CVE-2026-93827 virtio-fs: avoid double-free on failed queue setup

In the Linux kernel, the following vulnerability has been resolved: virtio-fs: avoid double-free on failed queue setup virtiofssetupvqs allocates fs-vqs and fs-mqmap before calling virtiofindvqs. If virtiofindvqs fails, the error path frees both pointers and returns an error to virtiofsprobe...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

A issue was discovered in lib/kobject.c in the Linux kernel before version 6.2.3. With root access, an attacker can trigger a race condition that results in an out-of-bounds write of the fillkobjpath variable...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: Do not perform operations on net devices that are not yet registered. There is a short period between when a net device starts to be unregistered and when it is actually removed from the list of available devices. During...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: cpufreq: The completion function is called before kobjectinitandadd. In cpufreqpolicyalloc, the uninitialized completion function is called in cpufreqsysfsrelease when kobjectinitandadd fails. This will cause a crash, such as a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drivers: dio: A possible memory leak has been fixed in dioinit. If deviceregister returns an error, the dev object and its associated name need to be freed. Add a release function, and then call putdevice in the error handling...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ptp: A possible memory leak has been fixed in ptpclockregister. I encountered a memory leak during the fault injection test as follows: Unreferenced object: 0xffff88800906c618 size 8 Command: comm "i2c-idt82p33931", PID 4421,...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: fixed a potential memory leak in “addwidgetnode”. Since “kobjectadd” may allocate memory for “kobject-name” when returning an error. And in this function, if the call to “kobjectadd” fails, the memory is not freed...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Block layer: Do not delete a queue kobject before its child kobjects are deleted. Kobjects are not supposed to be deleted before their child kobjects are deleted. Apparently, this is usually harmless; however, a warning will be...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cpufreq: schedutil: Use kobject release method to free sugovtunables The struct sugovtunables is protected by the kobject, so we cannot free it directly. Otherwise, we would receive a call trace like this: ODEBUG: free active...

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

In the Linux kernel, the following vulnerability has been resolved: blk-mq: Check the kobject creation status in sysfs before deleting it in blkmqunregisterhctx. In the function blkmqupdatenrHWqueues, the return value of blkmqsysfsregisterhctxs is not checked. If the creation of hctxs in sysfs...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dax: Fixed the issue where daxmappingrelease was called after the free operation. A test using CONFIGDEBUGKOBJECTRELEASE to remove a device-related dax region e.g., using modprobe -r daxhmem results in the following output:...

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

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: fixed a possible memory leak in ibmebusbusinit. If deviceregister returns an error in ibmebusbusinit, the name of the kobject allocated by devsetname, which is called in deviceadd, is leaked. According to the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Class: Fixed a possible memory leak in classregister. If classaddgroups returns an error, the cp-subsys needs to be unregistered, and the cp needs to be freed. We cannot call ksetunregister here, because the cls will be freed in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: EDAC/mc: Fixed the error path ordering in edacmcalloc. When the mci-pvtinfo allocation in edacmcalloc fails, the error path will call putdevice, which will ultimately call the device’s release function. However, the initializatio...

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: Module: Ensure that kobjectput is safe for the module type kobjects. In lookuporcreatemodulekobject, an internal kobject is created using modulektype. Therefore, calling kobjectput during error handling causes an attempt to use a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Macintosh: A possible memory leak in macioaddonedevice has been fixed. After committing 1fa5ae857bb1 “driver core: get rid of struct device’s busid string array”, the name of the device is allocated dynamically. This memory...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Driver Core: Fixed a resource leak in deviceadd. When kobjectadd fails in deviceadd, it will call cleanupgluedir to free resources. However, in kobjectadd, dev-kobj.parent has been set to NULL. This will cause a resource leak. Th...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Drivers: hv: vmbus – Fixed a memory leak in vmbusaddchannelkobj. kobjectinitandadd takes a reference even when it fails. According to the documentation for kobjectinitandadd: If this function returns an error, kobjectput must ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cpufreq: The governor parameter is set to fix double-free in cpufreqdbsgovernorinit. When kobjectinitandadd fails, cpufreqdbsgovernorinit calls kobjectput&dbsdata-attrset.kobj. The callback function for releasing the kobject,...

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: pps: Fixed a use-after-free On a board running with ntpd and gpsd, I’m encountering a consistent use-after-free in sysexit from gpsd during reboots: pps pps1: Removed ----------- - Cut here----------- kobject: "null"...