Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81843.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-81843
Upstream
Published
2026-04-03T16:16:28Z
Modified
2026-08-31T05:26:27Z
Summary
CVE-2026-23442 affecting package kernel for versions less than 6.6.137.1-2
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv6: add NULL checks for idev in SRv6 paths

_in6devget() can return NULL when the device has no IPv6 configuration (e.g. MTU < IPV6MINMTU or after NETDEVUNREGISTER).

Add NULL checks for idev returned by _in6devget() in both seg6hmacvalidateskb() and ipv6srhrcv() to prevent potential NULL pointer dereferences.

References

Affected packages

Azure Linux:3 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.6.137.1-2

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81843.json"