CVE-2025-68811 svcrdma: use rc_pageoff for memcpy byte offset
A memory corruption vulnerability in the Linux kernel's svcrdma module allows attackers to execute arbitrary code or escalate privileges via incorrect memory offset handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68811?
CVE-2025-68811 is a critical memory corruption vulnerability in Linux, published on 13 Jan 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:
svcrdma: use rc_pageoff for memcpy byte offset
svc_rdma_copy_inline_range added rc_curpage (page index) to the page base instead of the byte offset rc_pageoff. Use rc_pageoff so copies land within the current page.
Found by ZeroPath (https://zeropath.com)
Weakness: CWE-787
Which versions are affected by CVE-2025-68811?
How do I fix CVE-2025-68811?
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-2025-68811 being exploited?
There is no known exploitation of CVE-2025-68811 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68811, DEBIAN-CVE-2025-68811, GHSA-2gq5-6pmr-v24v, ROOT-OS-DEBIAN-13-CVE-2025-68811, ROOT-OS-UBUNTU-2404-CVE-2025-68811, UBUNTU-CVE-2025-68811.