CVE-2024-46762

CVE-2024-46762 describes a Linux kernel issue in the Xen driver support (privcmd) where simultaneous calls to privcmd_irqfd_assign() and privcmd_irqfd_deassign() could lead to use-after-free of a kirqfd instance, potentially causing a kernel oops. The root cause is a lack of proper synchronizatio...

CVE-2024-46762 xen: privcmd: Fix possible access to a freed kirqfd instance

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simultaneous ioctl calls to privcmdirqfdassign and privcmdirqfddeassign. If that happens, it is possible that a kirqfd created and added to the...

SUSE CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-;wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as ...

AZL-48789 CVE-2024-44957 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

DEBIAN-CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

UBUNTU-CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957

CVE-2024-44957 is a Linux kernel issue affecting the Xen privcmd path, where irqfds handling could deadlock if mutexes were used under spin_lock_irqsave. The root cause is switching the synchronization primitive for irqfd wakeups from a mutex to a spinlock, due to EPOLLHUP being delivered to irqf...

CVE-2024-44957 xen: privcmd: Switch from mutex to spinlock for irqfds

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957 xen: privcmd: Switch from mutex to spinlock for irqfds

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

CVE-2024-44957 xen: privcmd: Switch from mutex to spinlock for irqfds

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfdwakeup gets EPOLLHUP, when it is called by eventfdrelease by way of wakeuppoll&ctx-wqh, EPOLLHUP, which gets called under spinlockirqsave. We can't use a mutex here as i...

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...

PT-2024-32177

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.52 Description The issue is related to the Linux kernel, specifically the xen: privcmd component. It allows for possible access to a freed kirqfd instance due to simultaneous ioctl calls to privcmd irqfd assi...

GSD-2023-1001192 xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()

xen/privcmd: Fix a possible warning in privcmdioctlmmapresource 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 v5.15.86 by commit...

PT-2023-33896 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.16 Description: A potential issue exists in the privcmd ioctl mmap resource function. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel versions prior to...

GSD-2022-1005738 xen/privcmd: fix error exit of privcmd_ioctl_dm_op()

xen/privcmd: fix error exit of privcmdioctldmop 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 v5.10.140 by commit...

GSD-2022-1005433 xen/privcmd: fix error exit of privcmd_ioctl_dm_op()

xen/privcmd: fix error exit of privcmdioctldmop 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 v5.15.64 by commit...

GSD-2022-1005024 xen/privcmd: fix error exit of privcmd_ioctl_dm_op()

xen/privcmd: fix error exit of privcmdioctldmop 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 v5.19.6 by commit...