CVE-2026-74280: Linux kernel · crypto: marvell/octeontx – fix DMA cleanup using wrong loop index
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 10.0 Critical · fixed in 5.15.0-1117.124~20.04.1 : patch Linux kernel as a priority.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% 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 +42
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation 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.
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
An official patch is available and should be applied to affected Linux kernel versions. Users should update to the fixed versions as provided by their Linux distribution vendors. No additional mitigation steps are indicated beyond applying the patch.
Description
A vulnerability in the Linux kernel's crypto subsystem for Marvell OcteonTX was fixed. The issue involved incorrect DMA cleanup using the wrong loop index, causing some DMA buffers to leak and others to be unmapped repeatedly. This flaw could lead to serious security impacts including confidentiality, integrity, and availability breaches. Multiple specific Linux kernel versions are affected. A patch is available to address this vulnerability.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74280 (opens in a new tab)
- git.kernel.org/stable/c/5f99a396f706afc749448659d1565991330e4f71 (opens in a new tab)
- git.kernel.org/stable/c/6c721a3e43344f8560ee4ef506fc1f72b4646dcd (opens in a new tab)
- git.kernel.org/stable/c/7891c64c0520519782470ba29bac8a5761e295d8 (opens in a new tab)
- git.kernel.org/stable/c/8a0db9fad3c97e6447a92417cb95d7c55eaa9530 (opens in a new tab)
- git.kernel.org/stable/c/8d301e5a51173ba56ce4f632a2a33bf6b14b0fcf (opens in a new tab)
- git.kernel.org/stable/c/97f150ba3e372256eabb93bd80c2cf3740077fb5 (opens in a new tab)
- git.kernel.org/stable/c/acff30cfc0d72465b51b0bfdf019f1cb54e15314 (opens in a new tab)
- git.kernel.org/stable/c/ed374dbc70c10c4a864414b3d9c257faec8fd485 (opens in a new tab)
- ubuntu.com/security/CVE-2026-74280 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74280 (opens in a new tab)
- git.kernel.org/linus/7891c64c0520519782470ba29bac8a5761e295d8 (opens in a new tab)
- ubuntu.com/security/notices/USN-8781-1 (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)