Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80601.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-80601
Upstream
Published
2026-03-25T11:16:39Z
Modified
2026-08-28T17:46:33.985342087Z
Summary
CVE-2026-23388 affecting package kernel for versions less than 6.6.130.1-1
Details

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

Squashfs: check metadata block offset is within range

Syzkaller reports a "general protection fault in squashfscopydata"

This is ultimately caused by a corrupted index look-up table, which produces a negative metadata block offset.

This is subsequently passed to squashfscopydata (via squashfsreadmetadata) where the negative offset causes an out of bounds access.

The fix is to check that the offset is within range in squashfsreadmetadata. This will trap this and other cases.

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
6.6.130.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80601.json"