In the Linux kernel, the following vulnerability has been resolved:
dm flakey: don't corrupt the zero page
When we need to zero some range on a block device, the function __blkdev_issue_zero_pages submits a write bio with the bio vector pointing to the zero page. If we use dm-flakey with corrupt bio writes option, it will corrupt the content of the zero page which results in crashes of various userspace programs. Glibc assumes that memory returned by mmap is zeroed and it uses it for calloc implementation; if the newly mapped memory is not zeroed, calloc will return non-zeroed memory.
Fix this bug by testing if the page is equal to ZERO_PAGE(0) and avoiding the corruption in this case.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernelUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.173-154.642Upgrade kernel-livepatch-4.14.309-231.529Upgrade kernel-toolsUpgrade bpftoolUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.15.102-61.139Upgrade perfUpgrade python-perfUpgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade python-perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade perfUpgrade python3-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-libbpf-staticUpgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-libbpf-develUpgrade kernelUpgrade kernel-headersUpgrade kernel-libbpfUpgrade kernel-livepatch-6.1.19-30.43Upgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64 | Feb 20, 2026 | Dec 30, 2025 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-hwe-5.15Upgrade linux-oracle-5.15Upgrade linux-fipsUpgrade linux-gcpUpgrade linux-gkeopUpgrade linux-gcp-5.4Upgrade linux-ibmUpgrade linux-azureUpgrade linux-azure-5.4Upgrade linux-oracleUpgrade linux-kvmUpgrade linux-nvidiaUpgrade linux-lowlatencyUpgrade linux-riscv-5.15Upgrade linux-gcp-5.15Upgrade linux-azure-5.15Upgrade linux-aws-fipsUpgrade linux-azure-fipsUpgrade linux-azure-fdeUpgrade linux-realtimeUpgrade linux-iotUpgrade linux-gcp-fipsUpgrade linux-hwe-5.4Upgrade linux-intel-iotgUpgrade linux-intel-iotg-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-gkeUpgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-raspiUpgrade linux-aws-5.4Upgrade linux-intel-iot-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-awsUpgrade linux-nvidia-tegraUpgrade linux-raspi-5.4Upgrade linux-ibm-5.4Upgrade linux-aws-5.15Upgrade linux-oracle-5.4Upgrade linux-bluefield | Jan 6, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 30, 2025 |
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