CVE-2024-57890: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevent integer overflow issue In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to uverbs_request_next_ptr() which also could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)" multiplication can also overflow on 32bit systems although it's fine on 64bit systems. This patch does two things. First, I've re-arranged the condition in uverbs_request_next_ptr() so that the use controlled variable "len" is on one side of the comparison by itself without any math. Then I've modified all the callers to use size_mul() for the multiplications.

Affected products

• Linux Linux Kernel: from 2.6.15, before 5.4.289 (fixed in 5.4.289); from 5.5, before 5.10.233 (fixed in 5.10.233); from 5.11, before 5.15.176 (fixed in 5.15.176); from 5.16, before 6.1.124 (fixed in 6.1.124); from 6.2, before 6.6.70 (fixed in 6.6.70); from 6.7, before 6.12.9 (fixed in 6.12.9); …

Published 2025-01-15. Last modified 2026-06-17.