2221 matches found
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring: Check whether iowq is killed before queuing it. Task work can be executed after the task has gone through iouring termination—whether it’s the final taskwork run or the fallback path. In this case, task work will find th...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerabilities have been resolved: iouring/sqpoll: a workaround for a potential audit memory leak kmemleak reports a memory leak related to handling connect calls: Unreferenced object 0xffff0001093bdf00 size 128: Command "iou-sqp-455", PID 457, jiffies 42948941...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring: A potential deadlock has been fixed in ioregisteriowqmaxworkers. The ioregisteriowqmaxworkers function calls ioputsqdata, which acquires the sqd-lock without releasing the uringlock. Similar to the commit 009ad9f0c6ee...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring/rw: fixed the omission of the NOWAIT check for ODIRECT write operations. When iouring initiates a write operation, it calls kiocbstartwrite, which triggers the super block rwsem. This prevents any freezes from occurring...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring: Check whether we need to reschedule during overflow flushing. In terms of normal application usage, this list will always be empty. If an application does experience an overflow, it will have a few entries in this list...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring: check for non-NULL file pointer in iofilecanpoll In earlier kernels, it was possible to trigger a NULL pointer dereference off the forced async preparation path, if no file had been assigned. The trace leading to that...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: iouring/tctx: A workaround has been implemented for the allocation error issue with xastore. The syzbot triggered the following WARNON: WARNING: CPU: 0, PID: 16, in iouring/tctx.c, line 51: iouringfree+0xfa/0x140. The warning...
CVE-2025-21686
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...
CVE-2025-21686
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...
CVE-2025-21686
The initial CVE-2025-21686 entry is marked as rejected, but connected sources describe a real Linux kernel issue related to io_uring: when cloning buffers between uring instances A and B that use different memory accounting contexts, closing A before B can decrement B’s pinned memory counters, po...
Astra Linux - уязвимость в linux-5.10
An out-of-bounds memory access flaw was found in the iouring SQ/CQ rings functionality in the Linux kernel. This issue could allow a local user to crash the system...
Astra Linux - уязвимость в linux-5.10
In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...
CVE-2022-2327
iouring use workflags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORINGOP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We...
Ubuntu: Security Advisory (USN-7234-3)
The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...
USN-7234-3 linux-azure, linux-azure-5.4 vulnerabilities
Ye Zhang and Nicolas Wu discovered that the iouring subsystem in the Linux kernel did not properly handle locking for rings with IOPOLL, leading to a double-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...
USN-7234-2 linux-hwe-5.4 vulnerabilities
Ye Zhang and Nicolas Wu discovered that the iouring subsystem in the Linux kernel did not properly handle locking for rings with IOPOLL, leading to a double-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...
Important: kernel
Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: bridge: xmit: make sure we have at least eth header len bytes CVE-2024-38538 In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Fix BUGON on mmapPROTWRITE, MAPPRIVATE...
CVE-2025-21655
In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...
DEBIAN-CVE-2025-21655
In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...