In the Linux kernel, the following vulnerability has been resolved:
tracing: Add recursion protection in kernel stack trace recording
A bug was reported about an infinite recursion caused by tracing the rcu events with the kernel stack trace trigger enabled. The stack trace code called back into RCU which then called the stack trace again.
Expand the ftrace recursion protection to add a set of bits to protect events from recursion. Each bit represents the context that the event is in (normal, softirq, interrupt and NMI).
Have the stack trace code use the interrupt context to protect against recursion.
Note, the bug showed an issue in both the RCU code as well as the tracing stacktrace code. This only handles the tracing stack trace side of the bug. The RCU fix will be handled separately.
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 |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-develUpgrade perf6.12-debuginfoUpgrade kernel6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12-modules-extraUpgrade bpftool6.12Upgrade python3-perf6.12-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-headersUpgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12Upgrade kernel6.12-toolsUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-libbpf-staticUpgrade kernel-livepatch-6.12.79-101.147Upgrade kernel6.12-libbpfUpgrade kernel6.12-tools-devel | May 4, 2026 | Feb 14, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Feb 14, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1061-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-24.04cUpgrade linux-image-6.8.0-1059-nvidia-lowlatency-64kUpgrade linux-image-6.17.0-1031-nvidiaUpgrade linux-image-6.8.0-1061-raspiUpgrade linux-image-awsUpgrade linux-image-6.8.0-2050-raspi-realtimeUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-oem-24.04bUpgrade linux-image-6.8.0-1062-azure-fdeUpgrade linux-image-6.8.0-136-generic-64kUpgrade linux-image-aws-fipsUpgrade linux-image-fipsUpgrade linux-image-6.8.1-1056-realtimeUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1064-gcpUpgrade linux-image-6.8.0-1064-gcp-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1030-nvidia-tegra-rtUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-6.17.0-1021-azureUpgrade linux-image-aws-fips-6.8Upgrade linux-image-virtualUpgrade linux-image-6.17.0-1018-azure-fdeUpgrade linux-image-aws-64k-6.8Upgrade linux-image-gke-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.17.0-1021-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-realtimeUpgrade linux-image-oem-6.17Upgrade linux-image-6.8.0-1064-gcp-fipsUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-oracle-6.17Upgrade linux-image-6.8.0-1059-nvidia-lowlatencyUpgrade linux-image-6.8.0-1033-xilinxUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-azure-fde-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-azure-fde-6.17Upgrade linux-image-lowlatency-6.8Upgrade linux-image-oracleUpgrade linux-image-nvidia-64k-6.17Upgrade linux-image-nvidia-6.8Upgrade linux-image-nvidia-6.17Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-136-lowlatencyUpgrade linux-image-6.17.0-1019-oracleUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.17.0-1031-nvidia-64kUpgrade linux-image-gcp-6.17Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-laptop-23.10Upgrade linux-image-generic-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-ibmUpgrade linux-image-6.8.0-136-genericUpgrade linux-image-oem-22.04Upgrade linux-image-oem-20.04bUpgrade linux-image-lowlatencyUpgrade linux-image-azure-6.17Upgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1063-azureUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1063-azure-fipsUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-gcp-fipsUpgrade linux-image-gcpUpgrade linux-image-6.17.0-1021-gcp-64kUpgrade linux-image-6.8.0-136-lowlatency-64kUpgrade linux-image-6.8.0-1059-nvidiaUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1058-oracleUpgrade linux-image-6.17.0-1030-oemUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-20.04cUpgrade linux-image-oem-20.04Upgrade linux-image-gcp-64kUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-oem-24.04aUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-nvidia-hwe-24.04Upgrade linux-image-xilinx-6.8Upgrade linux-image-realtime-6.17Upgrade linux-image-raspi-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-genericUpgrade linux-image-fips-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1030-nvidia-tegraUpgrade linux-image-6.8.0-1061-aws-64kUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oem-20.04dUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-azureUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1059-gkeUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oem-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-136-fipsUpgrade linux-image-6.8.0-1061-ibmUpgrade linux-image-nvidiaUpgrade linux-image-intel-iotgUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-1059-gke-64kUpgrade linux-image-6.17.0-1019-oracle-64kUpgrade linux-image-oracle-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-22.04bUpgrade linux-image-oem-22.04aUpgrade linux-image-raspi-realtimeUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1046-gkeopUpgrade linux-image-nvidia-64k-hwe-24.04Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1058-oracle-64kUpgrade linux-image-gkeUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1061-aws-fipsUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1059-nvidia-64kUpgrade linux-image-6.17.0-1018-realtimeUpgrade linux-image-xilinxUpgrade linux-image-raspiUpgrade linux-image-oem-24.04dUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-64k-6.8 | Jul 21, 2026 | Jul 20, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 17, 2026 | Feb 14, 2026 |
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