CVE-2026-53135

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs [Why & How] dp_sdp_message_debugfs_write() dereferences connector->base.state->crtc without checking for NULL. A connector can be connected but not bound to any CRTC (e.g. after hot-plug before the next atomic commit), causing a kernel crash when writing to the sdp_message debugfs node. The function also ignores the user-provided size argument and always passes 36 bytes to copy_from_user(), reading past the user buffer when size < 36. Fix both issues by: - Returning -ENODEV when connector->base.state or state->crtc is NULL - Clamping write_size to min(size, sizeof(data)) (cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)
CVSS

No CVSS.

Configurations

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History

25 Jun 2026, 09:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-25 09:16

Updated : 2026-06-30 14:44


NVD link : CVE-2026-53135

Mitre link : CVE-2026-53135

CVE.ORG link : CVE-2026-53135


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Products Affected

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CWE

No CWE.