Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the iommu/vt-d driver failing to clear the Present bit when removing context entries. This can le...

CVE-2026-23271

CVE-2026-23271 affects the Linux kernel perf subsystem. The vulnerability arises from a race between __perf_event_overflow() and perf_remove_from_context() where __perf_event_overflow() may run with only preemption disabled for some callchains, allowing a race against perf_event_exit_event() and ...

CVE-2026-23271 perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfeventoverflow vs perfremovefromcontext race Make sure that perfeventoverflow runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled...

CVE-2026-23271

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfeventoverflow vs perfremovefromcontext race Make sure that perfeventoverflow runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled...

Linux Distros Unpatched Vulnerability : CVE-2026-23271

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf: Fix perfeventoverflow vs perfremovefromcontext race Make sure that perfeventoverflow runs with IRQs disabled for all possible callchains. Specifically the...

PT-2026-26576

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists between the perf event overflow function and perf remove from context. The issue occurs because perf event overflow may run with only preemption disabled instead ...

PT-2025-16712

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue concerns a problem with gang directory lifetimes in the Linux kernel. Specifically, the creation of a gang returns an opened gang directory, which should be removed when closed...

GHSA-R5W7-F542-Q2J4 Potential DoS when using ContextLines integration

Impact The ContextLines integration uses readable streams to more efficiently use memory when reading files. The ContextLines integration is used to attach source context to outgoing events. The stream was not explicitly closed after use. This could lead to excessive amounts of file handles open ...

DEBIAN-CVE-2022-48893

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Cleanup partial engine discovery failures If we abort driver initialisation in the middle of gt/engine discovery, some engines will be fully setup and some not. Those incompletely setup engines only have...

CVE-2022-47522

The IEEE 802.11 specifications through 802.11ax allow physically proximate attackers to intercept possibly cleartext target-destined frames by spoofing a target's MAC address, sending Power Save frames to the access point, and then sending other frames to the access point such as authentication...