In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: ns: Limit the maximum server registration per node
Current code does no bound checking on the number of servers added per node. A malicious client can flood NEW_SERVER messages and exhaust memory.
Fix this issue by limiting the maximum number of server registrations to 256 per node. If the NEW_SERVER message is received for an old port, then don't restrict it as it will get replaced. While at it, also rate limit the error messages in the failure path of qrtr_ns_worker().
Note that the limit of 256 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 19, 2026 |
| Ubuntu | — | Upgrade linux-image-oem-24.04bUpgrade linux-image-ibm-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gcpUpgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oem-20.04bUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-24.04dUpgrade linux-image-kvmUpgrade linux-image-ibm-classicUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-1008-aws-64kUpgrade linux-image-6.8.0-1059-gkeUpgrade linux-image-6.8.0-1033-xilinxUpgrade linux-image-fips-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-1059-nvidia-64kUpgrade linux-image-6.8.0-1059-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-136-lowlatencyUpgrade linux-image-raspiUpgrade linux-image-azure-fde-7.0Upgrade linux-image-oem-24.04cUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1030-nvidia-tegraUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oracle-7.0Upgrade linux-image-6.8.0-1059-nvidia-lowlatencyUpgrade linux-image-azure-fipsUpgrade linux-image-oracle-64kUpgrade linux-image-xilinxUpgrade linux-image-7.0.0-1007-gcp-64kUpgrade linux-image-6.8.0-1061-aws-fipsUpgrade linux-image-7.0.0-28-genericUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-7.0.0-1007-oracle-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1046-gkeopUpgrade linux-image-6.8.0-1064-gcp-fipsUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-oem-20.04cUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1014-raspiUpgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1058-oracleUpgrade linux-image-6.8.0-1059-gke-64kUpgrade linux-image-6.8.0-1061-raspiUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-136-genericUpgrade linux-image-azure-7.0Upgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-7.0Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-gke-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-lowlatency-64kUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-27-generic-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-azureUpgrade linux-image-ibmUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1064-gcp-64kUpgrade linux-image-7.0.0-1013-nvidiaUpgrade linux-image-7.0.0-1007-gcpUpgrade linux-image-nvidia-tegraUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1058-oracle-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-oem-22.04dUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-gcp-64kUpgrade linux-image-realtime-64kUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1014-raspi-realtimeUpgrade linux-image-raspi-7.0Upgrade linux-image-oracleUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gke-6.8Upgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1013-nvidia-64kUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-lowlatency-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-27-realtime-64kUpgrade linux-image-7.0.0-1009-ibmUpgrade linux-image-7.0.0-1008-oemUpgrade linux-image-7.0.0-1007-oracleUpgrade linux-image-oem-26.04aUpgrade linux-image-6.8.0-1061-ibmUpgrade linux-image-oracle-6.8Upgrade linux-image-oem-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-virtual-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1059-nvidiaUpgrade linux-image-6.8.0-1030-nvidia-tegra-rtUpgrade linux-image-laptop-23.10Upgrade linux-image-realtimeUpgrade linux-image-6.8.0-1061-aws-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-6.8.1-1056-realtimeUpgrade linux-image-realtime-6.8.1Upgrade linux-image-generic-7.0Upgrade linux-image-genericUpgrade linux-image-azure-fde-6.8Upgrade linux-image-awsUpgrade linux-image-6.8.0-136-generic-64kUpgrade linux-image-6.8.0-1064-gcpUpgrade linux-image-6.8.0-1062-azure-fdeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-7.0.0-27-realtimeUpgrade linux-image-6.8.0-136-lowlatency-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gkeopUpgrade linux-image-gke-64k-6.8Upgrade linux-image-6.8.0-2050-raspi-realtimeUpgrade linux-image-7.0.0-1008-awsUpgrade linux-image-virtualUpgrade linux-image-oem-7.0Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-7.0.0-27-genericUpgrade linux-image-6.8.0-1063-azure-fipsUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1063-azureUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-6.8.0-136-fipsUpgrade linux-image-6.8.0-1061-awsUpgrade linux-image-realtime-7.0Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-fips | Jul 1, 2026 | May 19, 2026 |
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