Vulnerability · Published Dec 27, 2024 · Assigned by Linux

CVE-2024-56675bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors

High 7.8

In plain English

A high-severity use-after-free in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 86.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10kernel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-devel-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-64k-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-64k-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-abi-stablelists6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-abi-stablelists5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-cross-headers6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-cross-headers5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-devel-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-debug-uki-virt6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-debug-uki-virt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-devel-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-doc6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-doc5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-headers6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-headers5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-modules-extra-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:10kernel-rt6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-rt-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-rt-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-tools6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-tools5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-tools-libs6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-tools-libs5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-tools-libs-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-tools-libs-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-uki-virt6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-uki-virt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-uki-virt-addons6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-uki-virt-addons5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-devel6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-modules6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10libperf6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9libperf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10perf6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9perf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10python3-perf6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9python3-perf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10rtla6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9rtla5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:10rv6.12.0-124.8.1.el10_1ALSA-2025:20095
AlmaLinux:9rv5.14.0-611.5.1.el9_7ALSA-2025:20518
Debian:12linux6.1.123-1DEBIAN-CVE-2024-56675
Debian:13linux6.12.6-1DEBIAN-CVE-2024-56675
Debian:14linux6.12.6-1DEBIAN-CVE-2024-56675
Rocky Linux:10kernel0:6.12.0-124.8.1.el10_1RLSA-2025:20095
Rocky Linux:9kernel0:5.14.0-611.5.1.el9_7RLSA-2025:20518
Ubuntu:24.04:LTSlinux6.8.0-60.63USN-7513-1
Ubuntu:24.04:LTSlinux6.8.0-60.63UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-aws6.8.0-1029.31USN-7513-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1029.31UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1029.31~22.04.1USN-7513-1
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1029.31~22.04.1UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-azure6.8.0-1029.34USN-7513-3
Ubuntu:24.04:LTSlinux-azure6.8.0-1029.34UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1012.12~24.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1029.34~22.04.1USN-7513-3
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1029.34~22.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1016.17USN-7522-1
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1016.17UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-gcp6.8.0-1030.32UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-gcp6.8.0-1030.32USN-7515-2
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1011.11~24.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1030.32~22.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1030.32~22.04.1USN-7515-2
Ubuntu:24.04:LTSlinux-gke6.8.0-1025.29UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-gke6.8.0-1025.29USN-7515-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1012.14UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1012.14USN-7515-2
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-21.21~24.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-60.63~22.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-60.63~22.04.1USN-7513-4
Ubuntu:24.04:LTSlinux-ibm6.8.0-1026.26UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-ibm6.8.0-1026.26USN-7513-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1026.26~22.04.1UBUNTU-CVE-2024-56675
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-60.63.1UBUNTU-CVE-2024-56675
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-60.63.1USN-7513-1

Affected products (as reported)

VendorProductVersions
Linux Linux 8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 – before 9245459a992d22fe0e92e988f49db1fec82c184a8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 – before f9f85df30118f3f4112761e6682fc60ebcce23e58c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 – before 9b53d2c2a38a1effc341d99be3f99fa7ef17047d8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9 – before ef1b808e3b7c98612feceedf985c2fbbeb28f956
Linux Linux 6.0

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References