CVE-2026-74280 crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
A logic error in the Marvell OcteonTX crypto driver causes incorrect DMA unmapping, potentially leading to memory leaks or system instability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-74280?
CVE-2026-74280 is a critical memory corruption vulnerability in Linux, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
The sg_cleanup path used list[i] instead of list[j] when unmapping DMA buffers, leaking successfully mapped entries and repeatedly unmapping the failed one.
Which versions are affected by CVE-2026-74280?
How do I fix CVE-2026-74280?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-74280 being exploited?
There is no known exploitation of CVE-2026-74280 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-74280, DEBIAN-CVE-2026-74280, GHSA-846g-2xvr-929f, UBUNTU-CVE-2026-74280.