CVE-2024-56675 | Security Details | Sonatype Guide
CVE-2024-56675
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.
Published Jul 25, 2026
CVSS Score: 7.8 High
CVE-2024-56675 Security Details
- CVE ID: CVE-2024-56675
- CWE: CWE-416 Learn more about CWE-416
- CVE Description: In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors
Fix it by explicitly waiting for a tasks-trace-RCU grace period after removing the attachment of a bpf_prog to a perf_event.
- Published: Jul 25, 2026
- CVSS Score & Severity: 7.8 High
- CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS Score: 0.024%
- Malware: malware
- KEV Status: Not in KEV Catalog: No known exploits
- Affected Ecosystems: affected
- Source: National Vulnerability Database
References: