CVE-2026-46064: ibmasm: fix heap over-read in ibmasm_send_i2o_message()
Published May 27, 2026
·Updated
ibmasm: fix heap over-read in ibmasmsendi2omessage()
Affected Software
14 affected componentsFixes available
Linux Linux kernel (ibmasm)
Linux Linux kernel>=2.6.12.1<5.10.258
Linux Linux kernel>=5.11<5.15.209
Linux Linux kernel>=5.16<6.1.175
Linux Linux kernel>=6.2<6.6.140
Linux Linux kernel>=6.7<6.12.86
Linux Linux kernel>=6.13<6.18.27
Linux Linux kernel>=6.19<7.0.4
Linux Linux kernel=2.6.12
Linux Linux kernel=2.6.12-rc2
Linux Linux kernel=2.6.12-rc3
Linux Linux kernel=2.6.12-rc4
Linux Linux kernel=2.6.12-rc5
Microsoft azl3 kernel 6.6.139.1-1<6.6.141.1-1
6.6.141.1-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.141.1-1
Event History
May 27, 2026
CVE Published
via MITRE·12:57 PM
Data Sourced
via MITRE·12:57 PM
Description
Data Sourced
via NVD·02:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
May 28, 2026
Data Sourced
via Microsoft·08:01 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:01 AM
Affected Software
Updated
via Microsoft·08:01 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-46064?
The severity of CVE-2026-46064 is rated as high with a score of 7.1.
2
How do I fix CVE-2026-46064?
To fix CVE-2026-46064, ensure you update to the patched version of the Linux kernel that addresses this vulnerability.
3
What does CVE-2026-46064 affect?
CVE-2026-46064 affects the ibmasm component of the Linux kernel.
4
What type of vulnerability is CVE-2026-46064?
CVE-2026-46064 is a heap over-read vulnerability in the ibmasm_send_i2o_message() function.
5
What are the potential impacts of CVE-2026-46064?
The potential impacts of CVE-2026-46064 include a denial of service due to heap over-read.