Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: “interconnect”: Do not access reqlist while it is being manipulated. The icclock mutex was split into separate icclock and iccbwlock mutexes in 1 to avoid lockdep splats. However, this did not adequately protect access to...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw occurs during the processing of SMB2SESSIONSETUP and SMB2LOGOFF commands. The issue arises due to the lack of proper locking when performing operations on an object. An...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: USB: core: Prevent nested device-reset calls Automatic kernel fuzzing revealed a recursive locking violation in usb-storage. ============================================ WARNING: Possible recursive locking detected 5.18.0 3 No...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of the pppol2tp socket is passed as a file descriptor of the UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation can b...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ocfs2: dlmfs: Fixed error handling for userdlmdestroyLock. When userdlmdestroyLock fails, it does not clean up the flags it set before exiting. For the USERLOCKINTEARDOWN condition, if this function fails because the lock is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: USB: dummy-hcd: Fixed locking/synchronization errors Syzbot testing was able to cause an addressing exception and a crash in the usbgadgetudcreset routine in drivers/usb/gadgets/udc/core.c. This occurred because the routine wa...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Sysv: Do not call sbbread with pointerlock held. syzbot reports sleep in atomic context in the SysV filesystem 1. For sbbread, the function is called with rwspinlock held. A bug involving a “deadlock due to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfs4setupreaddir: Insufficient locking for -dparent-d inode dereferencing. Theoretically, this could lead to an oops error due to a race condition, but I don’t believe anyone would actually exploit this vulnerability on real...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: ipset: Fixed issues related to region locking in hash types. The region locking mechanism introduced in v5.6-rc4 included three macros for handling region locks: ahashbucketstart, ahashbucketend which return the sta...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Input: uinput – fixed a circular locking dependency with ff-core A circular locking dependency warning can be triggered reproducibly when using a force-feedback gamepad with uinput for example, playing ELDEN RING under Wine with ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nfc: nci: fixed a circular locking dependency in nciclosedevice. The nciclosedevice function flushes the rxwq and txwq queues while holding the reqlock. This causes a circular locking dependency, as the ncirxwork function...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Fixed sleeping in atomic context due to regmap locking If a device uses the MCP23xxx IO expander to receive IRQs, the following bug can occur: BUG: Sleeping function called from invalid context at...

Astra Linux – Vulnerability in Linux 5.10, Linux

In l2capchanput of l2capcore, there is a potential use after free due to improper locking. This could lead to a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation. Product: Android Versions: Android kernel Android...

Astra Linux – Vulnerability in Linux 5.10, Linux

In bindervmaclose of binder.c, there is a potential exploit after the free function call due to improper locking. This could lead to a local escalation of privileges without the need for additional execution privileges. User interaction is not required for this exploitation. Product: Android...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: megaraidsas: Fix for a potential deadlock. This fix resolves the “possible circular locking dependency detected” warning. CPU0 CPU1 ---- ---- lock&instance-resetmutex; lock&shost-scanmutex; lock&instance-resetmutex;...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: The process of initializing wiphywork before allocating rfkill fails. The issue was reported as a syzbort: an error in cfg80211devfree. When the allocation of rfkill fails, the wiphywork initialization process wil...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw exists in the processing of SMB2SESSIONSETUP commands. The issue arises due to the lack of proper locking when performing operations on an object. An attacker can exploit...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In multiple functions of iouring.c, there is a possibility of kernel memory corruption due to improper locking. This could lead to a local escalation of privileges in the kernel, as execution privileges are required. User interaction is not necessary for exploiting this vulnerability...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: dma: xilinxdpdma: Fixing locking issues There are several places where either chan-lock or chan-vchan.lock was not held. Appropriate locking measures were added. This fixes lockdep warnings such as: 31.077578 ------------ Cut...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: The release path is checked before inode lookup during the ino lookup ioctl operation. During the ino lookup ioctl operation, we may call btrfsiget to obtain an inode reference while we are holding a reference to the...