026-72268 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72268 (opens in a new tab)
- git.kernel.org/linus/bb019d755366cc3e777a12d4bf457ff289837370 (opens in a new tab)
- git.kernel.org/stable/c/2199d70efc5bea0e9b4462a4f9e4c3d3c21c5d34 (opens in a new tab)
- git.kernel.org/stable/c/237611edf15172e4dc7fa9b3b71c2445602d3459 (opens in a new tab)
- git.kernel.org/stable/c/2fd16a94bea5e0c3e93791436cf8a800b175762a (opens in a new tab)
- git.kernel.org/stable/c/b039e0693df003c5baa1e89630344f92a78afb15 (opens in a new tab)
- git.kernel.org/stable/c/b7b26adc2718ca8f81ca75cd03aee94269d00e8a (opens in a new tab)
- git.kernel.org/stable/c/bb019d755366cc3e777a12d4bf457ff289837370 (opens in a new tab)
- git.kernel.org/stable/c/dfbb1a695d8891774c80c0e2a9192afb66469eb7 (opens in a new tab)
- git.kernel.org/stable/c/e1ca9b8559e0f5959228626bdeaae530a1ee0337 (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)