Wind River Support Network


LIN1022-4158 : Security Advisory - linux - CVE-2023-2235

Created: May 4, 2023    Updated: May 17, 2023
Resolved Date: May 7, 2023
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux LTS 22
Component/s: Kernel


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.

CREATE(Triage):(User=admin) CVE-2023-2235 (


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