CVE-2024-56675

216.73.217.176

· Published 27/12/2024 15:15 · Modified 06/01/2025 15:03

Labels: CVE-2024-56675 2024-12-27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 CVE-2024-56675 CWE-416

Essential information

Published: 27/12/2024 15:15
Modified: 06/01/2025 15:03
Author: —
Creator: —
CVSS: 7.8 HIGH (v3.1)
CISA KEV: No
CWE: —
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS metrics

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.

NVD status

Status: Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD: View on NVD

Affected products (CPE)

Product	CPE
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel:6.13:rc1::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel:6.13:rc2::::::`