Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-90549.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-90549
Upstream
Published
2026-06-24T08:16:22Z
Modified
2026-08-28T17:47:53Z
Summary
CVE-2026-52921 affecting package kernel for versions less than 6.6.143.1-1
Details

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

netfilter: ipset: stop hash:* range iteration at end

The following hash set variants:

hash:ip,mark hash:ip,port hash:ip,port,ip hash:ip,port,net

iterate IPv4 ranges with a 32-bit iterator.

The iterator must stop once the last address in the requested range has been processed. Advancing it once more can move the traversal state past the end of the request, so a later retry may continue from an unintended position.

Handle the iterator increment explicitly at the end of the loop and stop once the upper bound has been processed. This keeps the existing retry behaviour intact for valid ranges while preventing traversal from continuing past the original boundary.

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
6.6.143.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-90549.json"