CVE-2023-0468

A use-after-free flaw was found in iouring/poll.c in iopollcheckevents in the iouring subcomponent in the Linux Kernel due to a race condition of pollrefs. This flaw may cause a NULL pointer dereference...

CVE-2023-0469

A use-after-free flaw was found in iouring/filetable.c in ioinstallfixedfile in the iouring subcomponent in the Linux Kernel during call cleanup. This flaw may lead to a denial of service...

PT-2023-9437 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a race condition in the io uring/poll component of the Linux kernel, specifically with multishot requests. A previous commit fixed a poll race that can occur, b...

GSD-2023-1000144 io_uring: Fix a null-ptr-deref in io_tctx_exit_cb()

iouring: Fix a null-ptr-deref in iotctxexitcb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.83 by commit...

GSD-2023-1000044 io_uring: Fix a null-ptr-deref in io_tctx_exit_cb()

iouring: Fix a null-ptr-deref in iotctxexitcb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.13 by commit...

Linux io_uring Unauthorized Access

The vulnerability of the iouring subsystem in the Linux operating system is related to an unacceptable reduction in the link counter, which can lead to a vulnerability after exploitation. Exploiting this vulnerability may allow an attacker to gain unauthorized access to protected information...

PT-2023-9428

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc3-syzkaller-16369-g358a161a6a9e Description The issue is related to a lock overflowing for IOPOLL in the io uring component of the Linux kernel. Syzbot reports an issue with overflow filling for IOPOLL,...

CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

DEBIAN-CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

UBUNTU-CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

CVE-2022-4696

CVE-2022-4696 is a use-after-free in the Linux kernel’s io_uring subsystem (IORING_OP_SPLICE). If IO_WQ_WORK_FILES is missing, a path including current->nsproxy can lead to reference counter mismanagement and a UAF. Affected component: io_uring/splice paths in kernel 5.10.x. Impact is local: p...

CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

Ubuntu 22.10 : Linux kernel (IBM) vulnerabilities (USN-5793-4)

The remote Ubuntu 22.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5793-4 advisory. It was discovered that the iouring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free...

Ubuntu 22.10 : Linux kernel vulnerabilities (USN-5793-3)

The remote Ubuntu 22.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5793-3 advisory. It was discovered that the iouring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from incorrect manipulation of iouring and IORINGOPSPLICE, resulting in memory reuse after release...

CVE-2022-4696: Release of Invalid Pointer or Reference

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current-nsproxy, so its reference counter is not increased. This assumption is not alwa...

PT-2023-9422 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to errors in memory release in the io uring component of the Linux kernel. Exploitation of this issue may allow an attacker to cause a denial of service. The probl...

Ubuntu 22.10 : Linux kernel vulnerabilities (USN-5793-1)

The remote Ubuntu 22.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5793-1 advisory. It was discovered that the iouring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free...