CVE-2026-72475 dmaengine: dma-axi-dmac: Properly free struct axi_dmac_desc
A memory management flaw in the Linux kernel AXI DMA driver allows attackers to cause denial of service or potentially execute code via improper descriptor freeing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72475?
CVE-2026-72475 is a memory corruption vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: dma-axi-dmac: Properly free struct axi_dmac_desc
Use axi_dmac_free_desc() to free fully the descriptor at fail path when call axi_dmac_alloc_desc() in axi_dmac_prep_peripheral_dma_vec().
Which versions are affected by CVE-2026-72475?
How do I fix CVE-2026-72475?
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-2026-72475 being exploited?
There is no known exploitation of CVE-2026-72475 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72475, DEBIAN-CVE-2026-72475, GHSA-gx55-m2rg-vq3h, UBUNTU-CVE-2026-72475.