CVE-2023-2235 (GCVE-0-2023-2235)

Vulnerability from cvelistv5 – Published: 2023-05-01 12:51 – Updated: 2026-08-07 18:47
VLAI
Title
Use-after-free in Linux kernel's Performance Events subsystem
Summary
A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability. We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-05 18:38 UTC
CWE
Assigner
Google CNA under the Google root
CNA scorecard B 78/100 over 38 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Kernel Affected: 5.13 , < 6.3 (custom)
guessed Create a notification for this product.
Date Public
2023-03-15 20:49
Credits
Budimir Markovic
Show details on NVD website
To clipboard 

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.