CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2026-46181: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()

mediumCVSS 5.5CVE-2026-46181

CSIRTS triage

vendor: Linuxproduct: Linux kernelMemory corruption
What
Misuse of RCU synchronization in mlx4 InfiniBand SRQ event handler.
Who is affected
Linux systems using Mellanox ConnectX InfiniBand adapters with kernel RDMA.
Urgency
Medium (CVSS 5.5); RCU misuse may cause race conditions or memory corruption.
Action
Update to patched Linux kernel version.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Linux kernel

Get an email when a new Linux kernel advisory drops — max one per day, one-click unsubscribe.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46181

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-46181coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

More from Microsoft Security Response Center