CVE-2024-47744 KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

Linux kernel 安全漏洞

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 the fuse file system failing to use exclusive locks when FUSEICACHEIOMODE is set...

Linux kernel 安全漏洞

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 Linux kernel that stems from the sockmap module not properly handling soft locks in the sockhashfree function...

Linux kernel 安全漏洞

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 an issue with access to uninitialized locks in the ext4 file system...

kernel: filelock: Remove locks reliably when fcntl/close race is detected

In the Linux kernel, the following vulnerability has been resolved: filelock: Remove locks reliably when fcntl/close race is detected When fcntlsetlk races with close, it removes the created lock with dolockfilewait. However, LSMs can allow the first dolockfilewait that created the lock while...

kernel: NFSv4: Don't hold the layoutget locks across multiple RPC calls

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Don't hold the layoutget locks across multiple RPC calls When doing layoutget as part of the open compound, we have to be careful to release the layout locks before we can call any further RPC calls, such as setattr. The...

kernel: filelock: Remove locks reliably when fcntl/close race is detected

In the Linux kernel, the following vulnerability has been resolved: filelock: Remove locks reliably when fcntl/close race is detected When fcntlsetlk races with close, it removes the created lock with dolockfilewait. However, LSMs can allow the first dolockfilewait that created the lock while...

The vulnerability of the fcntl_setlk() function in the Linux operating system allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the fcntlsetlk function in the fs/locks.c module of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected...

Linux kernel 安全漏洞

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 the improper use of RCU locks...

Unspecified vulnerability in Linux kernel (CNVD-2024-39299)

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 the bonding component incorrectly using spinlocks instead of mutual exclusion locks to protect the...

OESA-2024-2126 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Prevent use after free on completion memory On driver unload any pending descriptors are flushed at the time the interrupt is freed:...

SUSE CVE-2024-46681

In the Linux kernel, the following vulnerability has been resolved: pktgen: use cpusreadlock in pgnetinit I have seen the WARNONsmpprocessorid != cpu firing in pktgenthreadworker during tests. We must use cpusreadlock/cpusreadunlock around the foreachonlinecpucpu loop. While we are at it use...

Linux kernel 安全漏洞

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 a failure to properly handle mutually exclusive locks, potentially leading to data contention...

DEBIAN-CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024

CVE-2024-45024 relates to a Linux kernel Hugetlb PT locking issue fixed by aligning huge page table locking with core-mm PT walkers. The root cause: during GUP’s shared page-table walking, hugetlb folios spanning multiple PTEs could be locked using PTE table locks (pte_offset_map_lock) while core...

Unspecified vulnerability in Linux kernel (CNVD-2024-39520)

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 a deadlock issue in the xen:privcmd component that may result from the use of mutually exclusive locks. No...

kernel: gfs2: Fix potential glock use-after-free on unmount

A vulnerability was found in the Linux kernel within the gfs2 component, where potential use-after-free issues could occur on unmount. When DLM lockspaces are released with remaining locks, callbacks for asynchronous lock contention may access freed objects, causing unexpected behavior...

FreeBSD-SA-24:14.umtx

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-24:14.umtx Security Advisory The FreeBSD Project Topic: umtx Kernel panic or Use-After-Free Category: core Module: kern Announced: 2024-09-04 Credits: Synacktiv...

Linux kernel 安全漏洞

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 a deadlock issue in the xen:privcmd component that may result from the use of mutually exclusive locks. No...

kernel: gfs2: Fix potential glock use-after-free on unmount

A vulnerability was found in the Linux kernel within the gfs2 component, where potential use-after-free issues could occur on unmount. When DLM lockspaces are released with remaining locks, callbacks for asynchronous lock contention may access freed objects, causing unexpected behavior...