In the Linux kernel, the following vulnerability has been resolved:
comedi: me4000: Fix potential overrun of firmware buffer
`me4000_xilinx_download()` loads the firmware that was requested by `request_firmware()`. It is possible for it to overrun the source buffer because it blindly trusts the file format. It reads a data stream length from the first 4 bytes into variable `file_length` and reads the data stream contents of length `file_length` from offset 16 onwards.
Add a test to ensure that the supplied firmware is long enough to contain the header and the data stream. On failure, log an error and return `-EINVAL`.
Note: The firmware loading was totally broken before commit ac584af59945 ("staging: comedi: me4000: fix firmware downloading"), but that is the most sensible target for this fix.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.1Upgrade linux | May 3, 2026 | May 3, 2026 |
| Ubuntu | — | Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1059-gke-64kUpgrade linux-image-6.8.0-1059-nvidia-lowlatencyUpgrade linux-image-5.15.0-186-generic-64kUpgrade linux-image-6.8.0-1059-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1112-awsUpgrade linux-image-aws-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-fips-5.15Upgrade linux-image-5.15.0-1104-intel-iot-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-fips-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-oem-20.04bUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1061-aws-fipsUpgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1046-gkeopUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1030-nvidia-tegraUpgrade linux-image-5.15.0-1104-kvmUpgrade linux-image-5.15.0-1117-azure-fdeUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-5.15.0-186-generic-lpaeUpgrade linux-image-kvm-5.15Upgrade linux-image-oem-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1064-gcp-64kUpgrade linux-image-virtualUpgrade linux-image-azure-fipsUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-ibmUpgrade linux-image-6.8.0-1059-nvidia-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-kvmUpgrade linux-image-5.15.0-1112-aws-64kUpgrade linux-image-oem-20.04dUpgrade linux-image-raspi-nolpaeUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-5.15.0-1106-raspiUpgrade linux-image-6.8.0-1058-oracleUpgrade linux-image-5.15.0-186-genericUpgrade linux-image-nvidiaUpgrade linux-image-5.15.0-1111-realtimeUpgrade linux-image-6.8.0-1033-xilinxUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-ibm-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1058-oracle-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-oem-22.04cUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-136-genericUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-5.15.0-1112-aws-fipsUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1064-gcp-fipsUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-fipsUpgrade linux-image-xilinxUpgrade linux-image-6.8.0-1061-raspiUpgrade linux-image-6.8.1-1056-realtimeUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1059-gkeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-gkeopUpgrade linux-image-azure-lts-22.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-ibm-classicUpgrade linux-image-genericUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-136-lowlatencyUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-gke-64kUpgrade linux-image-6.8.0-1061-ibmUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-virtual-5.15Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1063-azureUpgrade linux-image-gcp-6.8Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-realtimeUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-gke-64k-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-ibm-5.15Upgrade linux-image-azure-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1061-aws-64kUpgrade linux-image-5.15.0-1117-azureUpgrade linux-image-5.15.0-1112-gcp-fipsUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-lowlatency-5.15Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1064-gcpUpgrade linux-image-5.15.0-1107-nvidia-lowlatencyUpgrade linux-image-5.15.0-1107-intel-iotgUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-2050-raspi-realtimeUpgrade linux-image-azure-fde-5.15Upgrade linux-image-virtual-6.8Upgrade linux-image-5.15.0-184-lowlatencyUpgrade linux-image-5.15.0-1107-nvidiaUpgrade linux-image-5.15.0-1053-nvidia-tegra-igx-rtUpgrade linux-image-realtime-5.15Upgrade linux-image-raspi-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gcp-64kUpgrade linux-image-intelUpgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-azureUpgrade linux-image-6.8.0-1062-azure-fdeUpgrade linux-image-oracle-5.15Upgrade linux-image-oracleUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-5.15.0-1064-nvidia-tegraUpgrade linux-image-raspiUpgrade linux-image-azure-5.15Upgrade linux-image-5.15.0-1109-oracleUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-5.15Upgrade linux-image-6.8.0-136-generic-64kUpgrade linux-image-6.8.0-1030-nvidia-tegra-rtUpgrade linux-image-5.15.0-1117-azure-fipsUpgrade linux-image-oem-20.04cUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-azure-fde-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-awsUpgrade linux-image-6.8.0-1061-awsUpgrade linux-image-5.15.0-1106-ibmUpgrade linux-image-6.8.0-136-lowlatency-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-gke-6.8Upgrade linux-image-gkeUpgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-184-lowlatency-64kUpgrade linux-image-gcp-5.15Upgrade linux-image-generic-5.15Upgrade linux-image-6.8.0-1063-azure-fipsUpgrade linux-image-5.15.0-1108-gkeUpgrade linux-image-5.15.0-1075-xilinx-zynqmpUpgrade linux-image-xilinx-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-5.15.0-1095-gkeopUpgrade linux-image-5.15.0-186-fipsUpgrade linux-image-laptop-23.10Upgrade linux-image-azure-cvmUpgrade linux-image-aws-fips-5.15Upgrade linux-image-6.8.0-136-fipsUpgrade linux-image-6.8.0-1059-nvidiaUpgrade linux-image-5.15.0-1053-nvidia-tegra-igxUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-1064-nvidia-tegra-rt | May 25, 2026 | May 1, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 1, 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