{"cve":{"cve_id":"CVE-2026-53138","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Bound VBIOS record-chain walk loops\n\n[Why & How]\nAll record-chain walk loops in bios_parser.c and bios_parser2.c use\nfor(;;) and only terminate on a 0xFF record_type sentinel or zero\nrecord_size. A malformed VBIOS image missing the terminator record\ncauses unbounded iteration at probe time, potentially hundreds of\nthousands of iterations with record_size=1. In the final iterations\nnear the BIOS image boundary, struct casts beyond the 2-byte header\nvalidated by GET_IMAGE can also read out of bounds.\n\nCap all 14 record-chain walk loops to BIOS_MAX_NUM_RECORD (256)\niterations. The atombios.h defines up to 22 distinct record types\nand atomfirmware.h has 13. Assuming an average of less than 10\nrecords per type (which is reasonable since most are connector-\nbased) 256 is a generous upper bound.\n\n(cherry picked from commit 95700a3d660287ed657d6892f7be9ffc0e294a93)","published_at":"2026-06-25T08:38:26.859000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/6173cfea2f916e01c4f98e29cd654384a05e32a3","https://git.kernel.org/stable/c/0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1","https://git.kernel.org/stable/c/2645e3caf7e013189da9c6ff621d006cca5a538b","https://git.kernel.org/stable/c/ff287df16a1a58aca78b08d1f3ee09fc44da0351"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:28.590503Z","updated_at":"2026-06-28T23:30:50.753831Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","version_start_inclusive":true,"version_end":"6173cfea2f916e01c4f98e29cd654384a05e32a3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c:6173cfea2f916e01c4f98e29cd654384a05e32a3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","version_start_inclusive":true,"version_end":"0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c:0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","version_start_inclusive":true,"version_end":"2645e3caf7e013189da9c6ff621d006cca5a538b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c:2645e3caf7e013189da9c6ff621d006cca5a538b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c","version_start_inclusive":true,"version_end":"ff287df16a1a58aca78b08d1f3ee09fc44da0351","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c:ff287df16a1a58aca78b08d1f3ee09fc44da0351"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.15","version_start_inclusive":true,"version_end":"4.15","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.15:4.15"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.15","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.15"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.94","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.94:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.36","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.36:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.13","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.13:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/6173cfea2f916e01c4f98e29cd654384a05e32a3","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/2645e3caf7e013189da9c6ff621d006cca5a538b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/ff287df16a1a58aca78b08d1f3ee09fc44da0351","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-25T08:38:26.859000Z","label":"CVE published","source":null}]}