CVE-2026-74361 nvme: fix FDP fdpcidx bounds check
An off-by-one error in the NVMe FDP bounds check allows invalid index usage, potentially leading to undefined behavior or memory access issues.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-74361?
CVE-2026-74361 is a critical 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:
nvme: fix FDP fdpcidx bounds check
The fdpcidx bounds check sets n = NUMFDPC + 1 but used > instead of >=, incorrectly accepting fdp_idx when it equals n (i.e. NUMFDPC + 1).
Which versions are affected by CVE-2026-74361?
How do I fix CVE-2026-74361?
Apply the vendor's patch.
Is CVE-2026-74361 being exploited?
There is no known exploitation of CVE-2026-74361 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-74361, DEBIAN-CVE-2026-74361, GHSA-597p-qxfw-c3vg, UBUNTU-CVE-2026-74361.