kernel: Linux kernel io_uring: Local privilege escalation, information disclosure, or denial of service via use-after-free

A flaw was found in the Linux kernel's iouring subsystem. A local attacker with low privileges could exploit a use-after-free vulnerability when the sq-thread object is prematurely released while still being accessed by the iouringshowfdinfo function. This flaw could lead to privilege escalation,...

USN-8015-5: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - SMB network file system; - iouring subsystem; CVE-2025-38561, CVE-2025-39698, CVE-2025-40019...

USN-8015-5 linux-lowlatency, linux-xilinx vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - SMB network file system; - iouring subsystem; CVE-2025-38561, CVE-2025-39698, CVE-2025-40019...

K000160076: Linux kernel vulnerability CVE-2025-40047

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: always prune wait queue entry in iowaitidwait For a successful return, always remove our entry from the wait queue entry list. Previously this was skipped if a cancelation was in...

SUSE CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

kernel: Linux kernel: Data corruption and system instability due to improper io_uring/net buffer handling

A flaw was found in the Linux kernel's iouring/net component. This vulnerability arises when ring provided buffers are partially committed during network operations, particularly when MSGWAITALL is enabled or with streaming sockets. A local attacker could exploit this by causing multiple socket...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 9 : kernel (RHSA-2026:2766)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2766 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: xHCI driver...

kernel: Linux kernel: Data corruption and system instability due to improper io_uring/net buffer handling

A flaw was found in the Linux kernel's iouring/net component. This vulnerability arises when ring provided buffers are partially committed during network operations, particularly when MSGWAITALL is enabled or with streaming sockets. A local attacker could exploit this by causing multiple socket...

CVE-2026-23113

A flaw was found in the Linux kernel's iouring subsystem. When io-wq worker threads process extremely long-running I/O operations such as large reads from /dev/msr devices, the exit path may be delayed for an extended period because the IOWQBITEXIT flag is only checked before the work loop begins...

RHEL 9 : kernel (RHSA-2026:2759)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:2759 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: xHCI driver...

RLSA-2026:2282 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation CVE-2025-38415 kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it...

CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

UBUNTU-CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113 io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113 io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop

In the Linux kernel, the following vulnerability has been resolved: iouring/io-wq: check IOWQBITEXIT inside work run loop Currently this is checked before running the pending work. Normally this is quite fine, as work items either end up blocking which will create a new worker for other items, or...

CVE-2026-23113

CVE-2026-23113 affects the Linux kernel io-uring/io-wq component. The issue stems from not checking IO_WQ_BIT_EXIT in the io_worker_handle_work() loop, causing long exits when processing large pending reads (e.g., 2GB reads from /dev/msr* with >16MB per read). Evidence in the advisory shows th...