Answer in brief
CVE-2026-53147 records a High severity (CVSS 8.1) vulnerability in thunderbolt: Validate XDomain request packet size before type cast. 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.
Answer in brief
CVE-2026-53147 records a High severity (CVSS 8.1) vulnerability in thunderbolt: Validate XDomain request packet size before type cast. 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 8.1. 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 | >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <a770e62923090d7572f1f5a8507ae551d354a057 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <0dd61ba03d05187726ecdf9c0e2175a81b9b24f6 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <79235c8add5da4bf27a12f5a5dbb579f300c059e || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <46da5c3ea011e884028a91cf913db093920a915b || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <07cd2787cdf8942d24a1a3ef81aa89b526fb6381 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <a504b9f2797b739e0304d537e8aa4ce883ecce39 | a770e62923090d7572f1f5a8507ae551d354a057, 0dd61ba03d05187726ecdf9c0e2175a81b9b24f6, 79235c8add5da4bf27a12f5a5dbb579f300c059e, 46da5c3ea011e884028a91cf913db093920a915b, 07cd2787cdf8942d24a1a3ef81aa89b526fb6381, a504b9f2797b739e0304d537e8aa4ce883ecce39 |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.
Quoted source text, attributed separately from HOL analysis.
CVSS is 8.1. 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 | >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <a770e62923090d7572f1f5a8507ae551d354a057 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <0dd61ba03d05187726ecdf9c0e2175a81b9b24f6 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <79235c8add5da4bf27a12f5a5dbb579f300c059e || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <46da5c3ea011e884028a91cf913db093920a915b || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <07cd2787cdf8942d24a1a3ef81aa89b526fb6381 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <a504b9f2797b739e0304d537e8aa4ce883ecce39 | a770e62923090d7572f1f5a8507ae551d354a057, 0dd61ba03d05187726ecdf9c0e2175a81b9b24f6, 79235c8add5da4bf27a12f5a5dbb579f300c059e, 46da5c3ea011e884028a91cf913db093920a915b, 07cd2787cdf8942d24a1a3ef81aa89b526fb6381, a504b9f2797b739e0304d537e8aa4ce883ecce39 |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.
Quoted source text, attributed separately from HOL analysis.