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VULNERABILITIES

CVE-2026-74297 Details

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size set_rq_size() computes the RQ WQE size as "1 << rq_wqe_shift" based on the user-provided rq_wqe_shift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shift of 31 also overflows a signed integer, leading to undefined behavior. Use check_shl_overflow() to compute the RQ WQE size and reject any invalid values.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823 kernel.org
https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b kernel.org
https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda kernel.org
https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026 kernel.org
https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74297
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 17, 2026
Source:
kernel.org
CVE-2026-74297 Details - Not Deferred