In the Linux kernel, the following vulnerability has been resolved:
crypto: ecc - Fix carry overflow in vli multiplication
The carry flag calculation fails when r01.m_high is saturated (0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows.
The condition (r01.m_high < product.m_high) doesn't handle the case where r01.m_high == product.m_high and an additional carry exists from lower-bit overflow.
When commit 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") introduced crypto/ecc.c, it split the muladd() function in the micro-ecc library into separate mul_64_64() and add_128_128() helpers. It seems the check got lost in translation.
Add proper handling for this boundary by accounting for the carry from the lower addition.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-debuginfo-common-x86_64Upgrade perf6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-livepatch-6.18.39-79.141Upgrade kernel6.18-debuginfo-common-aarch64Upgrade microvm-kernel6.18Upgrade kernel6.18-modules-extraUpgrade bpftool6.18-debuginfoUpgrade python3-perfUpgrade kernel6.18-debuginfoUpgrade kernel6.12-toolsUpgrade kernel-modules-extra-commonUpgrade kernel-develUpgrade kernel6.12Upgrade perf6.18-debuginfoUpgrade kernel6.12-tools-develUpgrade perfUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.18-headersUpgrade python3-perf6.12Upgrade bpftool6.12Upgrade bpftool6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.12-modules-extraUpgrade kernel6.12-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel6.18-modules-extra-commonUpgrade kernel6.12-develUpgrade python3-perf-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel-livepatch-6.12.100-125.179Upgrade kernel6.18-develUpgrade perf6.12Upgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-tools-develUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernelUpgrade python3-perf6.18Upgrade kernel-livepatch-6.1.180-225.360Upgrade bpftoolUpgrade kernel-modules-extraUpgrade perf6.18Upgrade kernel-toolsUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.12-headers | Aug 18, 2026 | Jul 25, 2026 |
| Debian | — | Upgrade linux-6.12Upgrade linux-6.1Upgrade linux | Jul 28, 2026 | Jul 28, 2026 |
| Redhat_linux | — | No solution exists | Jul 31, 2026 | Jul 25, 2026 |
| Ubuntu | — | Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-virtualUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-ibm-7.0Upgrade linux-image-6.8.0-1035-nvidia-tegra-rtUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-generic-64kUpgrade linux-image-azure-lts-26.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-realtime-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-genericUpgrade linux-image-gkeUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-oracleUpgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-gke-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-virtual-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-nvidia-tegraUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-7.0.0-1013-oemUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-generic-64k-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-gcpUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-nvidiaUpgrade linux-image-generic-7.0Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-nvidia-bosUpgrade linux-image-raspi-7.0Upgrade linux-image-oem-26.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-awsUpgrade linux-image-ibmUpgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-oracle-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-nvidia-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-gke-64kUpgrade linux-image-azureUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-oem-26.04aUpgrade linux-image-gcp-7.0Upgrade linux-image-gke-64k-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-raspiUpgrade linux-image-oem-26.04bUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-6.8.0-1035-nvidia-tegraUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-7.0.0-2018-nvidia-bos-64k | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 3, 2026 | Jul 25, 2026 |
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