CVE-2026-53032: bpf: Fix NULL deref in map_kptr_match_type for scalar regs
Published Jun 24, 2026
·Updated
bpf: Fix NULL deref in mapkptrmatchtype for scalar regs
Affected Software
7 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.139.1-1<6.6.143.1-1
6.6.143.1-1
Linux Linux kernel>=6.4.16<6.5
Linux Linux kernel>=6.5.3<6.6.141
Linux Linux kernel>=6.7<6.12.91
Linux Linux kernel>=6.13<6.18.33
Linux Linux kernel>=6.19<7.0.10
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 6.6.143.1-1
Event History
Jun 24, 2026
CVE Published
via MITRE·04:29 PM
Data Sourced
via MITRE·04:29 PM
Description
Data Sourced
via NVD·05:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jun 27, 2026
Data Sourced
via Microsoft·08:12 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:12 AM
Affected Software
Updated
via Microsoft·08:12 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-53032?
The severity of CVE-2026-53032 is medium, rated at 5.5.
2
What type of vulnerability is CVE-2026-53032?
CVE-2026-53032 is classified as a Null Pointer Dereference vulnerability.
3
How do I fix CVE-2026-53032?
To fix CVE-2026-53032, you should update to the latest version of the Linux kernel or apply the relevant patches.
4
What impact does CVE-2026-53032 have on my system?
CVE-2026-53032 can lead to a denial of service due to a NULL dereference in the Linux kernel.
5
Which software is affected by CVE-2026-53032?
CVE-2026-53032 affects the Linux kernel and Microsoft azl3 kernel 6.6.139.1-1.