Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: The IOWQBITEXIT check is performed within the work run loop. Currently, this check is performed before running the pending work. Normally, this is completely fine, as the work items either end up blocking other tas...

EUVD-2026-13794

libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a NULL pointer dereference and memory leak in fuseuringinitqueue allows a local user to crash the FUSE daemon or cause resource exhaustion. When numaalloclocal fails during iouring queue entry...

kernel: io_uring: prevent opcode speculation

In the Linux kernel, the following vulnerability has been resolved: iouring: prevent opcode speculation sqe-opcode is used for different tables, make sure we santitise it against speculations...

Linux Distros Unpatched Vulnerability : CVE-2021-3491

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin...

kernel: Linux kernel: Memory leak in io_uring can lead to denial of service

A flaw was found in the Linux kernel's iouring subsystem. When removing provided buffers, the system fails to properly dispose of iobuffer structures, leading to a memory leak. A local attacker could exploit this vulnerability to cause a denial of service DoS due to memory exhaustion...