Linux kernel io-workqueue denial of service vulnerability

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel versions prior to 5.15-rc1 have a denial-of-service vulnerability that stems from a false cancel operation that triggers the commit of a new io-uring, resulting in a kernel error. An attacke...

CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

DEBIAN-CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

UBUNTU-CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

Design/Logic Flaw

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel versions prior to 5.15-rc1 have a denial-of-service vulnerability that stems from a false cancel operation that triggers the commit of a new io-uring, resulting in a kernel error. An attacke...

CVE-2021-4023

CVE-2021-4023 affects the Linux kernel io-workqueue, with pre-5.15-rc1 kernels able to panic if an improper cancellation triggers new io-uring submissions during memory shortage. The flaw enables a local user with io-uring permissions to crash the system. Connected sources indicate patches/versio...

CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to...

PT-2022-7497 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel version 5.17.0-smp-DEV 801 Description: The vulnerability is related to the io uring component in the Linux kernel. Looping approximately 65535 times doing kmalloc calls can trigger soft lockups, especially with DEBUG features...

CVE-2021-4023

A flaw was found in the io-workqueue implementation in the Linux kernel. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to execute io-uring requests to...

PT-2021-7118 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.15-rc1 Description: The issue is related to the io-workqueue implementation in the Linux kernel, which lacks protection of internal data. This can be exploited to cause a denial of service. A local user with...

UBUNTU-CVE-2021-41073

looprwiter in fs/iouring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORINGOPPROVIDEBUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc//maps for exploitation...

CVE-2021-41073

looprwiter in fs/iouring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORINGOPPROVIDEBUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc//maps for exploitation...

PT-2021-6072 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel versions 5.10 through 5.14.6 Description: The issue is related to a buffer overflow in the loop rw iter function in the Linux kernel's io uring subsystem, allowing local users to gain privileges. This is due to an error in the...

PT-2021-8040 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux Kernel affected versions not specified Description: A flaw was found in the Linux kernel’s io uring implementation, allowing an attacker with a local account to corrupt system memory, crash the system, or escalate privileges. The issue ...

PT-2021-8251 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a memory leak in the io init wq offload function of the Linux kernel's io uring component. This leak occurs when io uring enter is called in parallel, causing t...

PT-2022-1369 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A use-after-free flaw was found in the Linux kernel’s io uring subsystem, allowing a local user to crash or escalate their privileges on the system. This issue is related to the way a...

PT-2024-11062 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the io uring feature in the Linux kernel, where the function io uring cancel sqpoll is intended to cancel all requests of a specified context. However, it uses...

PT-2022-2644 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to 5.4.189 Description: The issue is related to an integer overflow in the io uring interface of the Linux Kernel, which can be exploited by a local attacker to cause memory corruption and escalate privileges to th...