CVE-2023-39191: Kernel: ebpf: insufficient stack type checks in dynptr

Description

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

0:5.14.0-362.8.1.el9_3 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

0:5.14.0-362.8.1.el9_3 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support

Default version status: affected

0:5.14.0-284.48.1.el9_2 to < *unaffected