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

In the Linux kernel, the following vulnerability has been resolved: fbdev: sisfb: Fixed strbuf array overflow issue. The values of the variables xres and yres are stored in strbuf. These variables are obtained from strbuf1. The strbuf1 array contains digit characters, and a space if the array...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: In the video: fbdev: arkfb function, the value of screensize is calculated based on user input. If the user provides an incorrect value, the value of screensize may be larger than info-screensize, which may lead to the following...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: s3fb: Check the size of the screen before memsetio In the function s3fbsetpar, the value of ‘screensize’ is calculated based on user input. If the user provides an incorrect value, the value of ‘screensize’ may be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/fbdev-dma: Added shadow buffering for deferred I/O. DMA areas are not necessarily backed by struct page, so we cannot rely on it for deferred I/O. Allocate a shadow buffer for drivers that require deferred I/O and use it a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/fb-helper: Fixed out-of-bounds access issues The memory range was clipped to the size of the screen buffer to avoid out-of-bounds access during the damage handling in fbdev’s deferred I/O operations. fbdev’s deferred I/O c...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Treat the DPT BO as a framebuffer. Currently, i915gemobjectisframebuffer does not treat the BO containing the DPT as a framebuffer itself. This means that the shrinker can evict the DPT BO while leaving the actual F...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tty: Fixed an out-of-bound access to vmalloc in imageblit. This issue occurs when a user-space program calls ioctl FBIOPUTVSCREENINFO, passing the fbvarscreeninfo structure containing only the fields xres, yres, and bitsperpixel...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbpm2fb: Avoid potential divide by zero errors In dofbioctl of fbmem.c, if cmd is FBIOPUTVSCREENINFO, var will be copied from the user. Then, the functions fbsetvar and info-fbops-fbcheckvar will be called, which might...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Video: fbdev: amba-clcd: Fixed refcount leak issues. In clcdfbofinitdisplay, we should call ofnodeput for the references returned by ofgraphgetnextendpoint and ofgraphgetremoteportparent, as these references have increased the...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/client: Fixed a memory leak in drmclienttargetcloned. The dmtmode variable is allocated but never freed within this function. This issue was discovered with the ast driver, but most drivers that use the generic fbdevsetup...

Astra Linux – Vulnerability in Linux 5.10, Linux

The Linux kernel was found vulnerable due to out-of-bounds memory access in the drivers/video/fbdev/sm712fb.c:smtcfbread function. This vulnerability could allow local attackers to cause the kernel to crash...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fixed a bo leak in intelfbboframebufferinit. Added a unreference of “bo” in the error path to prevent the leakage of a “bo” reference. Return 0 on success to clarify the success path. Cherry-picked from commit...

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: fbdev/ep93xx-fb: Do not assign to struct fbinfo.dev. Do not assign the Linux device to struct fbinfo.dev. The call to registerframebuffer initializes the field to the fbdev device. Drivers should not override its value. Fixed a b...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fbmem: Do not delete the mode that is still in use The execution of fbdeletevideomode is not based on the result of the previous fbconmodedeleted. As a result, the mode is directly deleted, regardless of whether it is still in us...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: The check for tiling flags during virtual display handling was bypassed. vkms utilizes the common amdgpu framebuffer creation mechanism. Additionally, since vkms does not support FB modifiers, there is no need to chec...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/gud: fixed NULL fb and crtc dereferences on USB disconnection. When the display disconnects, the function drmatomichelperdisableall is called, which sets both the fb and crtc for a plane to NULL before performing the commit...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: video/aperture: Call sysfbdisable before removing PCI devices Call sysfbdisable from apertureremoveconflictingpcidevices before removing PCI devices. Without this call, simpledrm may still bind to simple-framebuffer devices after...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: arm64: dts: qcom: sdm845-db845c: Marking the splash memory region as reserved. A reserved memory region was added for the framebuffer memory the splash memory region set up by the bootloader. This fix resolves a kernel panic...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Staging: fbtft: Core: Set smemlen before calling fbdeferredioinit. The fbtftframebufferalloc function calls fbdeferredioinit before initializing info-fix.smemlen. This value is set to zero by the framebufferalloc function. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbdev: omap: use threaded IRQ for LCD DMA When using touchscreens and framebuffers, the Nokia 770 easily crashes due to the following issue: BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000 Linked modules include:...