Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hwmon: coretemp Check for null before removing sysfsattrs. If coretempaddcore encounters an error, pdata-coredataindx is already NULL and has been freed. Do not pass this value to sysfsremovegroup, as it will cause a crash in...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisysfs: Fixed an issue where the function deviceadd was called multiple times. The function deviceadd should not be called multiple times, as stated in its documentation: “Do not call this routine or deviceregister...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ocfs2: fixed a memory leak in ocfs2stackglueinit The ocfs2tableheader should be freed in ocfs2stackglueinit if ocfs2sysfsinit fails; otherwise, kmemleak will report a memory leak. BUG: Memory leak Unreferenced object...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: amdgpu/pm: prevented array underflow in vega20odneditdpmtable In the PPODEDITVDDCCURVE case, the “inputindex” variable is capped at 2, but its negative values are not checked, resulting in an out-of-bounds read. This value comes...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: catch commit test ctx allocation failure The patch series “mm/damon/sysfs: fix commit test damonctx deallocation” addresses this issue. The DAMON sysfs interface dynamically allocates and uses a damonctx object to...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net-sysfs: added a check to ensure netdevice is present before using speedshow. When disabling the netdevice or during system shutdown, a panic may occur when accessing the sysfs path, because the device has already been removed...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: thermal/core: A memory leak was fixed in thermalcoolingdeviceregister. I encountered a memory leak during the fault injection test. The unreferenced object is: 0xffff888010080000 size: 264312. The details of the memory leak are a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: firmwareloader: A memory leak was fixed in the firmware upload process. In the case of firmware-upload, an instance of the struct fwUpload structure is allocated in firmwareUploadRegister. This memory must be freed in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ubifs: A memory leak was fixed in ubifssysfsinit. When using insmod ubifs.ko, a kmemleak was reported as follows: Unreferenced object: 0xffff88817fb1a780 size 8 Source: comm "insmod", pid 25265, jiffies 4295239702 age 100.130s He...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: extcon: The extcon device is modified to be created after the driver data is set. Currently, someone can invoke sysfs functions such as stateshow intermittently before devsetdrvdata is performed. This can lead to a kernel Oops...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: vduse: Fixed NULL pointer dereferencing during sysfs access. The control device does not have a drvdata field. Therefore, a NULL pointer dereferencing will occur when accessing the msgtimeout attribute of the control device via...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: SUNRPC: Fixed null-ptr-deref when xps sysfs alloc fails There is a null-ptr-deref when xps sysfs alloc fails: BUG: KASAN: null-ptr-deref in sysfsdocreatelinksd+0x40/0xd0 Reading a 8-byte value at address 0000000000000030 by ta...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Firmware: dmi-sysfs: Fixed the null-ptr-deref issue in dmisysfsregisterhandle. KASAN reported a null-ptr-deref error: KASAN: Null-ptr-deref in the range 0x0000000000000008-0x000000000000000f. CPU: 0; PID: 1373; Comm: modprobe...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: md: initbioset in mddevinit. IO operations may be required before mdrun, such as updating metadata after writing to sysfs. Without bioset, this triggers a NULL pointer dereference, as shown below: BUG: NULL pointer dereference in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Fix data race in CPU latency PM QoS request handling The cpulatencyqosadd/remove/updaterequest interfaces lack internal synchronization by design, requiring the caller to ensure thread safety. The current...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Counter: rz-mtu3-cnt: prevents the counter from being toggled multiple times The runtime PM counter is incremented/decremented each time the sysfs enable file is written to. If a user writes 0 to the sysfs enable file multiple...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fixed the issue of parameter context leaks during the damonsysfsnewtestctx function failure. Patches in the series “mm/damon/sysfs: fixed memory leaks and NULL pointer dereferencing issues”, version 4. DAMONSYSFS...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: The code checks contexts-nr before accessing contextsarr0. Multiple sysfs command paths dereference contextsarr0 without first verifying that kdamond-contexts-nr == 1. A user can set nrcontexts to 0 via sysfs whil...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: cxl/region: Fixed leakage in constructregion. The first call to sysfsupdategroup requires explicitly freeing the resource, as it is too early for cxlregioniomemrelease to be called...

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

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: create sysfs nodes as driver’s default device attribute group The sysfs nodes related to the DisplayPort driver may be available to the user space before typecaltmodesetdrvdata completes in...