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 found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Make intelgetcrtcnewencoder less oops-oriented. The purpose of the WARN message was to print something, not to simply report an “oops”. Currently, this exactly happens when we cannot find the Crtc connector in the atomi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Check whether the transferred 2D BO is a shmem BO. The transferred 2D BO must always be a shmem BO. Add a check to prevent NULL dereferencing if the user space passes a VRAM BO...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm: Fixed a potential null-ptr-deref due to drmmmodeconfiginit. drmmmodeconfiginit will call drmmodecreatestandardproperties, and it does not check the return value. When drmmodecreatestandardproperties fails due to allocatio...

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

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed a potential null dereference in dmresume Why To fix the match error: The dmresume error: We previously assumed that ‘aconnector-dclink’ could be null. How Checked whether dclink is null at the beginning of...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: lib/fonts: Fixed undefined behavior in bit shifting for getdefaultfont. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning “calltrace” is as follow...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: mtkdrmcrtc: Added checks for devmkcalloc. Since devmkcalloc may return NULL, the return value needs to be checked to avoid dereferencing a NULL pointer...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: drm/omap: dss: Fixed refcount leak issues In dssinitports and dssuninitports, we should call ofnodeput for the reference returned by ofgraphgetportbyid in the fail path or when it is no longer needed...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fixed stale file descriptors when a usercopy fails. A failed usercopy of the fencerep object will result in a stale entry in the file descriptor table, as putunusedfd will not release that entry. This allows userland ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: lvds: fixed the imbalance in the PM usage counter during power-on. The pmruntimegetsync function will increment the PM usage counter even if it fails. Forgetting to perform the necessary operations could lead to a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fixed a possible null pointer dereferencing issue. In radeonfpnativemode, the return value of drmmodeduplicate is assigned to mode, which could lead to a NULL pointer dereferencing issue upon failure of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when calculating packet sizes. Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could lead to an underflow, causing the value to wrap around t...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validated the box size for the snooped cursor. Invalid user-space DMA surface copies could potentially cause an overflow when copying data from the surface to the snooped image, leading to crashes. To address this...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Install a stub fence into potential unused fence pointers. When using cpu to update page tables, VM update fences are unused. Instead, install a stub fence into these fence pointers, rather than setting them to NULL...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fixed NULL pointer dereferencing crash during unloading. The mxsfb-crtc.funcs may already be NULL when unloading the driver. In such cases, calling mxsfbirqdisable via drmirquninstall from mxsfbunload leads to a NULL...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdkfd: Fixed an illegal memory access In the kfdwaitonevents function, the kfdeventwaiter structure is allocated by alloceventwaiters. However, the event field of the waiter structure is not initialized. When the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/nouveau/kms/nv50-: fixed the file release memory leak. When using singleopen for opening, singlerelease should be called; otherwise, the ‘op’ allocated in singleopen will be leaked...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/devfreq: Fixed the OPP refcnt leak...

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 in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed the logic for disabling/enabling FIFO. Why When switching to another HDMI mode, we inevitably disable/enable the FIFO, causing both HPO and DIG registers to be set at the same time—when only HPO is supposed...