Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915: Fixed potential context UAFs. The gemcontextregister function makes the context visible to user space, and a separate thread can trigger the I915GEMCONTEXTDESTROY ioctl command. Therefore, we need to ensure that...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD After i915vmapinww is completed, a synchronous variant of dmafenceworkcommit is called. When pinning a VMA to GGTT address space on a Cherry View family processor...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/ttm: fixed handling of CCS Crucible + recent Mesa sometimes causes the following issue: GEMBUGONnumccsblks NUMCCSBLKSPERXFER It seems that this issue can also be triggered with gemlmemswapping, if we modify the tests ...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gt: Fixed a potential UAF issue by revoking the fence registers. CI has been sporadically reporting the following issue triggered by igt@i915selftest@live@hangcheck on ADL-P and similar machines: 414.049203 i915:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Makes the DPT object unshrinkable. In some scenarios, the DPT object is shrunk, but the actual framebuffer does not undergo any shrinkage. As a result, the DPT object remains in the DPT’s vm-boundlist. Then, an...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gem: The i915gemcontext link is now moved under ref protection. i915perf assumes that it can use the i915gemcontext reference to protect its i915-gem.contexts.list iteration. However, this requires that we do not remo...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fixed a race condition UAF in i915perfaddconfigioctl. Userspace may attempt to race the creation of the oaconfig object with config remove, resulting in a use-after-free if we dereference the object after unlocking the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: The issue of NULL pointer dereferencing was fixed by checking newcrtcstate. intelatomicgetnewcrtcstate may return NULL, unless the crtc state was obtained previously using intelatomicgetcrtcstate. Therefore, we must che...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gvt: fixed the issue where vGPU debugfs was cleaned up during the remove operation. Check carefully whether the root debugfs is available when destroying the vGPU. For example, in the remove operation, the DRM minor’s...

Astra Linux - уязвимость в linux-5.10, linux

An incorrect TLB flush issue was detected in the Linux kernel’s GPU i915 kernel driver. This flaw may lead to random memory corruption or data leaks. It could also allow a local user to crash the system or escalate their privileges on the system...

Astra Linux - уязвимость в linux-5.10

Improper restriction of operations within the bounds of a memory buffer in some IntelR i915 Graphics drivers for Linux before the kernel version 6.2.10 may allow an authenticated user to potentially enable privilege escalation via local access...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fixed the potential double-free of the bit17 bitmask. A userspace environment where multiple threads compete to set the tiling to I915TILINGNONE could lead to a double-free of the bit17 bitmask. Or, conversely, memory...

Astra Linux - уязвимость в linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: The zero-initialize of the eb.vma array in i915gemdoexecbuffer was corrected. The eb.vma array is initialized with values of 0 when the eb structure is first set up. Specifically, this sets the eb-vmai.vma pointers ...

Astra Linux - уязвимость в linux-5.15

In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: Added a check for the encoder in intelhdcpgetcapability. Sometimes during hotplug scenarios or suspend/resume scenarios, the encoder may not be initialized properly. To prevent null pointer dereferencing in the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: added a missing boundary check in vmaccess A missing bounds check in vmaccess can lead to an out-of-bounds read or write in the adjacent memory area. This occurs because the len attribute is not validated before the...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix null pointer dereference The Asus Chromebook CX550 crashes during boot with the v5.17-rc1 kernel. The root cause is a null pointer dereference in the tglgetbwinfo function in drivers/gpu/drm/i915/display/intelbw.c...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Avoid potential “vm use-after-free” situations. By adding the virtual machine to the vmxa table, it becomes visible to user space. This could potentially cause user space to attempt to close the virtual machine at the...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fixed the potential overflow of the shmem scatterlist length. When a scatterlists table of a GEM shmem object with a size of 4 GB or more is populated with pages allocated from the folio format, the .length attribute of...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have 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 a...

Security update provided in Brocade ASCG3.4.0b Base OS (OVA Deployment) for Rocky Linux Kernel

Security update provided in Brocade ASCG3.4.0b Base OS OVA Deployment for Rocky Linux Kernel CVE-2022-50673 - Linux Kernel 'ext4' Vulnerable to Use-After-Free via Improper Error Handling in 'ext4orphancleanup' CVE-2022-50865 - Linux Kernel Vulnerable to Signed Integer Overflow via Backlog Limit...