In the Linux kernel, the following vulnerability has been resolved:
kheaders: Use array declaration instead of char
Under CONFIG_FORTIFY_SOURCE, memcpy() will check the size of destination and source buffers. Defining kernel_headers_data as "char" would trip this check. Since these addresses are treated as byte arrays, define them as arrays (as done everywhere else).
This was seen with:
$ cat /sys/kernel/kheaders.tar.xz >> /dev/null
detected buffer overflow in memcpy kernel BUG at lib/string_helpers.c:1027! ... RIP: 0010:fortify_panic+0xf/0x20 [...] Call Trace: <TASK> ikheaders_read+0x45/0x50 [kheaders] kernfs_fop_read_iter+0x1a4/0x2f0 ...
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade python-perfUpgrade kernel-develUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-livepatch-5.15.117-72.142Upgrade perfUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.184-174.730 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-staticUpgrade kernel-libbpf-develUpgrade kernelUpgrade kernel-livepatch-6.1.29-47.49Upgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade perfUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade bpftoolUpgrade python3-perfUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-devel | Feb 20, 2026 | Dec 24, 2025 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
| Ubuntu | — | Upgrade linux-intel-iotgUpgrade linux-raspiUpgrade linux-fipsUpgrade linux-aws-5.15Upgrade linux-gcpUpgrade linux-nvidia-tegra-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-nvidia-tegraUpgrade linux-nvidiaUpgrade linux-riscv-5.15Upgrade linux-ibm-5.15Upgrade linux-oracle-5.15Upgrade linux-ibm-5.4Upgrade linux-oracleUpgrade linux-azure-fipsUpgrade linux-oracle-5.4Upgrade linux-aws-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azureUpgrade linux-hwe-5.4Upgrade linux-aws-fipsUpgrade linux-bluefieldUpgrade linux-azure-5.15Upgrade linux-ibmUpgrade linuxUpgrade linux-gcp-5.4Upgrade linux-raspi-5.4Upgrade linux-iotUpgrade linux-gcp-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-realtimeUpgrade linux-gcp-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-kvmUpgrade linux-nvidia-tegra-igxUpgrade linux-gkeopUpgrade linux-awsUpgrade linux-hwe-5.15Upgrade linux-azure-5.4 | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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