CVE-2023-23586

A use-after-free vulnerability was discovered in the Linux kernel's iouring subsystem. It was found that it is possible to insert a time namespace's vvar page to process memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the...

K53092542: Linux kernel vulnerability CVE-2021-20226

Security Advisory Description A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations ...

K84602160: Linux kernel vulnerability CVE-2021-3491

Security Advisory Description The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code...

SUSE CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

Linux kernel information disclosure vulnerability (CNVD-2023-54416)

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has an information disclosure vulnerability, which originates from timensinstall call currentissinglethreaded to determine whether the current process is...

CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

DEBIAN-CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

UBUNTU-CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

CVE-2023-23586

CVE-2023-23586 affects the Linux kernel io_uring subsystem. A time namespace vvar page can be leaked into a process via a page fault because timens_install’s single-thread check ignores io_uring io_worker threads; when the time namespace is destroyed, the vvar page may remain and a subsequent pag...

CVE-2023-23586 Use after free in io_uring in the Linux Kernel

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

CVE-2023-23586

Due to a vulnerability in the iouring subsystem, it is possible to leak kernel memory information to the user process. timensinstall calls currentissinglethreaded to determine if the current process is single-threaded, but this call does not consider iouring's ioworker threads, thus it is possibl...

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. Linux kernel has an information disclosure vulnerability, which originates from timensinstall call currentissinglethreaded to determine whether the current process is...

SUSE CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

SUSE CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

SUSE CVE-2020-36387

An issue was discovered in the Linux kernel before 5.8.2. fs/iouring.c has a use-after-free related to ioasynctaskfunc and ctx reference holding, aka CID-6d816e088c35...

SUSE CVE-2021-3491

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

SUSE CVE-2021-20226

A use-after-free flaw was found in the iouring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not...

SUSE CVE-2022-1116

Integer Overflow or Wraparound vulnerability in iouring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root. This issue affects: Linux Kernel versions prior to 5.4.189; version 5.4.24 and later versions...