AZL-26389

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AZL-26389

Summary: CVE-2023-2235 affecting package kernel for versions less than 5.15.111.1-1

Details: 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.

References: https://nvd.nist.gov/vuln/detail/CVE-2023-2235