CVE-2026-68320
CVE CVE-2026-68320EUVD EUVD-2026-55421Published 2026-08-10T12:02:55.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid sctp_auth_ep_add_chunkid() uses SCTP_NUM_CHUNK_TYPES (20) as the capacity limit for ep->auth_chunk_list, allowing it to hold up to 20 chunk entries (param_hdr.length up to 24). However, the copy destination asoc->c.auth_chunks in struct sctp_cookie is only SCTP_AUTH_MAX_CHUNKS (16) entries (20 bytes). When more than 16 chunks are added, sctp_association_init() memcpy overflows the destination by up to 4 bytes. Fix by using SCTP_AUTH_MAX_CHUNKS as the capacity limit, matching the destination capacity.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.1.6; patch: 7.2-rc5; patch: 6.6.148; 1f485649f52929d9937b346a920a522a7363e202 <886e28e14ab655012779016d251fef53d103aa12; patch: 0; patch: 6.12.101; 2.6.24; 1f485649f52929d9937b346a920a522a7363e202 <ff04b26794a16a8a879eb4fd2c02c2d6b03850e9; 1f485649f52929d9937b346a920a522a7363e202 <11092d79eb2b7c0068382f72fc2416d1786bb2e0; 1f485649f52929d9937b346a920a522a7363e202 <5a365f1e423444c5da7eb689a8661633dad43e48; patch: 6.18.42; 1f485649f52929d9937b346a920a522a7363e202 <b6ea3dda09eb4d5caf7bbc00f857688cf9e98255
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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