Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: auxdisplay: line-display: fixed NULL dereferencing in linedisprelease. linedisprelease currently retrieves the enclosing struct linedisp via tolinedisp. This retrieval depends on the attachment list, but the attachment may have...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed the drmedid leak in amdgpudm WHAT When a sink is connected, the connector-drmedid was overwritten without freeing the previous allocation, resulting in a memory leak upon resuming operation. HOW Free the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915/vrr: Configure VRR timings after enabling TRANSDDIFUNCCTL It appears that the ICL may hang when using an MCE if we set TRANSVRRVMAX/FLIPLINE before enabling TRANSDDIFUNCCTL. Personally, I was only able to reproduce such ...

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, Linux

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: clk-rcg2: Update the logic to calculate the D value for RCG. The display pixel clock has a requirement on certain newer platforms to support M/N as 2/3, and the final D value calculated results in underflow errors. As...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/imx: Fixed a memory leak in imxpdconnectorgetmodes. Avoid leaking the display mode variable if ofgetdrmdisplaymode fails. Addressing-Coverity-ID: 1443943 "Resource leak"...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: drm/virtio: fixed a NULL pointer dereference in virtiogpuconngetmodes. drmcvtmode may return NULL, and we should check for this. This bug was discovered by syzkaller: FAULTINJECTION stacktrace: 168.567394 FAULTINJECTION: forci...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/disp/dpu1: Avoid clearing hardware interrupts if hwintr is null during drm uninit. If the edp modeset init fails due to the panel not being ready, and the probe is deferred during drm bind, avoid clearing IRQs and...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A NULL pointer dereference occurred in amdgpudmconnectoraddcommonmodes. In amdgpudmconnectoraddcommonmodes, amdgpudmcreatecommonmode assigns mode to mode, and mode is directly passed to drmmodeprobedadd...

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: 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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: it6505: Initialize AUX channel in it6505i2cprobe During device booting, the HPD interrupt might be triggered before the DRM subsystem registers it6505 as a DRM bridge. In such cases, the driver attempts to access the...

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 found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm: amd: display: Fix memory leakage This commit addresses the memory leakage issue in the dcconstructctx function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed overlapping copies within dmlcoremodeprogramming REASON &modelib-mp.Watermark and &locals-Watermark are the same address. Using memcpy may lead to unexpected behavior. SOLUTION memmove should be used instea...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: Dropping aux devices along with the DP controller Using devres to depopulate the aux bus ensured that upon a probe delay, the EDP panel device would be destroyed and recreated upon the next attempt. However, the struc...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added sanity checks for drmedidraw. When EDID is retrieved via drmedidraw, it does not guarantee that the caller’s desired EDID bytes will be returned. It may either return NULL leading to an error, or return byt...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid HDCP over-reading and corruption. Instead of reading the desired 5 bytes from the actual target field, the code was reading 8 bytes. This could result in a corrupted value if the last 3 bytes were non-zero...

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 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: Check whether hwpp is valid in dpuencoderhelperphyscleanup. The commit 8b45a26f2ba9 “drm/msm/dpu: Reserve CDM blocks for writeback in case of YUV output” introduced a warning about another conditional block in...