In the Linux kernel, the following vulnerability has been resolved:
io_uring/napi: cap busy_poll_to 10 msec
Currently there's no cap on the maximum amount of time that napi is allowed to poll if no events are found, which can lead to kernel complaints on a task being stuck as there's no conditional rescheduling done within that loop.
Just cap it to 10 msec in total, that's already way above any kind of sane value that will reap any benefits, yet low enough that it's nowhere near being able to trigger preemption complaints.
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 perf6.18-debuginfoUpgrade python3-perf6.18Upgrade bpftool6.18-debuginfoUpgrade perf6.18Upgrade python3-perf6.18-debuginfoUpgrade kernel-livepatch-6.18.33-63.124Upgrade bpftool6.18Upgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-headersUpgrade kernel6.18Upgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18-modules-extraUpgrade kernel6.18-develUpgrade kernel6.18-tools-devel | Jul 13, 2026 | Jun 26, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 26, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-oracle-7.0Upgrade linux-image-azureUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-azure-fde-7.0Upgrade linux-image-gcpUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-raspi-realtimeUpgrade linux-image-oem-24.04aUpgrade linux-image-nvidiaUpgrade linux-image-generic-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gcp-7.0Upgrade linux-image-oem-24.04dUpgrade linux-image-gke-64k-7.0Upgrade linux-image-7.0.0-28-genericUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-raspiUpgrade linux-image-ibmUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1009-oemUpgrade linux-image-azure-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-genericUpgrade linux-image-oem-24.04bUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1003-gkeUpgrade linux-image-gke-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-virtual-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-awsUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1008-gcp-64kUpgrade linux-image-gkeUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-oracleUpgrade linux-image-oem-24.04Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-realtimeUpgrade linux-image-oem-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-1008-gcpUpgrade linux-image-raspi-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-generic-64k-7.0Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04cUpgrade linux-image-7.0.0-28-realtimeUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-gke-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-7.0.0-1003-gke-64kUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-virtualUpgrade linux-image-aws-64k-7.0Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oem-26.04aUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-28-realtime-64kUpgrade linux-image-gcp-64k-7.0 | Jul 20, 2026 | Jun 26, 2026 |
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