kernel: sctp: purge outqueue on stale COOKIE-ECHO handling

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. This vulnerability, a use-after-free, occurs when the system processes a Stale Cookie ERROR during the setup or reconfiguration of an SCTP association. A remote attacker could exploit this by sending...

sctp: purge outqueue on stale COOKIE-ECHO handling

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SUSE CVE-2026-52924

In the Linux kernel, the following vulnerability has been resolved: sctp: purge outqueue on stale COOKIE-ECHO handling sctpstreamupdate is only invoked when the association is moved into COOKIEWAIT during association setup/reconfiguration. In this path, the outbound stream scheduler state...

CVE-2026-52924 sctp: purge outqueue on stale COOKIE-ECHO handling

In the Linux kernel, the following vulnerability has been resolved: sctp: purge outqueue on stale COOKIE-ECHO handling sctpstreamupdate is only invoked when the association is moved into COOKIEWAIT during association setup/reconfiguration. In this path, the outbound stream scheduler state...

CVE-2026-52924

The CVE-2026-52924 entry describes a Linux kernel SCTP use-after-free vulnerability triggered during Stale COOKIE-ECHO handling. In COOKIE_WAIT transitions, sctp_stream_update() can leave a stale out_curr pointer after rolling back from COOKIE_ECHOED to COOKIE_WAIT, so scheduler paths (FCFS/RR/PR...