{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68277", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.379Z", "datePublished": "2026-08-10T12:01:53.085Z", "dateUpdated": "2026-08-10T12:01:53.085Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:01:53.085Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp/mst: fix OOB reads on 2-byte fields in sideband reply parsers\n\nThree sideband reply parsers read 16-bit fields as:\n\n val = (raw->msg[idx] << 8) | (raw->msg[idx+1]);\n\nand check bounds only after the fact. When idx == raw->curlen,\nraw->msg[idx+1] reads one byte past the received message data into\nthe following struct fields (curchunk_len, curchunk_idx, curlen).\n\nAffected functions:\n - drm_dp_sideband_parse_enum_path_resources_ack()\n full_payload_bw_number and avail_payload_bw_number fields\n - drm_dp_sideband_parse_allocate_payload_ack()\n allocated_pbn field\n - drm_dp_sideband_parse_query_payload_ack()\n allocated_pbn field\n\nFix by using a single combined check (idx + 2 > curlen) before each\n2-byte read. Since the check is strictly tighter than idx > curlen,\nno separate step is needed.\n\n[added fixes tag]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/display/drm_dp_mst_topology.c"], "versions": [{"version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd", "lessThan": "bdf0508b1e6785d4a8982c637e97e68d60b47d7b", "status": "affected", "versionType": "git"}, {"version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd", "lessThan": "0bcd7675c69a2462a8531fcd9e4d096e9c7ec5df", "status": "affected", "versionType": "git"}, {"version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd", "lessThan": "d5c70523cafa26ad2c7a37b612849abe2683baa8", "status": "affected", "versionType": "git"}, {"version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd", "lessThan": "68a624416d1dd481b3e5b7ea0e8a070a9b8a2c73", "status": "affected", "versionType": "git"}, {"version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd", "lessThan": "6b89ba3dba2f583626fb693e47e951ffb8bf591f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/display/drm_dp_mst_topology.c"], "versions": [{"version": "3.17", "status": "affected"}, {"version": "0", "lessThan": "3.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bdf0508b1e6785d4a8982c637e97e68d60b47d7b"}, {"url": "https://git.kernel.org/stable/c/0bcd7675c69a2462a8531fcd9e4d096e9c7ec5df"}, {"url": "https://git.kernel.org/stable/c/d5c70523cafa26ad2c7a37b612849abe2683baa8"}, {"url": "https://git.kernel.org/stable/c/68a624416d1dd481b3e5b7ea0e8a070a9b8a2c73"}, {"url": "https://git.kernel.org/stable/c/6b89ba3dba2f583626fb693e47e951ffb8bf591f"}], "title": "drm/dp/mst: fix OOB reads on 2-byte fields in sideband reply parsers", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{}

{"created": "2026-08-10T17:30:18.000374+00:00", "updated": "2026-08-10T17:30:18.000380+00:00", "vendors": [], "weaknesses": ["CWE-125"]}