CVE-2026-23271 describes a race condition within the Linux kernel's performance monitoring (perf) subsystem. This flaw allows `__perf_event_overflow()` to potentially access freed resources, such as BPF programs, due to a timing issue with `perf_remove_from_context()`. Although a CVSS score is unavailable, its low EPSS and FAUCET risk scores suggest a limited practical impact or exploitability, potentially leading to system instability or denial of service. There is no evidence of active exploitation, public exploit code, or significant community attention for this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.6.31, < 6.1.167CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.6.130CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.7, < 6.12.77CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.13, < 6.18.17CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.19, < 6.19.7CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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