Answer in brief
CVE-2026-64314 records a Unknown severity vulnerability in crypto: chacha20poly1305 - validate poly1305 template argument. 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 | >=a298765e28adaea199f722142c10dae7e24dedf8 <0016d3c21c6ab60a20be7f565cefb5999f3adeb6 || >=a298765e28adaea199f722142c10dae7e24dedf8 <e74df53b36cdc6b6b9e5488ec883d1d55624737f || >=a298765e28adaea199f722142c10dae7e24dedf8 <265b861bece38318b8e0fc8fac0643d4ef906d31 | 0016d3c21c6ab60a20be7f565cefb5999f3adeb6, e74df53b36cdc6b6b9e5488ec883d1d55624737f, 265b861bece38318b8e0fc8fac0643d4ef906d31 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
In the Linux kernel, the following vulnerability has been resolved: crypto: chacha20poly1305 - validate poly1305 template argument chachapoly_create() still accepts the compatibility poly1305 parameter in the template name, but it assumes the second template argument is always present and immediately passes it to strcmp(). When the argument is missing, crypto_attr_alg_name() returns an error pointer. Check for that before comparing the name so malformed template instantiations fail with an error instead of dereferencing the error pointer in strcmp(). This matches the surrounding Crypto API template pattern where crypto_attr_alg_name() results are validated before string-specific use.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-64314 records a Unknown severity vulnerability in crypto: chacha20poly1305 - validate poly1305 template argument. 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 | >=a298765e28adaea199f722142c10dae7e24dedf8 <0016d3c21c6ab60a20be7f565cefb5999f3adeb6 || >=a298765e28adaea199f722142c10dae7e24dedf8 <e74df53b36cdc6b6b9e5488ec883d1d55624737f || >=a298765e28adaea199f722142c10dae7e24dedf8 <265b861bece38318b8e0fc8fac0643d4ef906d31 | 0016d3c21c6ab60a20be7f565cefb5999f3adeb6, e74df53b36cdc6b6b9e5488ec883d1d55624737f, 265b861bece38318b8e0fc8fac0643d4ef906d31 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
In the Linux kernel, the following vulnerability has been resolved: crypto: chacha20poly1305 - validate poly1305 template argument chachapoly_create() still accepts the compatibility poly1305 parameter in the template name, but it assumes the second template argument is always present and immediately passes it to strcmp(). When the argument is missing, crypto_attr_alg_name() returns an error pointer. Check for that before comparing the name so malformed template instantiations fail with an error instead of dereferencing the error pointer in strcmp(). This matches the surrounding Crypto API template pattern where crypto_attr_alg_name() results are validated before string-specific use.
Quoted source text, attributed separately from HOL analysis.