SUSE CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

CVE-2026-64525

The CVE describes a Linux kernel xfrm policy_bydst RCU synchronization issue where xfrm_policy_fini() called synchronize_rcu() during namespace exit, causing long RCUs and heavy cleanup workload when many namespaces are torn down. The fix moves the policy flush and related workqueue drains into a...

PT-2026-64756

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.18 Description An issue exists in the xfrm module where the xfrm policy fini function incorrectly calls synchronize rcu within the .exit handler of xfrm net ops. This violates the guidelines in include/net/net namespace....

CVE-2026-43292

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: prevent RCU stalls in kasanreleasevmallocnode When CONFIGPAGEOWNER is enabled, freeing KASAN shadow pages during vmalloc cleanup triggers expensive stack unwinding that acquires RCU read locks. Processing a large...

AZL-35453 CVE-2023-52447 affecting package hyperv-daemons for versions less than 5.15.153.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Defer the free of inner map when necessary When updating or deleting an inner map in map array or map htab, the map may still be accessed by non-sleepable program or sleepable program. However bpfmapfdputptr decreases the...

DEBIAN-CVE-2023-52447

In the Linux kernel, the following vulnerability has been resolved: bpf: Defer the free of inner map when necessary When updating or deleting an inner map in map array or map htab, the map may still be accessed by non-sleepable program or sleepable program. However bpfmapfdputptr decreases the...