Linux kernel io_uring SQ Buffer Overflow DoS

The vulnerability of the iosqthread function in the iouring/sqpoll.c module, a component of the Linux kernel’s asynchronous input/output interface, is related to the repeated use of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

Linux Distros Unpatched Vulnerability : CVE-2025-21633

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: iouring/sqpoll: zero sqd-thread on tctx errors Syzkeller reports: BUG: KASAN:...

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...

CVE-2025-21633

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2025-21633

Removed by vendor...

PT-2025-4314

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue has been identified in the Linux kernel, specifically in the io uring/sqpoll component. This issue occurs when the SQPOLL task tctx setup fails, which can happen d...

PT-2025-3309

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description A use-after-free vulnerability has been identified in the Linux kernel's io uring/sqpoll component. This issue arises due to error handling races and can be triggered when io uring alloc task...

kernel: io_uring/sqpoll: work around a potential audit memory leak

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: work around a potential audit memory leak kmemleak complains that there's a memory leak related to connect handling: unreferenced object 0xffff0001093bdf00 size 128: comm "iou-sqp-455", pid 457, jiffies 4294894164...

CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

SUSE CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

DEBIAN-CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

UBUNTU-CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079 io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079 io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079

CVE-2024-50079 affects the Linux kernel io_uring/sqpoll path. When sqpoll exits and cancels pending work items, it may call task_work from within io_uring_cancel_generic() while the task is not TASK_RUNNING, risking a scheduler splat as the ring mutex is grabbed in an interruptible state. The roo...

CVE-2024-50079 io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

CVE-2024-50079: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/sqpoll: ensure task state is TASKRUNNING when running taskwork When the sqpoll is exiting and cancels pending work items, it may need to run taskwork. If this happens from within iouringcancelgeneric, then it may be under...

PT-2024-33911

Name of the Vulnerable Software and Affected Versions: Linux kernel version 6.12.0-rc3-00113-g8d020023b155 Description: The issue arises when the sqpoll is exiting and cancels pending work items, potentially requiring the execution of task work. If this occurs within io uring cancel generic, it m...