kernel: drm/amd/display: Fix potential null-deref in dm_resume

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential null-deref in dmresume Why Fixing smatch error: dmresume error: we previously assumed 'aconnector-dclink' could be null How Check if dclink null at the beginning of the loop, so further checks can b...

kernel: drm/amd: fix potential memory leak

A memory leak was found in the Linux kernel's AMD display driver in the clock source initialization logic. When the initialization function encounters an error in its final return path, allocated memory for the clksrc structure is not freed before returning NULL. This results in leaked memory tha...

kernel: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes WHY When PTEBufferSizeInRequests is zero, UBSAN reports the following warning because dmllog2 returns an unexpected negative value: shift exponent 4294966273 is t...

kernel: drm/amd/display: fix FCLK pstate change underflow

A calculation flaw was found in the AMD display driver in the Linux kernel. When UCLK p-state is not supported, FCLK p-state change watermarks are incorrectly calculated using dummy values, potentially causing underflow. This can lead to display issues or system instability during power state...

kernel: drm/amd/display: Fix optc2_configure warning on dcn314

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix optc2configure warning on dcn314 Why dcn314 uses optc2configurecrc that wraps optc1configurecrc + set additional registers not applicable to dcn314. It's not critical but when used leads to warning like:...

kernel: drm: amd: display: Fix memory leakage

A memory leak flaw was found in the Linux kernel's AMD display driver in the display context construction logic. A local user can trigger this issue during AMD GPU initialization when the dcconstructctx function fails to release allocated memory in error paths. This results in permanent memory...

kernel: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes WHY When PTEBufferSizeInRequests is zero, UBSAN reports the following warning because dmllog2 returns an unexpected negative value: shift exponent 4294966273 is t...

kernel: drm/amd: fix potential memory leak

A memory leak was found in the Linux kernel's AMD display driver in the clock source initialization logic. When the initialization function encounters an error in its final return path, allocated memory for the clksrc structure is not freed before returning NULL. This results in leaked memory tha...

PT-2025-41040

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the drm/amd/display module, specifically within the dm resume function. This issue involves a potential null dereference, identified by a smatch error...

PT-2024-14688

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer error in the debugfs of the Linux kernel's drm/amd/display component has been resolved. The issue was caused by not checking if the get subvp en callback exists before...

kernel: drm/amd/display: Check correct bounds for stream encoder instances for DCN303

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check correct bounds for stream encoder instances for DCN303 Why & How engid for DCN303 cannot be more than 1, since we have only two instances of stream encoders. Check the correct boundary condition for engine ...

kernel: drm/amd/display: Check if modulo is 0 before dividing.

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check if modulo is 0 before dividing. How & Why If a value of 0 is read, then this will cause a divide-by-0 panic...

kernel: drm/amd/display: clear optc underflow before turn off odm clock

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: clear optc underflow before turn off odm clock Why After ODM clock off, optc underflow bit will be kept there always and clear not work. We need to clear that before clock off. How Clear that if have when clock o...

PT-2025-26005 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue concerns the Linux kernel, specifically the drm/amd/display component for DCN303. It involves checking the correct bounds for stream encoder instances to prevent potential ou...

kernel: drm/amd/display: clear optc underflow before turn off odm clock

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: clear optc underflow before turn off odm clock Why After ODM clock off, optc underflow bit will be kept there always and clear not work. We need to clear that before clock off. How Clear that if have when clock o...

kernel: drm/amd/display: Check if modulo is 0 before dividing.

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check if modulo is 0 before dividing. How & Why If a value of 0 is read, then this will cause a divide-by-0 panic...

PT-2023-35171 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.90 Description: The issue is related to the calculation of output color space after pixel encoding adjustment in the drm/amd/display component. The actual impact and attack plausibility have not yet been...

PT-2023-34738 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.1.8 Description: The issue is related to the calculation of output color space after pixel encoding adjustment in the drm/amd/display component. The actual impact and attack plausibility have not yet been...

GSD-2023-1000545 drm/amd/display: Use the largest vready_offset in pipe group

drm/amd/display: Use the largest vreadyoffset in pipe group This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.16 by commit...

PT-2023-33668 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.4 Description: A potential memory leak issue has been identified. The actual impact and attack plausibility have not yet been proven. This issue is related to the drm/amd/display component. Recommendations: F...