Answer in brief
CVE-2026-93144 records a High severity (CVSS 7.8) vulnerability in bpf: Reject writes through untrusted BTF pointers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), 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 7.8. 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), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=282de143ead96a5d53331e946f31c977b4610a74 <19d5566b84ca1af0256d0d0003e1a081580c3ba3 || >=282de143ead96a5d53331e946f31c977b4610a74 <ac65c710cc643cbc52b899627577357867249530 | 19d5566b84ca1af0256d0d0003e1a081580c3ba3, ac65c710cc643cbc52b899627577357867249530 |
| Linux/Linuxgeneric | 6.2 | Not reported |
| Linux/Linuxgeneric | >=282de143ead96a5d53331e946f31c977b4610a74 <644cf4e77c2770d4246f6d12f99bc80d253b0ec6 || >=282de143ead96a5d53331e946f31c977b4610a74 <19d5566b84ca1af0256d0d0003e1a081580c3ba3 || >=282de143ead96a5d53331e946f31c977b4610a74 <ac65c710cc643cbc52b899627577357867249530 | 644cf4e77c2770d4246f6d12f99bc80d253b0ec6, 19d5566b84ca1af0256d0d0003e1a081580c3ba3, ac65c710cc643cbc52b899627577357867249530 |
| Linux/Linuxgeneric | >=282de143ead96a5d53331e946f31c977b4610a74 <56f92fecd80419567288b7972caa90107033836e || >=282de143ead96a5d53331e946f31c977b4610a74 <c4dc883447ae38c4e22a29cc016046fa65d88994 || >=282de143ead96a5d53331e946f31c977b4610a74 <644cf4e77c2770d4246f6d12f99bc80d253b0ec6 || >=282de143ead96a5d53331e946f31c977b4610a74 <19d5566b84ca1af0256d0d0003e1a081580c3ba3 || >=282de143ead96a5d53331e946f31c977b4610a74 <ac65c710cc643cbc52b899627577357867249530 | 56f92fecd80419567288b7972caa90107033836e, c4dc883447ae38c4e22a29cc016046fa65d88994, 644cf4e77c2770d4246f6d12f99bc80d253b0ec6, 19d5566b84ca1af0256d0d0003e1a081580c3ba3, ac65c710cc643cbc52b899627577357867249530 |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 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: bpf: Reject writes through untrusted BTF pointers check_ptr_to_btf_access() lets program-type btf_struct_access callbacks validate writes before the default BTF access path rejects non-read accesses. That bypasses the read-only policy for untrusted BTF pointers created by helpers such as bpf_rdonly_cast(). Reject non-read accesses through PTR_UNTRUSTED BTF pointers at the common entry point, before the callback branch to handle all cases.
Quoted source text, attributed separately from HOL analysis.