CVE-2026-74377

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74377

Key Details

CVE	CVE-2026-74377
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path

For non-SRQ QPs, the responder reads WQE fields directly from the

shared queue buffer mapped into userspace. This allows a malicious

user to modify fields like num_sge or sge entries while the kernel

is processing the WQE, leading to out-of-bounds reads in

rxe_resp_check_length() and copy_data().

Introduce get_recv_wqe() that validates num_sge and copies the WQE

to a kernel-local buffer before processing, matching the approach

already used for SRQ WQEs in get_srq_wqe(). The srq_wqe buffer is

reused since SRQ and non-SRQ paths are mutually exclusive per QP. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74377
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74377

Source

Reference

NVD

CVE