vulnerability
Rocky Linux: CVE-2023-2235: kernel-rt (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | May 1, 2023 | Mar 5, 2024 | Aug 13, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
May 1, 2023
Added
Mar 5, 2024
Modified
Aug 13, 2025
Description
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.
Solutions
rocky-upgrade-bpftoolrocky-upgrade-bpftool-debuginforocky-upgrade-kernelrocky-upgrade-kernel-corerocky-upgrade-kernel-cross-headersrocky-upgrade-kernel-debugrocky-upgrade-kernel-debug-corerocky-upgrade-kernel-debug-debuginforocky-upgrade-kernel-debug-develrocky-upgrade-kernel-debug-modulesrocky-upgrade-kernel-debug-modules-extrarocky-upgrade-kernel-debuginforocky-upgrade-kernel-debuginfo-common-x86_64rocky-upgrade-kernel-develrocky-upgrade-kernel-headersrocky-upgrade-kernel-modulesrocky-upgrade-kernel-modules-extrarocky-upgrade-kernel-rtrocky-upgrade-kernel-rt-corerocky-upgrade-kernel-rt-debugrocky-upgrade-kernel-rt-debug-corerocky-upgrade-kernel-rt-debug-debuginforocky-upgrade-kernel-rt-debug-develrocky-upgrade-kernel-rt-debug-kvmrocky-upgrade-kernel-rt-debug-modulesrocky-upgrade-kernel-rt-debug-modules-extrarocky-upgrade-kernel-rt-debuginforocky-upgrade-kernel-rt-debuginfo-common-x86_64rocky-upgrade-kernel-rt-develrocky-upgrade-kernel-rt-kvmrocky-upgrade-kernel-rt-modulesrocky-upgrade-kernel-rt-modules-extrarocky-upgrade-kernel-toolsrocky-upgrade-kernel-tools-debuginforocky-upgrade-kernel-tools-libsrocky-upgrade-kernel-tools-libs-develrocky-upgrade-perfrocky-upgrade-perf-debuginforocky-upgrade-python3-perfrocky-upgrade-python3-perf-debuginfo
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