CVE-2026-45856

Public on 2026-05-27
Modified on 2026-06-15
Description
In the Linux kernel, the following vulnerability has been resolved:

RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Kernel-5.4 Extra kernel Pending Fix
Amazon Linux 2 - Core kernel Not Affected
Amazon Linux 2 - Kernel-5.10 Extra kernel 2026-04-01 ALAS2KERNEL-5.10-2026-115 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2026-04-30 ALAS2KERNEL-5.15-2026-100 Fixed
Amazon Linux 2023 kernel 2026-04-07 ALAS2023-2026-1544 Fixed
Amazon Linux 2023 kernel6.12 2026-04-07 ALAS2023-2026-1543 Fixed
Amazon Linux 2023 kernel6.18 2026-03-27 ALAS2023-2026-1514 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H