Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

Closing an event channel in the Linux kernel can lead to a deadlock. This occurs when the closure operation is performed in parallel with an unrelated Xen console action, and the handling of a Xen console interrupt occurs in a unprivileged guest. The closure of an event channel is triggered, for...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel. A deadlock occurs when multiple session setup requests are sent simultaneously, which may lead to a denial of service...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Do not hold the nilock lock when calling truncatesetsize. syzbot reports a hung task during the call to douseraddrfault 1. This occurs because there is a silent deadlock between the PGlocked bit and the nilock lock. Sin...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: afbluetooth: Fixed deadlock issue Attempting to use socklock on .recvmsg may cause a deadlock as shown below. Therefore, instead of using socksock, use skreceivequeue.lock on btsockioctl to avoid UAF: INFO: Task...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Reverting “drm/amd: flush any delayed gfxoff on suspend entry” The commit ab4750332dbe “drm/amdgpu/sdma5.2: add begin/enduse ring callbacks” caused GFXOFF control to be used more heavily, and the codepath that was removed from...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rcv: kexec: Avoid deadlock in the kexec crash path. If the kexec crash code is called in the interrupt context, the machinekexecmaskinterrupts function will trigger a deadlock while trying to acquire the irqdesc spinlock...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed a deadlock that occurred when cloning inline extents and using qgroups. There are a few exceptional cases where cloning an inline extent requires copying the inline extent data into a page of the destination inode...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: exfat: fixed a potential deadlock in exfatgetdentryset When accessing a file with more entries than ESMAXENTRYNUM, the bh-array is allocated in exfatgetdentryset. The issue arises from the fact that the bh-array is allocated usin...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb3: Fixed the potential deadlock due to lock ordering in the cifssyncmidresult function. Coverity identified that the cifssyncmidresult function could lead to a deadlock. “Thread deadlock ORDERREVERSAL lockorder: Calling spinlo...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Driver Core: Fixed a potential deadlock in driverattach. In the driverattach function, there is also an AA deadlock issue, similar to the commit b232b02bf3c2 "Driver Core: Fix Deadlock in deviceattach". The stack trace is as...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: rt2x00 – The beacon queue is restarted when a hardware reset occurs. When a hardware reset is triggered, all registers are reset, causing all queues to be stopped in the hardware interface. However, mac80211 does not...

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: KVM: Always flush the async PF workqueue when a vCPU is being destroyed. Whenever a vCPU clears its completion queue, i.e., when a VM and all its vCPUs are being destroyed, the async PF workqueue must always be flushed. KVM must...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Remove WQMEMRECLAIM from storvscerrorwq The storvscerrorwq workqueue should not be marked as WQMEMRECLAIM, as it does not need to retain the status of forward progress under memory pressure. Marking this workqueue ...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: dm thin: Fixed the ABBA deadlock between shrinkslab and dmpoolabortmetadata. The following concurrent processes: P1drop cache P2kworker dropcachessysctlhandler dropslab shrinkslab downread&shrinkerrwsem - LOCK A doshrinkslab...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: clk: Obtain runtime PM information before traversing the tree to retrieve clksummary. Similar to the previous commit, we should ensure that all devices are resumed during runtime before printing the clksummary through debugfs...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5: Fixed a deadlock between the devlink lock and esw-wq. esw-workqueue executes eswfunctionschangedeventhandler - eswvfschangedeventhandler acquires the devlink lock. .eswitchmodeset acquires the devlink lock in...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: drm: Do not accidentally unreference the same framebuffer multiple times due to deadlock handling. If a deadlock occurs after the fb lookup in drmmodepageflipioctl, we proceed to unreference the fb and then retry the entire proce...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fixed deadlock issues with SRQ async events. The xalock function for the SRQ table may be required in AEQ. Use xastoreirq/xaeraseirq to avoid deadlock...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drivers: staging: rtl8723bs: Fixed locking issues in rtwjointimeouthandler. The commit number 041879b12ddb states: “drivers: staging: rtl8192bs: Fixed deadlock in rtwjoinbsseventprehandle. In addition, rtwjointimeouthandler wa...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed a deadlock or deadcode issue caused by misuse of dget. The lock order between denty and its parent is incorrect; we should always ensure that the parent gets the lock first. However, since this deadcode is never used,...