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...

SUSE 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...

SUSE CVE-2022-2602

iouring UAF, Unix SCM garbage collection...

SUSE CVE-2022-3103

off-by-one in iouring module...

SUSE CVE-2022-3176

There exists a use-after-free in iouring in the Linux kernel. Signalfdpoll and binderpoll use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the iouring poll doesn't handle POLLFREE. This allows a...

SUSE CVE-2022-3910

Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in iouring leads to Use-After-Free and Local Privilege Escalation. When iomsgring was invoked with a fixed file, it called iofputfile which improperly decreased its reference count...

SUSE 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...

SUSE CVE-2022-29582

In the Linux kernel before 5.17.3, fs/iouring.c has a use-after-free due to a race condition in iouring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently...

SUSE CVE-2022-29968

An issue was discovered in the Linux kernel through 5.17.5. iorwinitfile in fs/iouring.c lacks initialization of kiocb-private...

SUSE 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...

SUSE 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...

The vulnerability of the io_statx() function in the fs/io_uring.c module of the io_uring component of the Linux operating system allows a attacker to cause a service failure or increase privileges.

The vulnerability of the iostatx function in the fs/iouring.c module of the iouring component of the Linux operating system’s kernel is related to the use of previously freed memory. Exploiting this vulnerability could allow an attacker to cause a service failure or increase their privileges...

GSD-2023-1002183 io_uring/io-wq: only free worker if it was allocated for creation

iouring/io-wq: only free worker if it was allocated for creation 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 v5.10.164 by commit...

GSD-2023-1002182 io_uring: lock overflowing for IOPOLL

iouring: lock overflowing for IOPOLL 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 v5.10.165 by commit de77faee280163ff03b7ab64af6c9d779a43d4c...