Description
In the Linux kernel, the following vulnerability has been resolved:
cppc_cpufreq: Fix possible null pointer dereference
cppc_cpufreq_get_rate() and hisi_cppc_cpufreq_get_rate() can be called from
different places with various parameters. So cpufreq_cpu_get() can return
null as 'policy' in some circumstances.
Fix this bug by adding null return check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.11 | 5.15.161 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.8.12-1 | — |
| Debian 13 | linux | 6.8.12-1 | — |
| Debian 12 | linux | 6.1.94-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1052.54 | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-40.40 | USN-6949-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1013.14 | USN-6949-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1012.14 | USN-6952-2 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1012.13 | USN-6949-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1008.11 | USN-6949-1 |
| Ubuntu 24.04 LTS | linux-ibm +2 | 6.8.0-1010.10 | USN-6955-1, USN-6952-1, USN-6949-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1011.11 | USN-6949-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1011.11.1 | USN-6952-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1009.10 | USN-6949-2 |
| Ubuntu 24.04 LTS | linux-riscv +1 | 6.8.0-40.40.1 | USN-6949-2 |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-121.131 | USN-7007-3, USN-7007-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1069.75 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1013.14~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1072.81 | USN-7009-1 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1012.14~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1072.81.1 | USN-7009-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1068.76 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1012.13~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1066.72 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1052.59 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-40.40~22.04.3 | — |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1062.65 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 +1 | 6.8.0-1010.10~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1064.70 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1066.71 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1064.65 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1011.11~22.04.1 | USN-6949-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1028.28 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1016.16 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1067.73 | USN-7007-1 |
| Ubuntu 22.04 LTS | linux-riscv +31 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv-6.8 +1 | 6.8.0-40.40.1~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1035.39 | USN-7019-1 |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1069.75~20.04.1 | USN-7007-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1072.81~20.04.1 | USN-7009-1 |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1072.81~20.04.1.1 | USN-7009-2 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1068.76~20.04.1 | USN-7007-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1052.59~20.04.1 | USN-7007-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-121.131~20.04.1 | USN-7007-3, USN-7007-1 |
| Ubuntu 20.04 LTS | linux-ibm-5.15 | 5.15.0-1062.65~20.04.1 | USN-7007-2 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1064.70~20.04.1 | USN-7007-1 |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1030.30~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1067.73~20.04.1 | USN-7007-2 |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1065.69~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2008.8 | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1006.6 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1063.65 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1070.78 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1006.6~22.04.1 | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-78.78+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1069.75+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1072.81+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-121.131+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1068.76+fips1 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.3.0-427.37.1.el9_4 | RHSA-2024:6997 |
| RHEL 9 | rv +64 | 5.14.0-427.37.1.el9_4 | RHSA-2024:6997 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.16.1.rt7.357.el8_10 | RHSA-2024:5102 |
| RHEL 8 | perf +26 | 4.18.0-553.16.1.el8_10 | RHSA-2024:5101 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | bpftool | 7.0.0-284.84.1.el9_2 | RHSA-2024:6744 |
| RHEL 9.2 EUS | kernel-rt +14 | 5.14.0-284.84.1.rt14.369.el9_2 | RHSA-2024:6745 |
| RHEL 9.2 EUS | perf +47 | 5.14.0-284.84.1.el9_2 | RHSA-2024:6744 |
| RHEL 8.8 EUS | perf +26 | 4.18.0-477.74.1.el8_8 | RHSA-2024:6993 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.3.0-427.37.1.el9_4 | ALSA-2024:6997 |
| AlmaLinux 9 | rv +60 | 5.14.0-427.37.1.el9_4 | ALSA-2024:6997 |
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.16.1.rt7.357.el8_10 | ALSA-2024:5102 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.16.1.el8_10 | ALSA-2024:5101 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.16.1.el8_10 | RXSA-2024:5101, RLSA-2024:5101 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.16.1.rt7.357.el8_10 | RLSA-2024:5102 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb | 6.4.0-150600.23.14.1 | SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:2896-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.14.2.150600.12.4.3 | SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-docs +5 | 6.4.0-150600.23.14.2 | SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:2896-1 |
| SLES 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.60.1 | SUSE-SU-2024:2372-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20008-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-9.1 | SUSE-SU-2025:20028-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-18.1 | SUSE-SU-2025:20008-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.61.1 | SUSE-SU-2024:2394-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.14.2 | SUSE-SU-2024:2571-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | 1-150600.1.5.1 | SUSE-SU-2024:2973-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_2 | 1-150600.13.3.2 | SUSE-SU-2024:2571-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_17 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2939-1, SUSE-SU-2024:2394-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.61.1 | SUSE-SU-2024:2394-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +1 | 6.4.0-150600.23.14.1 | SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.14.2.150600.12.4.3 | SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-docs +8 | 6.4.0-150600.23.14.2 | SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| openSUSE Leap 15.6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.5 | dtb-aarch64 +9 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.60.1 | SUSE-SU-2024:2372-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.61.1 | SUSE-SU-2024:2394-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.94-99.176 | 1.0-0.amzn2023 | ALAS2023-2024-683 |
| Amazon Linux 2023 | perf +14 | 6.1.94-99.176.amzn2023 | ALAS2023-2024-683 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.3.0-427.37.1.el9_4 | ELSA-2024-6997 |
| Oracle Linux 9 | rv +27 | 5.14.0-427.37.1.el9_4 | ELSA-2024-6997 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.16.1.el8_10 | ELSA-2024-5101 |
Advisories 38
- ALSA-2024:6997 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:5102 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:5101 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-7007-1 linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-nvidia, linux-oracle, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7009-1 linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7007-3 linux-lowlatency, linux-lowlatency-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7019-1 linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6955-1 linux-oem-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7007-2 linux-ibm-5.15, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6952-2 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6952-1 linux-nvidia-lowlatency, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6949-2 linux-lowlatency, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6949-1 linux, linux-aws, linux-gcp, linux-gke, linux-ibm, linux-nvidia, linux-nvidia-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- RHSA-2024:6993 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:5102 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:5101 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2024-1418 Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Sep 8, 2026
- RHSA-2024:6997 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 20, 2026
- RHSA-2024:6744 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 20, 2026
- RHSA-2024:6745 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Aug 20, 2026
- USN-7009-2 linux-azure-fde-5.15 vulnerabilities Ubuntu Security Notices (USN) · Aug 6, 2026
- SUSE-SU-2025:20008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20028-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2024-1913 Red Hat OpenShift Container Platform: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 3, 2026
- RXSA-2024:5101 Important: kernel security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:5102 Important: kernel-rt security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:5101 Important: kernel security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:2973-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2394-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2939-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2896-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2372-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1293 IBM DataPower Gateway: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 3, 2025
- ALAS2023-2024-683 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 5, 2025
- SUSE-SU-2024:2571-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2025-0612 IBM Security Guardium: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 20, 2025
- ELSA-2024-6997 Important: kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 24, 2024
- ELSA-2024-5101 Important: kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 8, 2024
References
- https://git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618
- https://git.kernel.org/stable/c/769c4f355b7962895205b86ad35617873feef9a5
- https://git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713c
- https://git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedf
- https://git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4
- https://git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfe