CVE-2026-45951
bpf: Fix a potential use-after-free of BTF object
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
| Last Updated | May 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
76145f7255326761dafb76721a785799d8a00d5f < eac65c272f3b49021a843cba5107d63627395e0e 76145f7255326761dafb76721a785799d8a00d5f < 9ff46ffeecdb1802d6e26183177935b948a12e7f 76145f7255326761dafb76721a785799d8a00d5f < ccd2d799ed4467c07f5ee18c2f5c59bcc990822c
Linux / Linux
6.14