Answer in brief
CVE-2026-93190 records a High severity (CVSS 8.4) vulnerability in platform/chrome: cros_ec_typec: Reject out-of-bounds PD cap count. 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.
CVSS is 8.4. 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 | >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <7617b210a2200b76d8f171819390468c7d189c80 || >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <4e37371cb4e3b8ff564d7760029236a7bd614562 || >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <2a7a4e45a3aa4f4ef7013eb64649f6184b76a293 || >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <e4728288473a5024a8bdba7d43f346719606fea0 || >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <54d6b0ee9b8ba434089b11843effc111dc2e6ead || >=348a2e8c93d3ca622cf1b293cd2f597c9db74d9d <a0a8cd9fc9c48b95095bcec4b146f7a99486f58e | 7617b210a2200b76d8f171819390468c7d189c80, 4e37371cb4e3b8ff564d7760029236a7bd614562, 2a7a4e45a3aa4f4ef7013eb64649f6184b76a293, e4728288473a5024a8bdba7d43f346719606fea0, 54d6b0ee9b8ba434089b11843effc111dc2e6ead, a0a8cd9fc9c48b95095bcec4b146f7a99486f58e |
| Linux/Linuxgeneric | 6.1 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 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: platform/chrome: cros_ec_typec: Reject out-of-bounds PD cap count cros_typec_register_partner_pdos() copies the partner PDOs from the EC TYPEC_STATUS response into the fixed caps_desc.pdo[PDO_MAX_OBJECTS] array. memcpy(caps_desc.pdo, resp->source_cap_pdos, sizeof(u32) * resp->source_cap_count); ... memcpy(caps_desc.pdo, resp->sink_cap_pdos, sizeof(u32) * resp->sink_cap_count); PDO_MAX_OBJECTS is 7. source_cap_count and sink_cap_count are u8 fields from the EC. The only check is that they are not both zero. If either is larger than 7, the memcpy writes past the end of the array on the stack. A count of 255 overflows it by about 1 KB. The EC source arrays are only seven entries wide. A larger count reads past them too. The ChromeOS EC firmware caps these counts today, so a compliant setup does not hit this. The kernel should still validate these values rather than trust them. Validate the counts in cros_typec_register_partner_pdos() next to the memcpy. Skip the PDO registration if either count is above PDO_MAX_OBJECTS. The rest of cros_typec_handle_status() still runs so events are handled and cleared.
Quoted source text, attributed separately from HOL analysis.