Astra Linux – vulnerability in linux-6.12, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this check is performed before executing pending work items. Normally this works fine, as work items either block triggering creation of a new worker for subsequent...

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...