Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77169.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-77169
Upstream
Published
2026-01-25T15:15:54Z
Modified
2026-08-28T17:47:51Z
Summary
CVE-2026-23001 affecting package kernel for versions less than 6.6.126.1-1
Details

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

macvlan: fix possible UAF in macvlan_forward_source()

Add RCU protection on (struct macvlan_source_entry)->vlan.

Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointer before RCU grace period starts.

This allows macvlan_forward_source() to skip over entries queued for freeing.

Note that macvlan_dev are already RCU protected, as they are embedded in a standard netdev (netdev_priv(ndev)).

https: //lore.kernel.org/netdev/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u

References

Affected packages

Azure Linux:3 / kernel

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.6.126.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77169.json"