CVE-2026-46117: linux kernel from 6.8 (inclusive), before 6.12.91 (exclusive), from 6.13 (inclusive), before 6.18.30 (exclusive), from…

Affected technology

linux kernel · from 6.8 (inclusive), before 6.12.91 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.30 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 7.0.7 (exclusive)
linux

linux kernel · 7.1 · update rc1
linux

linux kernel · 7.1 · update rc2
linux

Linux · c15d7802a42402a87880a17eee89ff023e49ecc0 to before 9cc0c6b1ba8cd5c55aef043e1384de0a8b4efa71, c15d7802a42402a87880a17eee89ff023e49ecc0 to before 9ef65af26b2a6738bf15812042e84b3112402d3a, c15d7802a42402a87880a17eee89ff023e49ecc0 to before db991ba50087ad99fa12a2c483aa3be19671ea73, c15d7802a42402a87880a17eee89ff023e49ecc0 to before 159f2efabc89d3f931d38f2d35876535d4abf0a3
Linux

Linux · 6.8
Linux

Red Hat Enterprise Linux 10 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 8 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 9 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 6 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 7 · Exact affected versions not specified by the source
Red Hat

Component: Not specified by the source
File: drivers/infiniband/hw/mana/cq.c

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Sashiko points out that the user can specify WQs sharing the same CQ as a part of the uAPI and this will trigger the WARN_ON() then go on to corrupt the kernel. Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 7.0/10) rates confidentiality, integrity and availability impact as high.