In the Linux kernel, the following vulnerability has been resolved:
fbdev: bitblit: bound-check glyph index in bit_putcs*
bit_putcs_aligned()/unaligned() derived the glyph pointer from the character value masked by 0xff/0x1ff, which may exceed the actual font's glyph count and read past the end of the built-in font array. Clamp the index to the actual glyph count before computing the address.
This fixes a global out-of-bounds read reported by syzbot.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-64k-debug-coreUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-devel-matchedUpgrade kernel-rt-64kUpgrade kernel-64k-debug-coreUpgrade kernel-rtUpgrade kernel-rt-modules-coreUpgrade libperfUpgrade kernel-modules-coreUpgrade kernel-rt-modules-extraUpgrade kernel-rt-64k-modulesUpgrade kernel-docUpgrade kernel-64k-coreUpgrade kernel-zfcpdump-modules-coreUpgrade rvUpgrade perfUpgrade kernel-rt-64k-modules-extraUpgrade python3-perfUpgrade kernel-tools-libs-develUpgrade kernel-64k-debug-modules-extraUpgrade kernel-zfcpdump-coreUpgrade kernelUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-debug-modules-extraUpgrade kernel-cross-headersUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-rt-64k-debug-develUpgrade kernel-64k-debugUpgrade kernel-debug-devel-matchedUpgrade kernel-uki-virt-addonsUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-headersUpgrade kernel-zfcpdump-modulesUpgrade kernel-64k-modules-extraUpgrade kernel-debug-uki-virtUpgrade kernel-64k-modules-coreUpgrade kernel-rt-develUpgrade kernel-modules-extraUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-develUpgrade kernel-64k-debug-develUpgrade kernel-uki-virtUpgrade kernel-debug-modules-extraUpgrade kernel-debugUpgrade kernel-64kUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-rt-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-debug-develUpgrade kernel-zfcpdump-develUpgrade kernel-rt-modulesUpgrade kernel-64k-debug-modules-coreUpgrade rtlaUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-debug-modulesUpgrade kernel-modulesUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-64k-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-64k-coreUpgrade bpftoolUpgrade kernel-rt-debugUpgrade kernel-debug-coreUpgrade kernel-64k-modulesUpgrade kernel-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-tools-libsUpgrade kernel-rt-64k-modules-coreUpgrade kernel-coreUpgrade kernel-rt-debug-coreUpgrade kernel-rt-64k-debugUpgrade kernel-rt-debug-devel | Feb 3, 2026 | Feb 2, 2026 |
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.247-246.989Upgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-tools-develUpgrade perfUpgrade perf-debuginfoUpgrade kernel-livepatch-5.15.197-138.220Upgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-tools | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12Upgrade bpftool6.12Upgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12-modules-extra-commonUpgrade kernel-modules-extraUpgrade kernel6.12-toolsUpgrade kernel-tools-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-debuginfo-common-aarch64Upgrade python3-perf6.12Upgrade perf6.12Upgrade kernel-headersUpgrade perf-debuginfoUpgrade kernelUpgrade kernel-libbpfUpgrade bpftool6.12-debuginfoUpgrade kernel-libbpf-develUpgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfoUpgrade kernel-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-livepatch-6.1.159-181.297Upgrade python3-perf6.12-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-develUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel6.12-libbpf-staticUpgrade kernel-libbpf-staticUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-livepatch-6.12.58-82.121Upgrade python3-perfUpgrade kernel6.12-headersUpgrade kernel-libbpf-debuginfoUpgrade kernel6.12-libbpfUpgrade kernel-toolsUpgrade kernel-modules-extra-commonUpgrade python3-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel6.12-libbpf-debuginfo | Jan 12, 2026 | Dec 8, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Dec 15, 2025 | Dec 15, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-libs | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perf | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernelUpgrade bpftoolUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-tools | Mar 10, 2026 | Mar 10, 2026 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Jan 15, 2026 | Dec 8, 2025 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Feb 3, 2026 | Dec 8, 2025 |
| Rocky_linux | — | Upgrade perf-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade kernel-debuginfoUpgrade rtlaUpgrade kernel-debug-develUpgrade kernel-modulesUpgrade python3-perfUpgrade kernel-devel-matchedUpgrade kernel-rt-debug-develUpgrade kernel-coreUpgrade kernel-debugUpgrade kernel-zfcpdumpUpgrade libperfUpgrade perfUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-tools-debuginfoUpgrade kernel-modules-coreUpgrade kernel-rt-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-kvmUpgrade kernel-uki-virtUpgrade kernel-debug-coreUpgrade kernel-debug-devel-matchedUpgrade bpftool-debuginfoUpgrade kernel-rt-modulesUpgrade kernel-modules-extraUpgrade kernel-develUpgrade kernel-rt-modules-coreUpgrade kernel-rt-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-debug-coreUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-debug-debuginfoUpgrade python3-perf-debuginfoUpgrade kernelUpgrade kernel-debug-modulesUpgrade kernel-debug-uki-virtUpgrade kernel-debug-modules-coreUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-modules-extraUpgrade kernel-tools-libs-develUpgrade kernel-rt-debugUpgrade kernel-debug-debuginfoUpgrade rvUpgrade libperf-debuginfoUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-uki-virt-addonsUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-debuginfo-common-s390xUpgrade kernel-debug-modules-extraUpgrade bpftoolUpgrade kernel-zfcpdump-coreUpgrade kernel-rtUpgrade kernel-rt-kvm | Feb 13, 2026 | Feb 11, 2026 |
| Ubuntu | — | Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-aws-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oracle-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-azure-5.15Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-5.15.0-1098-nvidiaUpgrade linux-image-5.15.0-173-generic-lpaeUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-5.15.0-1109-azure-fipsUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-aws-64k-6.8Upgrade linux-image-5.15.0-1100-oracleUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-virtual-6.17Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1055-nvidia-tegraUpgrade linux-image-5.15.0-1086-gkeopUpgrade linux-image-fips-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1098-intel-iotgUpgrade linux-image-5.15.0-1103-aws-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1103-aws-fipsUpgrade linux-image-oem-20.04bUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-raspi-6.17Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidia-5.15Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1099-gkeUpgrade linux-image-gkeopUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-raspi-5.15Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-realtime-5.15Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oem-20.04dUpgrade linux-image-oem-22.04cUpgrade linux-image-intelUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-6.8Upgrade linux-image-kvmUpgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gkeUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-virtualUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-azureUpgrade linux-image-raspiUpgrade linux-image-5.15.0-1097-raspiUpgrade linux-image-aws-lts-22.04Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-5.15.0-1097-ibmUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-173-genericUpgrade linux-image-azure-6.8Upgrade linux-image-gcpUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-5.15.0-1095-kvmUpgrade linux-image-oracle-5.15Upgrade linux-image-aws-6.17Upgrade linux-image-kvm-5.15Upgrade linux-image-aws-5.15Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-5.15.0-1110-azureUpgrade linux-image-raspi-6.8Upgrade linux-image-5.15.0-173-lowlatency-64kUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-realtime-6.17Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gke-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-gkeop-5.15Upgrade linux-image-realtime-6.8.1Upgrade linux-image-5.15.0-1044-nvidia-tegra-igxUpgrade linux-image-fips-6.8Upgrade linux-image-virtual-5.15Upgrade linux-image-xilinxUpgrade linux-image-xilinx-6.8Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-6.17Upgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-oracle-6.17Upgrade linux-image-5.15.0-1103-gcpUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-173-lowlatencyUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-aws-64k-6.17Upgrade linux-image-aws-64k-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-5.15.0-1055-nvidia-tegra-rtUpgrade linux-image-lowlatency-6.8Upgrade linux-image-gke-64kUpgrade linux-image-nvidiaUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-5.15.0-1067-xilinx-zynqmpUpgrade linux-image-5.15.0-1109-azureUpgrade linux-image-genericUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-awsUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-lowlatency-5.15Upgrade linux-image-oem-6.17Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-6.17Upgrade linux-image-generic-5.15Upgrade linux-image-fipsUpgrade linux-image-aws-fips-5.15Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oracleUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtimeUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-5.15.0-1044-nvidia-tegra-igx-rtUpgrade linux-image-generic-6.17Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-5.15.0-1102-realtimeUpgrade linux-image-5.15.0-1103-awsUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-gcp-6.8Upgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1103-gcp-fipsUpgrade linux-image-5.15.0-173-generic-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-azure-fips-5.15Upgrade linux-image-5.15.0-173-fipsUpgrade linux-image-5.15.0-1098-nvidia-lowlatencyUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-azure-6.17Upgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-gcp-5.15Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-oem-22.04aUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-ibmUpgrade linux-image-5.15.0-1094-intel-iot-realtimeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-oracle-64k-lts-24.04 | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Dec 8, 2025 |
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