Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Avoid holding the freezemutex during the mmap operation. We use the map-freezemutex to prevent race conditions between the mapfreeze function and memory mapping operations with writable permissions. The way we currently hand...

CVE-2025-40342

In the Linux kernel, the following vulnerability has been resolved: nvme-fc: use lock accessing portstate and rport state nvmefcunregisterremote removes the remote port on a lport object at any point in time when there is no active association. This races with with the reconnect logic, because...

kernel: sch_hfsc: make hfsc_qlen_notify() idempotent

In the Linux kernel, the following vulnerability has been resolved: schhfsc: make hfscqlennotify idempotent hfscqlennotify is not idempotent either and not friendly to its callers, like fqcodeldequeue. Let's make it idempotent to ease qdisctreereducebacklog callers' life: 1. updatevf decreases...

Linux Distros Unpatched Vulnerability : CVE-2025-21853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: avoid holding freezemutex during mmap operation We use map-freezemutex to prevent races...

CVE-2025-21853

CVE-2025-21853 affects the Linux kernel BPF mmap path. The issue arises from holding map->freeze_mutex for the entire duration of mmap mm/VMA manipulations when ensuring writeable map contents, which could deadlock. The fixed approach holds freeze_mutex only during writeability checks, increme...