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: drbd: Added krefget to the handlewriteconflicts function. With “two-primaries” enabled, DRBD attempts to detect “concurrent” writes and handle write conflicts. This ensures that even if you write to the same sector simultaneously...

Astra Linux – Vulnerability in Parsec

The vulnerability of the PARSEC security subsystem is related to the improper release of memory before deleting the last reference. Exploiting this vulnerability allows an attacker to cause a service failure...

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

In the Linux kernel, the following vulnerability has been resolved: ceph: The incorrect reference check of Fw was removed when marking pages as dirty. When performing direct IO reads, the system will also attempt to mark pages as dirty. However, for the read path, it does not hold the Fw caps, an...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/dpmst: Ensure that the mstprimary pointer is valid in drmdpmsthandleupreq. While receiving an MST up request message from one thread in drmdpmsthandleupreq, the MST topology might be removed by another thread via...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: It was fixed that link down work might be scheduled before lgr is freed, but it would execute after lgr is freed, which could lead to a crash. Therefore, it is necessary to hold a reference before scheduling the link dow...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cachefiles: A NULL pointer dereference issue in object-file has been fixed. Currently, there is a NULL pointer dereference problem in ondemand-mode. The root cause is that the allocated file descriptor fd and the lifetime of...

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: xen: Fixed the issue where resources were not properly released in xenbusdevprobe This patch addresses a issue with the xenbusdevprobe function. In the xenbusdevprobe function, within the if err branch at line 313, the program...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In TLS communication, there was an issue where we took a reference to psock after locking the RX lock, in order to avoid leaks. At the beginning of the tlsswrecvmsg function, we take a reference to psock, and then call...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: hwrng: amd – Fixed the PCI device reference count leak. foreachpcidev is implemented through pcigetdevice. The comment for pcigetdevice states that it will increase the reference count of the returned pcidev, and also decrease...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: espintcp: The caching of the encap socket has been removed to avoid reference leaks. The current scheme for caching the encap socket can lead to reference leaks when trying to delete the netns. The reference chain is: xfrmstate -...

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: xenbus: Use kref to track the lifetime of requests. Marek reported seeing a NULL pointer fault in the xenbusthread call stack: BUG: NULL pointer dereferencing in the kernel; address: 0000000000000000 RIP:...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: PID: Taking a reference when initializing cadpid During boot, kernelinitfreeable initializes cadpid to the struct pid of the init task. Later, we may change cadpid via sysctl. When this happens, procdocadpid will increment the...

Astra Linux – Vulnerability in Wayland

An internal reference count is maintained on the buffer pool; this count increments every time a new buffer is created from the pool. The reference count is stored as an integer. On LP64 systems, this can lead to an overflow if the client creates a large number of wlshm buffer objects, or if it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd934x: Added ofnodeput before wcdb934xcodecparsedata. The devicenode pointer is returned by ofparsephandle with a refcount incremented. We should use ofnodeput on it after the operation is completed. This is simil...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: - For soc: bcm: brcmstb: pm: pm-arm – A refcount leak in brcmstbpmprobe was fixed. - In the function offindmatchingnode, a node pointer is returned with a refcount incremented. We should use ofnodeput on it when there is no...

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: dmaengine: lpc18xx-dmamux: fix device leak on route allocation Make sure to remove the reference that was used when accessing the DMA mux platform device during route allocation...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-pci: A possible memory leak caused by the missing pcidevput has been fixed. pcigetdevice will increase the reference count of the returned pcidev. We need to use pcidev PUT to decrease the reference count before amdpro...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ceph: Fixed inode reference leakage in cephgetsnapdir The cephgetinode function will search for or insert a new inode into the hash for the given vino, and return a reference to it. If new is non-NULL, its reference is consumed. ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fixed the incorrect order of resource deallocation. When attempting to destroy a QP or CQ, we first reduce the reference count and potentially free the memory regions allocated for the object. Then, we request the devic...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: properly dropping the USB interface reference when disconnected When the device is disconnected from the driver, there is a “dangling” reference count on the USB interface, which was acquired during the probe callback...