In the Linux kernel, the following vulnerability has been resolved:
mtdchar: fix integer overflow in read/write ioctls
The "req.start" and "req.len" variables are u64 values that come from the user at the start of the function. We mask away the high 32 bits of "req.len" so that's capped at U32_MAX but the "req.start" variable can go up to U64_MAX which means that the addition can still integer overflow.
Use check_add_overflow() to fix this bug.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftool6.12Upgrade kernel6.12Upgrade kernel-livepatch-6.12.63-84.121Upgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpf-debuginfoUpgrade perf6.12Upgrade kernel6.12-headersUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-libbpfUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade perf6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-develUpgrade kernel6.12-tools-develUpgrade kernel6.12-toolsUpgrade python3-perf6.12Upgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfo-common-x86_64 | Feb 20, 2026 | Dec 16, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jan 12, 2026 | Jan 12, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Feb 24, 2026 | Dec 16, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 16, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-genericUpgrade linux-image-gke-6.8Upgrade linux-image-6.17.0-1009-oracleUpgrade linux-image-gke-64k-6.8Upgrade linux-image-ibmUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-gkeopUpgrade linux-image-aws-6.8Upgrade linux-image-generic-64k-6.17Upgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-xilinx-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-virtual-6.17Upgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-aws-64k-6.17Upgrade linux-image-aws-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-gcp-64kUpgrade linux-image-generic-6.17Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspiUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.17.0-1008-realtimeUpgrade linux-image-6.17.0-1010-azureUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-oracle-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-gke-64kUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-generic-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-nvidiaUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-gcp-fipsUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-virtual-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-lowlatency-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-ibm-6.8Upgrade linux-image-6.17.0-19-generic-64kUpgrade linux-image-realtime-6.17Upgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.17.0-19-genericUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.17.0-1009-awsUpgrade linux-image-azure-6.17Upgrade linux-image-azureUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-raspi-6.17Upgrade linux-image-gkeUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oem-24.04dUpgrade linux-image-gcp-6.17Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.17.0-1009-gcpUpgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.17.0-1010-raspiUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-oem-22.04bUpgrade linux-image-intel-iotgUpgrade linux-image-fips-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-xilinxUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-6.17Upgrade linux-image-gcp-6.8Upgrade linux-image-gcpUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-virtualUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.17.0-1009-aws-64kUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-generic-6.8Upgrade linux-image-oracleUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-fipsUpgrade linux-image-6.17.0-1009-oracle-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-oem-24.04aUpgrade linux-image-gkeop-6.8Upgrade linux-image-aws-6.17Upgrade linux-image-6.17.0-1009-gcp-64kUpgrade linux-image-oem-6.17Upgrade linux-image-oem-24.04cUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.17.0-1017-oem | Mar 17, 2026 | Dec 16, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 16, 2025 |
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