{"cve":"CVE-2026-53135","nvd":{"published":"2026-06-25T09:16:30.787","modified":"2026-07-07T16:57:55.730","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs\n\n[Why & How]\ndp_sdp_message_debugfs_write() dereferences connector->base.state->crtc\nwithout checking for NULL. A connector can be connected but not bound to\nany CRTC (e.g. after hot-plug before the next atomic commit), causing a\nkernel crash when writing to the sdp_message debugfs node.\n\nThe function also ignores the user-provided size argument and always\npasses 36 bytes to copy_from_user(), reading past the user buffer when\nsize < 36.\n\nFix both issues by:\n- Returning -ENODEV when connector->base.state or state->crtc is NULL\n- Clamping write_size to min(size, sizeof(data))\n\n(cherry picked from commit 6ab4c36a522842ff70474a1c0af2e40e50fc8300)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/7ae95c0275c330b5dbae806f8e431720edad776f","https://git.kernel.org/stable/c/7fc4fab4acc307ad2903312c195872b2953d32c3","https://git.kernel.org/stable/c/a2de1d71891a038a9346b2c1a72b88c8350f2479","https://git.kernel.org/stable/c/adf67034b1f61f7119295208085bfd43f85f56af","https://git.kernel.org/stable/c/b781f90a9528555c709e59789550893581ef0be4"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-53135","score":0.00123,"percentile":0.02027,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}