Out-of-bounds Write Affecting openshift/ose-rhel-coreos-8 package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFTOSERHELCOREOS8-21400700
  • published21 Oct 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

CVE-2026-90435  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 openshift/ose-rhel-coreos-8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift/ose-rhel-coreos-8 package and not the openshift/ose-rhel-coreos-8 package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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

RDMA/mlx5: Fix integer overflow of user QP buffer size

set_user_buf_size() computes the QP buffer size by left-shifting the user-supplied rq.wqe_cnt and rq.wqe_shift values as signed integers. A sufficiently large rq.wqe_cnt causes signed integer overflow, which is undefined behavior, and yields a small or negative buf_size, causing ib_umem_get() to map a buffer smaller than the hardware will actually write into.

Replace the shifts and addition with check_shl_overflow() and check_add_overflow(), rejecting invalid user inputs.

Moreover, guard the identical shift computing qp->sq.offset in _create_user_qp() before set_user_buf_size() is reached.

CVSS Base Scores

version 3.1