High severity7.8NVD Advisory· Published Aug 26, 2026· Updated Aug 26, 2026
CVE-2026-58090
CVE-2026-58090
Description
The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from the socket buffer before processing them. Some error paths would free those messages, leaving freed data mbufs in the receive socket buffer.
An unprivileged local user can exploit this use-after-free to escalate privileges.
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Affected products
1Patches
Vulnerability mechanics
References
1News mentions
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