Answer in brief
CVE-2026-90327 records a Unknown severity vulnerability in phonet: pep: do not write beyond optlen in getsockopt. 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 | >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <6054fed6bad08b6d03973e8ffca7f0c9394d1c30 || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <eac733a0b6fe0a52d91f9f623425735ed50ac6c2 || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <95e0ed2439dd1792eb454c68ae8d10f30ffe3bff || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <056eea1a2068ad2fb7c3093c5f1095268f87d0c7 || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <1bf499e438da80455e258049bce60ffb3a53f3fa || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <c4487e4d5309de587479ecc2f5173b49586f46f4 || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <f97022fefe6eb06ee18549d603420440f2959802 || >=02a47617cdce440f60c71a51f3a93f9f5fcc5a7a <77e5eb0e192aec6710c03ca8144582fd2af36ca4 | 6054fed6bad08b6d03973e8ffca7f0c9394d1c30, eac733a0b6fe0a52d91f9f623425735ed50ac6c2, 95e0ed2439dd1792eb454c68ae8d10f30ffe3bff, 056eea1a2068ad2fb7c3093c5f1095268f87d0c7, 1bf499e438da80455e258049bce60ffb3a53f3fa, c4487e4d5309de587479ecc2f5173b49586f46f4, f97022fefe6eb06ee18549d603420440f2959802, 77e5eb0e192aec6710c03ca8144582fd2af36ca4 |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: phonet: pep: do not write beyond optlen in getsockopt pep_getsockopt() clamps the reported length to the caller's buffer with min_t(), but then stores the value with put_user(val, (int __user *) optval), which always writes sizeof(int) bytes. A getsockopt() call with an optlen smaller than sizeof(int) thus reports the clamped length yet writes a full int, one to three bytes past the user buffer. Write the value with copy_to_user() bounded by len, so at most optlen bytes are copied, matching the length reported back to userspace.
Quoted source text, attributed separately from HOL analysis.