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Linux Kernel CVE-2022-50526

HIGH
Out-of-bounds Write (CWE-787)
2025-10-07 416baaa9-dc9f-4396-8d5f-8c081fb06d67
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SUSE
HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 17, 2026 - 20:45 vuln.today
Patch released
Mar 17, 2026 - 20:45 nvd
Patch available
CVE Published
Oct 07, 2025 - 16:15 nvd
HIGH 7.8

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

drm/msm/dp: fix memory corruption with too many bridges

Add the missing sanity check on the bridge counter to avoid corrupting data beyond the fixed-sized bridge array in case there are ever more than eight bridges.

Patchwork: https://patchwork.freedesktop.org/patch/502664/

AnalysisAI

A memory corruption vulnerability exists in the Linux kernel's MSM display port driver that occurs when more than eight display bridges are connected, allowing local attackers with low privileges to corrupt kernel memory beyond a fixed-size array. The vulnerability affects Linux kernel versions up to 6.1-rc2 and requires local access to exploit, with no known active exploitation in the wild (not in KEV) and a very low EPSS score of 0.02% indicating minimal real-world exploitation likelihood.

Technical ContextAI

The vulnerability resides in the Qualcomm MSM (Mobile Station Modem) display port driver within the Linux kernel's Direct Rendering Manager (DRM) subsystem. Based on the CPE data, this affects the Linux kernel versions through 6.1-rc2 (cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* and specific release candidates). The issue is classified as CWE-787 (Out-of-bounds Write), which occurs when software writes data past the end of the intended buffer. In this case, the driver fails to validate the number of display bridges before writing to a fixed-size array, potentially corrupting adjacent kernel memory structures when more than eight bridges are present in the system.

RemediationAI

Apply the available kernel patches from the vendor by updating to a Linux kernel version that includes commits 74466e46e7543c7f74f1502181e9ba93f7521374 or b312fcab461bd9484c61409007a6fe059f9c2074, available at https://git.kernel.org/stable/. For systems running affected kernels, upgrade to Linux kernel 6.1-rc3 or later stable releases that include this fix. As a temporary mitigation on systems that cannot be immediately patched, limit the number of connected display bridges to eight or fewer, though this is likely already the case for most deployments. Monitor kernel security advisories for your distribution as they will typically backport this fix to their supported kernel versions.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
Container suse/sle-micro/base-5.5:2.0.4-5.8.224 Image SLES15-SP5-BYOS-Azure Image SLES15-SP5-BYOS-EC2 Image SLES15-SP5-BYOS-GCE Image SLES15-SP5-EC2 Image SLES15-SP5-GCE Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-Hardened-BYOS-Azure Image SLES15-SP5-Hardened-BYOS-EC2 Image SLES15-SP5-Hardened-BYOS-GCE Image SLES15-SP5-Micro-5-5 Image SLES15-SP5-Micro-5-5-Azure Image SLES15-SP5-Micro-5-5-BYOS Image SLES15-SP5-Micro-5-5-BYOS-Azure Image SLES15-SP5-Micro-5-5-EC2 Image SLES15-SP5-SAPCAL-Azure Image SLES15-SP5-SAPCAL-EC2 Image SLES15-SP5-SAPCAL-GCE Affected
Container suse/sle-micro/kvm-5.5:2.0.4-3.5.429 Affected
Container suse/sle-micro/rt-5.5:2.0.4-4.5.535 Affected
Image SLES15-SP5-SAP-Azure-3P Image SLES15-SP5-SAP-Azure-LI-BYOS Image SLES15-SP5-SAP-Azure-LI-BYOS-Production Image SLES15-SP5-SAP-Azure-VLI-BYOS Image SLES15-SP5-SAP-Azure-VLI-BYOS-Production Image SLES15-SP5-SAP-BYOS-Azure Image SLES15-SP5-SAP-BYOS-EC2 Image SLES15-SP5-SAP-BYOS-GCE Image SLES15-SP5-SAP-Hardened-Azure Image SLES15-SP5-SAP-Hardened-BYOS-Azure Image SLES15-SP5-SAP-Hardened-BYOS-EC2 Image SLES15-SP5-SAP-Hardened-BYOS-GCE Image SLES15-SP5-SAP-Hardened-GCE Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed

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CVE-2022-50526 vulnerability details – vuln.today

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