In the Linux kernel, the following vulnerability has been resolved:
xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()
As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning.
Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource
Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-develUpgrade kernelUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-develUpgrade kernel-livepatch-5.15.86-53.137Upgrade perfUpgrade perf-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-5.10.165-143.735Upgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64 | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Oct 24, 2025 | Oct 24, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 22, 2025 |
| Ubuntu | — | Upgrade linux-iotUpgrade linux-gcp-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-ibm-5.4Upgrade linux-gcp-fipsUpgrade linux-azureUpgrade linux-bluefieldUpgrade linux-gcpUpgrade linux-raspi-5.4Upgrade linux-azure-5.4Upgrade linux-awsUpgrade linux-hwe-5.15Upgrade linux-intel-iotg-5.15Upgrade linuxUpgrade linux-intel-iot-realtimeUpgrade linux-realtimeUpgrade linux-hwe-5.4Upgrade linux-riscv-5.15Upgrade linux-kvmUpgrade linux-gcp-5.15Upgrade linux-aws-5.4Upgrade linux-azure-5.15Upgrade linux-oracle-5.4Upgrade linux-azure-fdeUpgrade linux-raspiUpgrade linux-intel-iotgUpgrade linux-gkeopUpgrade linux-aws-fipsUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-nvidia-tegra-5.15Upgrade linux-oracle-5.15Upgrade linux-aws-5.15Upgrade linux-nvidiaUpgrade linux-xilinx-zynqmpUpgrade linux-oracleUpgrade linux-fipsUpgrade linux-ibmUpgrade linux-azure-fips | Oct 28, 2025 | Oct 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Oct 22, 2025 |
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