CVE-2026-74753: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf: Reject exited events as group leaders perfeventremoveonexec sets remove-on-exec events to the EXIT state and detaches their group relationships. The event's file descriptor can remain open, however, and perfeventopen...

RHEL 8 : kernel-rt (RHSA-2023:4541)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4541 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

ALSA-2023:3708 Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: use-after-free vulnerability in the perfgroupdetach function of the Linux Kernel Performance Events CVE-2023-2235 kernel: netfilte...

CVE-2023-2235: Use After Free

A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perfgroupdetach function did not check the event's siblings' attachstate before calling addeventtogroups, but removeonexec made it possible to call listdelevent...