In the Linux kernel, the following vulnerability has been resolved:
can: j1939: make j1939_session_activate() fail if device is no longer registered
syzbot is still reporting
unregister_netdevice: waiting for vcan0 to become free. Usage count = 2
even after commit 93a27b5891b8 ("can: j1939: add missing calls in NETDEV_UNREGISTER notification handler") was added. A debug printk() patch found that j1939_session_activate() can succeed even after j1939_cancel_active_session() from j1939_netdev_notify(NETDEV_UNREGISTER) has completed.
Since j1939_cancel_active_session() is processed with the session list lock held, checking ndev->reg_state in j1939_session_activate() with the session list lock held can reliably close the race window.
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_2023 | — | Upgrade kernel6.12-tools-debuginfoUpgrade bpftool6.12Upgrade kernel-livepatch-6.12.66-88.122Upgrade kernel6.12-libbpf-staticUpgrade kernel6.12-libbpfUpgrade kernel6.12-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.12-toolsUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-tools-develUpgrade kernel6.12-modules-extraUpgrade kernel6.12-headersUpgrade python3-perf6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-libbpf-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-develUpgrade kernel6.12Upgrade perf6.12Upgrade kernel6.12-debuginfo-common-aarch64 | Apr 7, 2026 | Jan 31, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Feb 11, 2026 | Feb 11, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Mar 12, 2026 | Jan 31, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jan 31, 2026 |
| Ubuntu | — | Upgrade linux-image-5.15.0-173-lowlatencyUpgrade linux-image-6.8.0-1054-nvidia-lowlatencyUpgrade linux-image-5.15.0-1098-nvidia-lowlatencyUpgrade linux-image-oem-20.04bUpgrade linux-image-oem-20.04dUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-virtualUpgrade linux-image-6.8.0-1055-ibmUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1095-kvmUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-ibm-6.8Upgrade linux-image-gkeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-intelUpgrade linux-image-5.15.0-1103-aws-fipsUpgrade linux-image-5.15.0-1055-nvidia-tegraUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1059-azure-fipsUpgrade linux-image-6.17.0-1019-oracle-64kUpgrade linux-image-realtimeUpgrade linux-image-gcpUpgrade linux-image-ibmUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-oem-6.17Upgrade linux-image-oem-20.04Upgrade linux-image-azure-fde-6.17Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1109-azure-fipsUpgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-nvidia-5.15Upgrade linux-image-aws-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidiaUpgrade linux-image-aws-fips-6.8Upgrade linux-image-5.15.0-1097-raspiUpgrade linux-image-5.15.0-1109-azureUpgrade linux-image-5.15.0-1110-azureUpgrade linux-image-5.15.0-1098-intel-iotgUpgrade linux-image-5.15.0-1100-oracleUpgrade linux-image-fips-6.8Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oem-24.04aUpgrade linux-image-oem-24.04cUpgrade linux-image-gkeopUpgrade linux-image-oem-24.04dUpgrade linux-image-6.8.0-1059-azureUpgrade linux-image-6.8.0-117-lowlatency-64kUpgrade linux-image-kvmUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-oem-20.04cUpgrade linux-image-5.15.0-1044-nvidia-tegra-igx-rtUpgrade linux-image-oem-24.04Upgrade linux-image-5.15.0-1102-realtimeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.17.0-1018-azure-fdeUpgrade linux-image-gcp-6.8Upgrade linux-image-5.15.0-1098-nvidiaUpgrade linux-image-5.15.0-173-genericUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-173-generic-lpaeUpgrade linux-image-kvm-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-oem-24.04bUpgrade linux-image-6.8.0-1024-nvidia-tegraUpgrade linux-image-6.8.0-1054-gke-64kUpgrade linux-image-azure-cvmUpgrade linux-image-6.8.0-1032-xilinxUpgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1041-gkeopUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1054-nvidia-lowlatency-64kUpgrade linux-image-generic-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-64k-hwe-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-azure-fipsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-fips-5.15Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.8.0-1055-awsUpgrade linux-image-5.15.0-1097-ibmUpgrade linux-image-6.17.0-1018-realtimeUpgrade linux-image-azure-6.17Upgrade linux-image-generic-lpaeUpgrade linux-image-realtime-6.17Upgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-oracleUpgrade linux-image-xilinxUpgrade linux-image-5.15.0-1044-nvidia-tegra-igxUpgrade linux-image-oracle-64kUpgrade linux-image-6.17.0-1021-azureUpgrade linux-image-6.17.0-1031-nvidiaUpgrade linux-image-gke-5.15Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.17.0-1019-oracleUpgrade linux-image-nvidia-64k-6.17Upgrade linux-image-6.8.0-1024-nvidia-tegra-rtUpgrade linux-image-5.15.0-1103-gcpUpgrade linux-image-5.15.0-1094-intel-iot-realtimeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-6.17Upgrade linux-image-gke-6.8Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-hwe-24.04Upgrade linux-image-6.8.0-1056-azureUpgrade linux-image-lowlatency-5.15Upgrade linux-image-6.8.0-1055-aws-fipsUpgrade linux-image-oracle-6.17Upgrade linux-image-5.15.0-173-generic-64kUpgrade linux-image-generic-64kUpgrade linux-image-raspi-5.15Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-awsUpgrade linux-image-6.8.0-117-lowlatencyUpgrade linux-image-6.8.0-117-genericUpgrade linux-image-6.8.0-1054-nvidiaUpgrade linux-image-6.8.0-1056-raspiUpgrade linux-image-6.8.0-1055-aws-64kUpgrade linux-image-5.15.0-173-lowlatency-64kUpgrade linux-image-genericUpgrade linux-image-azure-fdeUpgrade linux-image-fipsUpgrade linux-image-5.15.0-1103-awsUpgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-116-fipsUpgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-6.17Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-raspiUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azureUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gkeop-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.1-1051-realtimeUpgrade linux-image-6.8.0-1058-gcp-64kUpgrade linux-image-6.17.0-1030-oemUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.17.0-1021-gcp-64kUpgrade linux-image-gcp-64kUpgrade linux-image-5.15.0-1055-nvidia-tegra-rtUpgrade linux-image-5.15.0-1103-aws-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-oracle-5.15Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-gke-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-virtual-5.15Upgrade linux-image-raspi-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-117-generic-64kUpgrade linux-image-6.8.0-1054-nvidia-64kUpgrade linux-image-6.17.0-1031-nvidia-64kUpgrade linux-image-aws-fipsUpgrade linux-image-azure-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-6.8.0-1058-gcpUpgrade linux-image-6.8.0-1054-gkeUpgrade linux-image-6.17.0-1021-gcpUpgrade linux-image-5.15.0-173-fipsUpgrade linux-image-5.15.0-1086-gkeopUpgrade linux-image-5.15.0-1067-xilinx-zynqmpUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-6.8.0-2045-raspi-realtimeUpgrade linux-image-6.8.0-1058-gcp-fipsUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-realtime-5.15Upgrade linux-image-aws-6.8Upgrade linux-image-5.15.0-1099-gkeUpgrade linux-image-5.15.0-1103-gcp-fips | Mar 17, 2026 | Jan 31, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jan 31, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub