In the Linux kernel, the following vulnerability has been resolved:
can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode
Andrei Lalaev reported a NULL pointer deref when a CAN device is restarted from Bus Off and the driver does not implement the struct can_priv::do_set_mode callback.
There are 2 code path that call struct can_priv::do_set_mode: - directly by a manual restart from the user space, via can_changelink() - delayed automatic restart after bus off (deactivated by default)
To prevent the NULL pointer deference, refuse a manual restart or configure the automatic restart delay in can_changelink() and report the error via extack to user space.
As an additional safety measure let can_restart() return an error if can_priv::do_set_mode is not set instead of dereferencing it unchecked.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.244-240.965Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.15.193-133.214Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade bpftoolUpgrade python-perfUpgrade kernel-tools-develUpgrade kernel-livepatch-4.14.355-280.695Upgrade kernel-develUpgrade perf-debuginfoUpgrade perfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12-tools-debuginfoUpgrade kernel-modules-extra-commonUpgrade kernel-livepatch-6.1.148-173.267Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade bpftool6.12Upgrade kernel-livepatch-6.12.46-66.121Upgrade kernel6.12-libbpf-staticUpgrade kernel6.12-libbpf-develUpgrade python3-perf6.12-debuginfoUpgrade bpftool6.12-debuginfoUpgrade bpftool-debuginfoUpgrade kernel6.12-libbpfUpgrade kernel-libbpf-debuginfoUpgrade perf6.12Upgrade perf-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel6.12-modules-extra-commonUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel6.12-develUpgrade kernel-libbpfUpgrade kernelUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-debuginfo-common-aarch64Upgrade kernel6.12-headersUpgrade bpftoolUpgrade kernel6.12-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel6.12Upgrade kernel-debuginfoUpgrade python3-perf6.12Upgrade perfUpgrade kernel-headersUpgrade kernel-libbpf-develUpgrade kernel6.12-toolsUpgrade kernel-develUpgrade python3-perf-debuginfoUpgrade perf6.12-debuginfo | Sep 16, 2025 | Aug 22, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Sep 8, 2025 | Sep 8, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Oct 16, 2025 | Aug 22, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Aug 22, 2025 |
| Suse | — | Upgrade kernel-docs-htmlUpgrade kernel-source-azureUpgrade kernel-64kbUpgrade kernel-rt_debug-develUpgrade kernel-default-livepatchUpgrade reiserfs-kmp-64kbUpgrade dtb-freescaleUpgrade kernel-rt-optionalUpgrade kernel-debug-develUpgrade kernel-kvmsmall-vdsoUpgrade dtb-appleUpgrade kernel-default-manUpgrade kernel-source-vanillaUpgrade dlm-kmp-64kbUpgrade kernel-azureUpgrade kernel-kvmsmall-develUpgrade dtb-allwinnerUpgrade dtb-amazonUpgrade kselftests-kmp-azureUpgrade kernel-rt_debugUpgrade gfs2-kmp-rtUpgrade kernel-devel-azureUpgrade dtb-amdUpgrade dtb-caviumUpgrade kernel-source-rtUpgrade kernel-default-vdsoUpgrade kernel-rt-livepatch-develUpgrade kernel-azure-extraUpgrade cluster-md-kmp-azureUpgrade kernel-symsUpgrade kernel-64kb-optionalUpgrade ocfs2-kmp-azureUpgrade dtb-hisiliconUpgrade dtb-lgUpgrade dtb-broadcomUpgrade kernel-debugUpgrade dtb-socionextUpgrade kernel-default-develUpgrade ocfs2-kmp-64kbUpgrade gfs2-kmp-azureUpgrade kernel-azure-vdsoUpgrade kernel-rt-vdsoUpgrade kernel-syms-azureUpgrade dtb-renesasUpgrade gfs2-kmp-64kbUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade kernel-kvmsmallUpgrade dtb-marvellUpgrade kernel-sourceUpgrade reiserfs-kmp-defaultUpgrade kernel-zfcpdumpUpgrade ocfs2-kmp-rtUpgrade dtb-alteraUpgrade dtb-exynosUpgrade kernel-azure-optionalUpgrade kernel-defaultUpgrade kernel-default-extraUpgrade kernel-64kb-extraUpgrade dtb-qcomUpgrade dtb-mediatekUpgrade kernel-azure-develUpgrade kernel-rt-develUpgrade dtb-sprdUpgrade reiserfs-kmp-azureUpgrade kselftests-kmp-defaultUpgrade kernel-develUpgrade dtb-xilinxUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kb-develUpgrade kernel-obs-buildUpgrade kernel-devel-rtUpgrade kernel-default-optionalUpgrade dlm-kmp-defaultUpgrade kernel-obs-qaUpgrade dlm-kmp-azureUpgrade kernel-rtUpgrade kernel-default-baseUpgrade kernel-debug-vdsoUpgrade gfs2-kmp-defaultUpgrade dtb-rockchipUpgrade dtb-nvidiaUpgrade dtb-apmUpgrade cluster-md-kmp-64kbUpgrade dtb-armUpgrade cluster-md-kmp-defaultUpgrade kernel-rt-livepatchUpgrade kernel-rt-extraUpgrade kernel-default-livepatch-develUpgrade kernel-docsUpgrade reiserfs-kmp-rtUpgrade kernel-syms-rtUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-rtUpgrade kernel-macrosUpgrade kselftests-kmp-rtUpgrade kernel-default-base-rebuildUpgrade dtb-amlogic | Dec 5, 2025 | Sep 18, 2025 |
| Ubuntu | — | Upgrade linux-image-generic-6.8Upgrade linux-image-gke-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-azure-6.14Upgrade linux-image-oem-22.04cUpgrade linux-image-gcp-fipsUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-raspi-6.14Upgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-realtime-6.8.1Upgrade linux-image-generic-6.14Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-gke-64k-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.14.0-1016-oemUpgrade linux-image-ibm-6.8Upgrade linux-image-gkeop-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-xilinx-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-100-genericUpgrade linux-image-oem-22.04aUpgrade linux-image-oem-24.04aUpgrade linux-image-intel-iotgUpgrade linux-image-aws-64k-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-6.14.0-1017-azureUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-genericUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-nvidiaUpgrade linux-image-gkeopUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-azureUpgrade linux-image-raspiUpgrade linux-image-raspi-6.8Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-virtual-6.14Upgrade linux-image-ibmUpgrade linux-image-gcp-6.14Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-6.14.0-36-generic-64kUpgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-fipsUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-lowlatency-6.8Upgrade linux-image-oem-6.14Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-xilinxUpgrade linux-image-virtualUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcpUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-aws-6.14Upgrade linux-image-awsUpgrade linux-image-azure-fips-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-generic-64k-6.14Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-aws-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-gkeUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-realtime-6.14Upgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-aws-64k-6.14Upgrade linux-image-oem-22.04bUpgrade linux-image-oracleUpgrade linux-image-oracle-6.14Upgrade linux-image-6.14.0-1017-awsUpgrade linux-image-realtimeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-100-fips | Nov 25, 2025 | Nov 21, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 7, 2025 | Aug 22, 2025 |
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