CVE-2026-23359: bpf: Fix stack-out-of-bounds write in devmap
Published Mar 25, 2026
·Updated
bpf: Fix stack-out-of-bounds write in devmap
Affected Software
16 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.126.1-1
Linux Linux kernel>=5.15.1<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=5.15
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6
Linux Linux kernel=7.0-rc7
Event History
Mar 25, 2026
CVE Published
via MITRE·10:27 AM
Data Sourced
via MITRE·10:27 AM
Description
Data Sourced
via NVD·11:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
Mar 26, 2026
Data Sourced
via Microsoft·08:02 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:02 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-23359?
CVE-2026-23359 has been classified as a high severity vulnerability due to the potential for stack-out-of-bounds writes that can lead to system instability.
2
How do I fix CVE-2026-23359?
To fix CVE-2026-23359, upgrade to the latest patched version of the Linux kernel that addresses this vulnerability.
3
What are the potential impacts of CVE-2026-23359?
CVE-2026-23359 can lead to arbitrary code execution or crashes, affecting the normal operation of systems running the vulnerable Linux kernel.
4
Which versions of the Linux kernel are affected by CVE-2026-23359?
CVE-2026-23359 affects certain versions of the Linux kernel that utilize the devmap feature, necessitating an upgrade to mitigate the risk.
5
Is there a known exploit for CVE-2026-23359?
As of now, no specific exploits for CVE-2026-23359 have been publicly disclosed, but the nature of the vulnerability poses a significant risk.