CVE-2026-23289: IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()
Published Mar 25, 2026
·Updated
IB/mthca: Add missed mthcaunmapuserdb() for mthcacreatesrq()
Affected Software
11 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.126.1-1
Linux Linux kernel>=2.6.14<5.10.253
Linux Linux kernel>=5.11<5.15.203
Linux Linux kernel>=5.16<6.1.167
Linux Linux kernel>=6.2<6.6.130
Linux Linux kernel>=6.7<6.12.77
Linux Linux kernel>=6.13<6.18.17
Linux Linux kernel>=6.19<6.19.7
Linux Linux kernel=7.0-rc1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1
Event History
Mar 25, 2026
CVE Published
via MITRE·10:26 AM
Data Sourced
via MITRE·10:26 AM
Description
Data Sourced
via NVD·11:16 AM
RemedyDescriptionSeverityAffected Software
Mar 26, 2026
Data Sourced
via Microsoft·08:06 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-23289?
CVE-2026-23289 is a high-severity vulnerability due to a user-triggerable memory leak in the Linux kernel.
2
How do I fix CVE-2026-23289?
To fix CVE-2026-23289, update your Linux kernel to the latest stable release that includes the patch for this vulnerability.
3
Which software versions are affected by CVE-2026-23289?
CVE-2026-23289 affects specific versions of the Linux kernel and the Microsoft azl3 kernel 6.6.126.1-1.
4
What vulnerability does CVE-2026-23289 address?
CVE-2026-23289 addresses a missed unmapping function for user databases during the creation of shared receive queues in the Linux kernel.
5
Who reported CVE-2026-23289?
CVE-2026-23289 was identified and reported by Linux kernel maintainers.