High [CVE-2026-68315] validate stream count in sctp_process_strreset_inreq
This high-severity Red Hat Linux advisory covers CVE-2026-68315 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.
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Summary
A flaw was found in the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation. When processing a Stream Reset Incoming Request (RESET_IN_REQUEST) from a peer, the kernel does not properly validate the stream count.
This can lead to an integer overflow when calculating the size for the corresponding outgoing request, resulting in an undersized memory allocation. A remote attacker could exploit this vulnerability on interfaces supporting large Maximum Transmission Units (MTU) to trigger a kernel bug, causing a denial of service.
Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-787.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: kernel-rt.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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