In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Do not warn in ring_buffer_map_get_reader() when reader catches up
The function ring_buffer_map_get_reader() is a bit more strict than the other get reader functions, and except for certain situations the rb_get_reader_page() should not return NULL. If it does, it triggers a warning.
This warning was triggering but after looking at why, it was because another acceptable situation was happening and it wasn't checked for.
If the reader catches up to the writer and there's still data to be read on the reader page, then the rb_get_reader_page() will return NULL as there's no new page to get.
In this situation, the reader page should not be updated and no warning should trigger.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade perf6.12Upgrade bpftool6.12Upgrade kernel6.12-libbpfUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.12-modules-extraUpgrade kernel6.12-develUpgrade kernel6.12-debuginfoUpgrade kernel6.12-headersUpgrade perf6.12-debuginfoUpgrade kernel-livepatch-6.12.58-82.121Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-debuginfo-common-x86_64Upgrade python3-perf6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12 | Apr 7, 2026 | Dec 16, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-azureUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-aws-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-raspi-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-aws-64kUpgrade linux-image-generic-64kUpgrade linux-image-aws-64k-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-oem-6.17Upgrade linux-image-virtual-6.17Upgrade linux-image-raspiUpgrade linux-image-gcp-64kUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-oracleUpgrade linux-image-virtualUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-awsUpgrade linux-image-azure-6.17Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-oracle-6.17Upgrade linux-image-realtimeUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-genericUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-generic-6.17Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-6.17.0-1008-raspi | Feb 13, 2026 | Feb 12, 2026 |
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