kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c

A use-after-free flaw was found in the way the Linux kernel's filesystem subsystem handled a race condition in the chrdevopen function. This flaw allows a privileged local user to starve the resources, causing a denial of service or potentially escalating their privileges. The highest threat from...

kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open

There is a use-after-free problem seen due to a race condition between the release of ptpclock and cdev while resource deallocation. When a high privileged process allocates a ptp device file like /dev/ptpX and voluntarily goes to sleep. During this time if the underlying device is removed, it ca...

kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open

There is a use-after-free problem seen due to a race condition between the release of ptpclock and cdev while resource deallocation. When a high privileged process allocates a ptp device file like /dev/ptpX and voluntarily goes to sleep. During this time if the underlying device is removed, it ca...

Kernel security update: Virtuozzo ReadyKernel patch 113.10 for Virtuozzo Hybrid Server 7.0

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to the kernels 3.10.0-1062.12.1.vz7.131.10 Virtuozzo Hybrid Server 7.0.13, 3.10.0-1127.8.2.vz7.151.14 Virtuozzo Hybrid Server 7.0.14. Vulnerability id: CVE-2020-0305...

Microsoft Azure Sphere mtd character device driver privilege escalation vulnerability

Summary An arbitrary flash write vulnerability exists in the mtd character device driver of Microsoft Azure Sphere 20.06. A specially crafted ioctl can bypass file permissions and allow writes to flash by unauthorized users. An attacker can issue a MEMWRITE ioctl to trigger this vulnerability...

Android Resource Management Error Vulnerability (CNVD-2020-44616)

Android is a Linux-based open source operating system from Google and the Open Handheld Alliance OHA. A resource management error vulnerability exists in the cdevget of the chardev.c file in Android. An attacker can exploit this vulnerability to elevate privileges...

Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2020-5710)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5710 advisory. - USB: adutux: fix use-after-free on disconnect Johan Hovold Orabug: 31240297 CVE-2019-19523 - USB: core: Fix races in character device registratio...

kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open

There is a use-after-free problem seen due to a race condition between the release of ptpclock and cdev while resource deallocation. When a high privileged process allocates a ptp device file like /dev/ptpX and voluntarily goes to sleep. During this time if the underlying device is removed, it ca...

kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open

There is a use-after-free problem seen due to a race condition between the release of ptpclock and cdev while resource deallocation. When a high privileged process allocates a ptp device file like /dev/ptpX and voluntarily goes to sleep. During this time if the underlying device is removed, it ca...

Arbitrary Code Execution

kernel is vulnerable to arbitrary code execution. The vulnerability exists as a flaw in the Omnikey CardMan 4040 driver that allowed a local user to execute arbitrary code with kernel privileges. In order to exploit this issue, the Omnikey CardMan 4040 PCMCIA card must be present and the local us...

Vulnerability of the rpmsg_eptdev_write_iter() function (driver/rpmsg/rpmsg_char.c) in the Linux kernel, allowing a hacker to cause a service failure

The vulnerability of the rpmsgeptdevwriteiter function driver/rpmsg/rpmsgchar.c in the Linux kernel involves uncontrolled resource consumption. Exploiting this vulnerability could allow a malicious actor to cause service failures remotely...

Race condition

In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9. This affects drivers/usb/core/file.c...

CVE-2019-19537

In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9. This affects drivers/usb/core/file.c...

CVE-2019-19537

CVE-2019-19537 is a race condition in the Linux kernel USB stack (drivers/usb/core/file.c and related USB character device layer) triggered by a malicious USB device. The vulnerability could allow a local attacker to cause a denial of service by making the kernel stop responding. Public reference...

Android maxdsm Driver Kernel Information Disclosure Vulnerability

Exploit for Android platform in category local exploits Android: Kernel information disclosure in "maxdsmread" The "maxdsm" driver exposes several character devices which can be used to control and calibrate the device. One such device is the "control device", exposed under: "/dev/dsmctrldev". Th...

Debian DSA-3616-1 : linux - security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2014-9904 It was discovered that the sndcompresscheckinput function used in the ALSA subsystem does not properly check for an integer overflow,...

[SECURITY] [DSA 3616-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3616-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 04, 2016 https://www.debian.org/security/faq -...

[SECURITY] [DSA 3616-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3616-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 04, 2016 https://www.debian.org/security/faq -...

CVE-2016-1233

An unspecified udev rule in the Debian fuse package in jessie before 2.9.3-15+deb8u2, in stretch before 2.9.5-1, and in sid before 2.9.5-1 sets world-writable permissions for the /dev/cuse character device, which allows local users to gain privileges via a character device in /dev, related to an...

CVE-2016-1233

An unspecified udev rule in the Debian fuse package in jessie before 2.9.3-15+deb8u2, in stretch before 2.9.5-1, and in sid before 2.9.5-1 sets world-writable permissions for the /dev/cuse character device, which allows local users to gain privileges via a character device in /dev, related to an...