Answer in brief
CVE-2026-68320 records a Unknown severity vulnerability in sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1f485649f52929d9937b346a920a522a7363e202 <5a365f1e423444c5da7eb689a8661633dad43e48 || >=1f485649f52929d9937b346a920a522a7363e202 <886e28e14ab655012779016d251fef53d103aa12 || >=1f485649f52929d9937b346a920a522a7363e202 <11092d79eb2b7c0068382f72fc2416d1786bb2e0 || >=1f485649f52929d9937b346a920a522a7363e202 <b6ea3dda09eb4d5caf7bbc00f857688cf9e98255 || >=1f485649f52929d9937b346a920a522a7363e202 <ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 | 5a365f1e423444c5da7eb689a8661633dad43e48, 886e28e14ab655012779016d251fef53d103aa12, 11092d79eb2b7c0068382f72fc2416d1786bb2e0, b6ea3dda09eb4d5caf7bbc00f857688cf9e98255, ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 |
| Linux/Linuxgeneric | 2.6.24 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68320 records a Unknown severity vulnerability in sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1f485649f52929d9937b346a920a522a7363e202 <5a365f1e423444c5da7eb689a8661633dad43e48 || >=1f485649f52929d9937b346a920a522a7363e202 <886e28e14ab655012779016d251fef53d103aa12 || >=1f485649f52929d9937b346a920a522a7363e202 <11092d79eb2b7c0068382f72fc2416d1786bb2e0 || >=1f485649f52929d9937b346a920a522a7363e202 <b6ea3dda09eb4d5caf7bbc00f857688cf9e98255 || >=1f485649f52929d9937b346a920a522a7363e202 <ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 | 5a365f1e423444c5da7eb689a8661633dad43e48, 886e28e14ab655012779016d251fef53d103aa12, 11092d79eb2b7c0068382f72fc2416d1786bb2e0, b6ea3dda09eb4d5caf7bbc00f857688cf9e98255, ff04b26794a16a8a879eb4fd2c02c2d6b03850e9 |
| Linux/Linuxgeneric | 2.6.24 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.