Description

In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing When a listening SCTP server processes a COOKIE_ECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked by sctp_process_init() using sctp_walk_params(). However, the chunk header length of this cached INIT chunk was not validated against the remaining buffer in the COOKIE_ECHO payload. If the length field is inflated, the parameter walk can run beyond the actual received data, leading to out-of-bounds reads and potential memory corruption during later parameter handling (e.g. STATE_COOKIE processing and kmemdup() copies). Add a bounds check in sctp_unpack_cookie() to ensure the cached INIT chunk length does not exceed the available data in the COOKIE_ECHO buffer before it is used.

Affected products

VendorProductVersions
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to <cc272185c9a9a4b7febc2de52eeaa3d00f19091e; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to <edccbf3d63b0a3362bc916ea72edacc1e1ca456a; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to <0861615c28de668669d748ef4eb913ea9262d13b
LinuxLinux2.6.12; 0 to <2.6.12; 6.18.36 to <=6.18.*; 7.0.13 to <=7.0.*; 7.1 to <=*

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 25 Jun 2026 10:14 UTC.