CVE-2022-50756: Linux

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix mempool alloc size Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries. The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool. While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence.

Affected products

• Linux Linux: from 4.18, before 5.10.163 (fixed in 5.10.163); from 5.11, before 5.15.87 (fixed in 5.15.87); from 5.16, before 6.0.17 (fixed in 6.0.17); from 6.1, before 6.1.3 (fixed in 6.1.3)

Published 2025-12-24. Last modified 2026-08-04.