Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from improper handling of cdev devices, and could potentially cause the system to hang...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50282: chardev: fix error handling in cdevdeviceadd bsc1249739. CVE-2022-50630: mm: hugetlb: fix UAF in hugetlbhandleuserfault bsc1254785. CVE-2022-50700: wifi:...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004426)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004426 advisory. There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptpclock and cdev while resource deallocation. When a high...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004157)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004157 advisory. In cdevget of chardev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privilege...

PT-2026-6166

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A flaw exists in the Linux kernel related to the handling of character devices within the uacce module. Specifically, a use-after-free condition can occur during the cleanup process when...

PT-2026-6149

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The lineinfo changed notify function within the gpio character device driver does not free allocated resources during error handling, leading to resource leaks. This occurs on error...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992163)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992163 advisory. In the Linux kernel, the following vulnerability has been resolved: chardev: fix error handling in cdevdeviceadd While doing fault injection test, I got the followin...

PT-2025-49079

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to GPIO character device handling. Specifically, the issue arises when a GPIO change event occurs after the file descriptor associated with the...

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 gpio cdev may incorrectly trigger events during file descriptor release, potentially leading to post-release reu...

SUSE CVE-2022-50568

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fhid: fix fhidg lifetime vs cdev The embedded struct cdev does not have its lifetime correctly tied to the enclosing struct fhidg, so there is a use-after-free if /dev/hidgN is held open while the gadget is deleted...

CVE-2022-50568

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fhid: fix fhidg lifetime vs cdev The embedded struct cdev does not have its lifetime correctly tied to the enclosing struct fhidg, so there is a use-after-free if /dev/hidgN is held open while the gadget is deleted...

EUVD-2021-15904

Malware in sbrugna...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414619)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414619 advisory. An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/vdpa.c has a use-after-free because v-configctx has an invalid value upon re-opening a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986302)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986302 advisory. In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Fix race between the release of rpmsgctrldev and cdev struct rpmsgctrldev contains a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987153)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987153 advisory. In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Fix race between the release of rpmsgctrldev and cdev struct rpmsgctrldev contains a...

UBUNTU-CVE-2022-50421

In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Avoid double destroy of default endpoint The rpmsgdevremove in rpmsgcore is the place for releasing this default endpoint. So need to avoid destroying the default endpoint in rpmsgchrdeveptdevdestroy, this should be...

CVE-2022-50421 rpmsg: char: Avoid double destroy of default endpoint

In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Avoid double destroy of default endpoint The rpmsgdevremove in rpmsgcore is the place for releasing this default endpoint. So need to avoid destroying the default endpoint in rpmsgchrdeveptdevdestroy, this should be...

CVE-2022-50421

The CVE-2022-50421 entry concerns the Linux kernel rpmsg subsystem. The root cause is a double-destroy path for the default rpmsg endpoint: rpmsg_chrdev_eptdev_destroy() may destroy the default endpoint again after rpmsg_dev_remove() releases it, causing refcount underflow and use-after-free. Rep...

CVE-2022-50421 rpmsg: char: Avoid double destroy of default endpoint

In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Avoid double destroy of default endpoint The rpmsgdevremove in rpmsgcore is the place for releasing this default endpoint. So need to avoid destroying the default endpoint in rpmsgchrdeveptdevdestroy, this should be...

CVE-2022-50282

In the Linux kernel, the following vulnerability has been resolved: chardev: fix error handling in cdevdeviceadd While doing fault injection test, I got the following report: ------------ cut here ------------ kobject: 'null' 0000000039956980: is not initialized, yet kobjectput is being called...