In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the… (CVE-2026-52928)
In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.
AI Analysis
Technical Summary
This vulnerability concerns the handling of the SIOCATMARK operation in the af_unix socket implementation on Microsoft software version 3.0. Specifically, the system rejects SIOCATMARK requests on sockets that are not of stream type. No further technical details or exploitation methods are described in the available data.
Potential Impact
The impact details are not provided in the source data. There are no known exploits in the wild, and no CVSS score is assigned. Without additional information, the precise impact on confidentiality, integrity, or availability cannot be determined.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the… (CVE-2026-52928)
Description
In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the handling of the SIOCATMARK operation in the af_unix socket implementation on Microsoft software version 3.0. Specifically, the system rejects SIOCATMARK requests on sockets that are not of stream type. No further technical details or exploitation methods are described in the available data.
Potential Impact
The impact details are not provided in the source data. There are no known exploits in the wild, and no CVSS score is assigned. Without additional information, the precise impact on confidentiality, integrity, or availability cannot be determined.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-52928
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a42ed8427e9c7971994f301
Added to database: 06/29/2026, 22:11:16 UTC
Last enriched: 06/29/2026, 22:46:34 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 11
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