CVE-2026-80902: Linux kernel · dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA
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 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- 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 +26
Exploitation evidence
Disclosed: evidence found.
CVE published 4 Sep 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.
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 should be applied to affected linux-aws kernel versions to resolve the issue. The vendor advisory confirms the fix is included in updated kernel releases. Users should update to the fixed versions to mitigate this vulnerability.
Description
A vulnerability in the Linux kernel's dmaengine sun6i-dma driver caused improper reclamation of active DMA descriptors during termination, leaking non-cyclic descriptors and their linked list items. The issue was fixed by using a function that properly handles both cyclic and non-cyclic descriptors and prevents list corruption. This flaw affects specific linux-aws kernel versions and has been patched.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80902 (opens in a new tab)
- git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2 (opens in a new tab)
- git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b (opens in a new tab)
- git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43 (opens in a new tab)
- git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf (opens in a new tab)
- git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c (opens in a new tab)
- git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0 (opens in a new tab)
- git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6 (opens in a new tab)
- git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb (opens in a new tab)
- ubuntu.com/security/CVE-2026-80902 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80902 (opens in a new tab)
- git.kernel.org/linus/ab1150115e68a46b687eb38c1ab92782018c9f2c (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-8875-2 (opens in a new tab)