CVE-2026-74296

High

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one Free the UAR index returned by the hardware.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux
PublishedAug 15, 2026
First seenAug 15, 2026

How to fix

Update
  • Linux Linux80f1f49f53a42733e60c90e0ec545e647969214d, aabfc845838ef453f1d22d7665596f9cc48be7dd, 6f83de384ca582fa87b4c2b0d03bd1ed3bf9a2ee, d3ff718c0c7153e2641e6a09507bace14fc5c402, ef369446f62903ea079e8a7954b5bf8bb8300fe3, 449ae7927152e46acbe5f19f97eafdae6d3a96b1 or later

Affected products

ProductAffected versionsFixed in
Linux Linux4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < 80f1f49f53a42733e60c90e0ec545e647969214d, 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < aabfc845838ef453f1d22d7665596f9cc48be7dd, 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < 6f83de384ca582fa87b4c2b0d03bd1ed3bf9a2ee, 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < d3ff718c0c7153e2641e6a09507bace14fc5c402, 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < ef369446f62903ea079e8a7954b5bf8bb8300fe3, 4ed131d0bb1597ce12fff22d9d7fc9720a6e8cf0 ≤ v < 449ae7927152e46acbe5f19f97eafdae6d3a96b1, 4.1680f1f49f53a42733e60c90e0ec545e647969214d, aabfc845838ef453f1d22d7665596f9cc48be7dd, 6f83de384ca582fa87b4c2b0d03bd1ed3bf9a2ee, d3ff718c0c7153e2641e6a09507bace14fc5c402, ef369446f62903ea079e8a7954b5bf8bb8300fe3, 449ae7927152e46acbe5f19f97eafdae6d3a96b1

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CVE-2026-74296 · Linux · Dark Radar