In the Linux kernel, the following vulnerability has been resolved:
ipv6/sit: use DEV_STATS_INC() to avoid data-races
syzbot/KCSAN reported that multiple cpus are updating dev->stats.tx_error concurrently.
This is because sit tunnels are NETIF_F_LLTX, meaning their ndo_start_xmit() is not protected by a spinlock.
While original KCSAN report was about tx path, rx path has the same issue.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perfUpgrade python-perf-debuginfoUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernelUpgrade kernel-debuginfo-common-aarch64Upgrade python-perfUpgrade kernel-livepatch-5.15.86-53.137Upgrade kernel-tools-debuginfoUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64 | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-tools | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
| Ubuntu | — | Upgrade linux-lowlatency-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-bluefieldUpgrade linux-awsUpgrade linux-riscv-5.15Upgrade linux-aws-5.15Upgrade linux-gkeUpgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-raspiUpgrade linux-gcpUpgrade linux-intel-iot-realtimeUpgrade linux-oracle-5.15Upgrade linux-hwe-5.15Upgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-azure-fde-5.15Upgrade linux-azure-5.15Upgrade linux-gcp-5.15Upgrade linux-azureUpgrade linux-gkeopUpgrade linux-ibmUpgrade linux-nvidiaUpgrade linux-realtimeUpgrade linux-intel-iotgUpgrade linux-oracle | Jan 6, 2026 | Dec 24, 2025 |
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