Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed the issue where the unlock operation was not matched correctly for the DMUB HW lock in the HWSS fast path. Why The evaluation of whether we need to use the DMUB HW lock is different from the evaluation of...

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: drm/amd/display: A memory leak was fixed in dmswfini. After destroying dmubsrv, the memory associated with it wasn’t freed, resulting in a memory leak: Unreferenced object: 0xffff896302b45800 size: 1024 Contents: comm...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Implement bounds check for stream encoder creation in DCN301 The “streamenc regs” array is an array of dcn10streamencregisters structures. The array is initialized with four elements, corresponding to the four...

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

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check the pipe offset before setting vblank. The size of pipectx is MAXPIPES; therefore, its index must be checked before accessing the array. This fix addresses an OVERRUN issue reported by Coverity...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed a potential memory leak in DMUB hwinit Why When resuming, we perform DMUB hwinit, which allocates memory using dmresume-dmdmubhwinit-dcdmubsrvcreate-kzalloc. This can lead to a memory leak in suspend/resume...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added a null check in resourcelogpipetopologyupdate REASON When switching from “Extend” to “Second Display Only”, we sometimes call resourcegetotgmasterforstream on an eDP stream, even though the eDP is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed a potential underflow issue for displays with a large vblank period. Why An underflow was observed when using a display with a large vblank period and a low refresh rate. How The calculation of vblanknom wa...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added a NULL check for ‘replay’ in ‘edpsetreplayallowactive’. In the first if statement, we are checking whether ‘replay’ is NULL. However, in the second if statement, we do not check whether ‘replay’ is NULL aga...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Cache streams targeting the link when performing LT automation. REASON The last LT automation update may cause a crash by referencing currentstate and calling dcupdateplanesandstream, which might corrupt...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed NULL dereferencing in debugfs odmcombinesegments When a connector is connected but inactive e.g., disabled by desktop environments, pipectx-streamres.tg will be destroyed. Then, reading odmcombinesegments...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/amd/display: Check the index msgid before reading or writing. WHAT msgid is used as an array index, and it cannot be a negative value. Therefore, it cannot be equal to MODHDCPMESSAGEIDINVALID -1. HOW Check whether msgid is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed the null check on pipectx-planestate in updatedchubpdpp. This issue is similar to commit 6a057072ddd1 “drm/amd/display: Fixed a null pointer dereference on dcn20updatedchubpdpp. It involves the same functio...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null check was added for the setoutputgamma function pointer in the dcn30setoutputtransferfunc function. This change ensures that the setoutputgamma function pointer is not null before dereferencing it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Null checks for adev-dm.dc in amdgpudmfini have been fixed. Since adev-dm.dc in amdgpudmfini might turn out to be NULL before the call to dcenabledmubnotifications, a check is performed beforehand to ensure that...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: The oem i2c adapter is removed after the process is completed. This fix addresses a bug where unbinding the GPU would leave the oem i2c adapter registered, resulting in a null pointer dereference when application...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: The value of UnboundedRequestEnabled was checked. The UnboundedRequestEnabled parameter in CalculateSwathAndDETConfigurationparamsst is a pointer i.e., dmlboolt UnboundedRequestEnabled. Therefore, if...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Clearing the optc underflow before turning off the ODM clock Why After the ODM clock is turned off, the optc underflow bit remains there indefinitely, and clearing it doesn’t work. We need to clear that bit befor...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Adjust the PHY FSM transition to TXEN-to-PLLON for TMDS on DCN35. Why A backport of this change was made for DCN401 to address a issue where turning off the PHY PLL when disabling the TMDS output caused the OTG t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed a NULL pointer dereferencing in dcn401inithw. dcn401inithw assumes that updatebwboundingbox is valid when entering the update path. However, the current condition: !fams2enable && updatebwboundingbox ||...

CVE-2026-43337

A flaw was found in the Linux kernel's drm/amd/display component. This flaw occurs because the dcn401inithw function does not properly validate a callback pointer updatebwboundingbox before use. This can lead to a NULL pointer dereference, potentially causing a system crash or denial of service...