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CVE-2026-45951

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CVE-2026-45951

Published: May 27, 2026

Modified: May 30, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

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)

VendorProductVersions

Linux

Linux

affected
76145f7255326761dafb76721a785799d8a00d5f - < eac65c272f3b49021a843cba5107d63627395e0e
affected
76145f7255326761dafb76721a785799d8a00d5f - < 9ff46ffeecdb1802d6e26183177935b948a12e7f
affected
76145f7255326761dafb76721a785799d8a00d5f - < ccd2d799ed4467c07f5ee18c2f5c59bcc990822c

Linux

Linux

affected
6.14
unaffected
0 - < 6.14
unaffected
6.18.14 - <= 6.18.*
unaffected
6.19.4 - <= 6.19.*
unaffected
7.0 - <= *

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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