Answer in brief
CVE-2026-45951 records a Unknown severity vulnerability in bpf: Fix a potential use-after-free of BTF object. 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 | >=76145f7255326761dafb76721a785799d8a00d5f <eac65c272f3b49021a843cba5107d63627395e0e || >=76145f7255326761dafb76721a785799d8a00d5f <9ff46ffeecdb1802d6e26183177935b948a12e7f || >=76145f7255326761dafb76721a785799d8a00d5f <ccd2d799ed4467c07f5ee18c2f5c59bcc990822c | eac65c272f3b49021a843cba5107d63627395e0e, 9ff46ffeecdb1802d6e26183177935b948a12e7f, ccd2d799ed4467c07f5ee18c2f5c59bcc990822c |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free of BTF object Refcounting in the check_pseudo_btf_id() function is incorrect: the __check_pseudo_btf_id() function might get called with a zero refcounted btf. Fix this, and patch related code accordingly. v3: rephrase a comment (AI) v2: fix a refcount leak introduced in v1 (AI)
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-45951 records a Unknown severity vulnerability in bpf: Fix a potential use-after-free of BTF object. 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 | >=76145f7255326761dafb76721a785799d8a00d5f <eac65c272f3b49021a843cba5107d63627395e0e || >=76145f7255326761dafb76721a785799d8a00d5f <9ff46ffeecdb1802d6e26183177935b948a12e7f || >=76145f7255326761dafb76721a785799d8a00d5f <ccd2d799ed4467c07f5ee18c2f5c59bcc990822c | eac65c272f3b49021a843cba5107d63627395e0e, 9ff46ffeecdb1802d6e26183177935b948a12e7f, ccd2d799ed4467c07f5ee18c2f5c59bcc990822c |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free of BTF object Refcounting in the check_pseudo_btf_id() function is incorrect: the __check_pseudo_btf_id() function might get called with a zero refcounted btf. Fix this, and patch related code accordingly. v3: rephrase a comment (AI) v2: fix a refcount leak introduced in v1 (AI)
Quoted source text, attributed separately from HOL analysis.