VMware Photon OS: CVE-2024-56675

VMware Photon OS: CVE-2024-56675

Severity

7

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

12/27/2024

Created

01/30/2025

Added

01/29/2025

Modified

02/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors Uprobes always use bpf_prog_run_array_uprobe() under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF programs are freed via normal RCU (see __bpf_prog_put_noref()). This leads to UAF of the bpf_prog because a normal RCU grace period does not imply a tasks-trace-RCU grace period. Fix it by explicitly waiting for a tasks-trace-RCU grace period after removing the attachment of a bpf_prog to a perf_event.

Solution(s)

• vmware-photon_os_update_tdnf

References

• https://attackerkb.com/topics/cve-2024-56675
• CVE - 2024-56675