{"id":"CVE-2026-68107","title":"drm/amdgpu/vcn4: avoid rereading IB param length","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn4: avoid rereading IB param length\n\nReuse the parameter length returned by\nvcn_v4_0_enc_find_ib_param() instead of rereading it from\nthe IB.\n\nThis avoids …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= cfdde9197ecd957281507be99af172671a57755c < bbbe6a2a8d8dc87243438d3ffea2083b52d882d9","Linux >= 6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84 < ff6aa542d91d76a185f69bd1997b94a560ff5f6b","Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < bd868c077f67589ed2a714307ceaade5f246e302","Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < c309626bf91fa0a0b583575654e6e14e81f818a3","Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < 3b4082fabc67c9780b06eb959e59dd92fa79c0f0","Linux b1dc92f55b22a80ded8f0263c9ef4ba902303895","Linux >= 6.6.107 < 6.6.148","Linux >= 6.12.48 < 6.12.101","Linux >= 6.16.8 < 6.17","Linux 6.17"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:43:57.531323Z"},"published":"2026-08-10","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:52:57.067Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68107","references":[{"url":"https://git.kernel.org/stable/c/bbbe6a2a8d8dc87243438d3ffea2083b52d882d9"},{"url":"https://git.kernel.org/stable/c/ff6aa542d91d76a185f69bd1997b94a560ff5f6b"},{"url":"https://git.kernel.org/stable/c/bd868c077f67589ed2a714307ceaade5f246e302"},{"url":"https://git.kernel.org/stable/c/c309626bf91fa0a0b583575654e6e14e81f818a3"},{"url":"https://git.kernel.org/stable/c/3b4082fabc67c9780b06eb959e59dd92fa79c0f0"}],"tags":["cve.org"],"epss":0.00128,"epssPercentile":0.02204,"ingestedAt":"2026-10-16T17:24:46.839Z","slug":"CVE-2026-68107","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn4: avoid rereading IB param length\n\nReuse the parameter length returned by\nvcn_v4_0_enc_find_ib_param() instead of rereading it from\nthe IB.\n\nThis avoids a potential TOCTOU issue if the IB contents\nchange between reads.\n\n(cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)\n\n## Affected\n\n- `Linux >= cfdde9197ecd957281507be99af172671a57755c < bbbe6a2a8d8dc87243438d3ffea2083b52d882d9`\n- `Linux >= 6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84 < ff6aa542d91d76a185f69bd1997b94a560ff5f6b`\n- `Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < bd868c077f67589ed2a714307ceaade5f246e302`\n- `Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < c309626bf91fa0a0b583575654e6e14e81f818a3`\n- `Linux >= 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < 3b4082fabc67c9780b06eb959e59dd92fa79c0f0`\n- `Linux b1dc92f55b22a80ded8f0263c9ef4ba902303895`\n- `Linux >= 6.6.107 < 6.6.148`\n- `Linux >= 6.12.48 < 6.12.101`\n- `Linux >= 6.16.8 < 6.17`\n- `Linux 6.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}