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CVE-2023-2235

Published: 2023-05-01T13:15Z
Last Modified: 2024-11-21T07:58Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
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. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt