AZL-48504
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-48504.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-48504
- Upstream
- Published
- 2024-08-21T01:15:11Z
- Modified
- 2026-04-21T04:33:02Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- CVE-2024-43873 affecting package kernel for versions less than 5.15.167.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vhost/vsock: always initialize seqpacket_allow
There are two issues around seqpacket_allow:
- seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized.
- if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this).
To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features
- References