{"api_version":"1","generated_at":"2026-08-16T11:25:11+00:00","cve":"CVE-2026-74453","urls":{"html":"https://cve.report/CVE-2026-74453","api":"https://cve.report/api/cve/CVE-2026-74453.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74453","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74453"},"summary":{"title":"drm/vc4: Zero the tile state data array before each BIN job","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: Zero the tile state data array before each BIN job\n\nThe binner BO is a single 16MB buffer split into 512KB slots that are\nhanded out to jobs at submission time and recycled as jobs complete,\nwithout ever being cleared. Each slot holds the job's Tile State Data\nArray (TSDA) at its start, followed by the tile allocation pool.\n\nWhile the tile allocation pool is only walked by the render thread\nthrough branches the binner generated during the current job, the\nTSDA is the PTB's own per-tile bookkeeping and is consumed by the\nhardware itself. Although the kernel sets the \"Auto-initialise Tile\nState Data Array\" flag in the tile binning mode configuration, the\nPTB demonstrably still acts on stale tile state left by the slot's\nprevious user: the binner ends up creating invalid command streams\nwith invalid primitive streams and branches, which can cause GPU hangs\nas observed in [1][2].\n\nZero the TSDA when the job's binning slot is configured. This clears\n48 bytes per tile (~24KB for a 1080p frame) in the submission path, and\nguarantees the PTB never sees another job's tile state.\n\nThe tile count is only checked for being non-zero today, so the 8-bit\nfields it comes from can describe a tile state array almost six times\nlarger than the slot it has to live in. Bound it before the slot is\nhanded out, since such size decides how much of the slot is left for\nthe tile alloc pool.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:49","updated_at":"2026-08-15 13:17:49"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f5802be65535f8818af7191159cf8c11f48ab2a2","name":"https://git.kernel.org/stable/c/f5802be65535f8818af7191159cf8c11f48ab2a2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/57667eb7548faaac396c6e39f3b4444dab5b097c","name":"https://git.kernel.org/stable/c/57667eb7548faaac396c6e39f3b4444dab5b097c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a75c8f365e209aa9bb927b0942a7840152d44892","name":"https://git.kernel.org/stable/c/a75c8f365e209aa9bb927b0942a7840152d44892","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/48a570c964d8e37d353381e4195106277e17f5cb","name":"https://git.kernel.org/stable/c/48a570c964d8e37d353381e4195106277e17f5cb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0e858422df2334165293ea742da9fbb2e51f2739","name":"https://git.kernel.org/stable/c/0e858422df2334165293ea742da9fbb2e51f2739","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74453","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74453","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 553c942f8b2cbc7394b4d4fa2f848b23a8f07451 f5802be65535f8818af7191159cf8c11f48ab2a2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 553c942f8b2cbc7394b4d4fa2f848b23a8f07451 0e858422df2334165293ea742da9fbb2e51f2739 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 553c942f8b2cbc7394b4d4fa2f848b23a8f07451 57667eb7548faaac396c6e39f3b4444dab5b097c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 553c942f8b2cbc7394b4d4fa2f848b23a8f07451 a75c8f365e209aa9bb927b0942a7840152d44892 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 553c942f8b2cbc7394b4d4fa2f848b23a8f07451 48a570c964d8e37d353381e4195106277e17f5cb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc6 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_validate.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f5802be65535f8818af7191159cf8c11f48ab2a2","status":"affected","version":"553c942f8b2cbc7394b4d4fa2f848b23a8f07451","versionType":"git"},{"lessThan":"0e858422df2334165293ea742da9fbb2e51f2739","status":"affected","version":"553c942f8b2cbc7394b4d4fa2f848b23a8f07451","versionType":"git"},{"lessThan":"57667eb7548faaac396c6e39f3b4444dab5b097c","status":"affected","version":"553c942f8b2cbc7394b4d4fa2f848b23a8f07451","versionType":"git"},{"lessThan":"a75c8f365e209aa9bb927b0942a7840152d44892","status":"affected","version":"553c942f8b2cbc7394b4d4fa2f848b23a8f07451","versionType":"git"},{"lessThan":"48a570c964d8e37d353381e4195106277e17f5cb","status":"affected","version":"553c942f8b2cbc7394b4d4fa2f848b23a8f07451","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_validate.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"4.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc6","versionStartIncluding":"4.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: Zero the tile state data array before each BIN job\n\nThe binner BO is a single 16MB buffer split into 512KB slots that are\nhanded out to jobs at submission time and recycled as jobs complete,\nwithout ever being cleared. Each slot holds the job's Tile State Data\nArray (TSDA) at its start, followed by the tile allocation pool.\n\nWhile the tile allocation pool is only walked by the render thread\nthrough branches the binner generated during the current job, the\nTSDA is the PTB's own per-tile bookkeeping and is consumed by the\nhardware itself. Although the kernel sets the \"Auto-initialise Tile\nState Data Array\" flag in the tile binning mode configuration, the\nPTB demonstrably still acts on stale tile state left by the slot's\nprevious user: the binner ends up creating invalid command streams\nwith invalid primitive streams and branches, which can cause GPU hangs\nas observed in [1][2].\n\nZero the TSDA when the job's binning slot is configured. This clears\n48 bytes per tile (~24KB for a 1080p frame) in the submission path, and\nguarantees the PTB never sees another job's tile state.\n\nThe tile count is only checked for being non-zero today, so the 8-bit\nfields it comes from can describe a tile state array almost six times\nlarger than the slot it has to live in. Bound it before the slot is\nhanded out, since such size decides how much of the slot is left for\nthe tile alloc pool."}],"providerMetadata":{"dateUpdated":"2026-08-15T12:26:56.949Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f5802be65535f8818af7191159cf8c11f48ab2a2"},{"url":"https://git.kernel.org/stable/c/0e858422df2334165293ea742da9fbb2e51f2739"},{"url":"https://git.kernel.org/stable/c/57667eb7548faaac396c6e39f3b4444dab5b097c"},{"url":"https://git.kernel.org/stable/c/a75c8f365e209aa9bb927b0942a7840152d44892"},{"url":"https://git.kernel.org/stable/c/48a570c964d8e37d353381e4195106277e17f5cb"}],"title":"drm/vc4: Zero the tile state data array before each BIN job","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74453","datePublished":"2026-08-15T12:26:56.949Z","dateReserved":"2026-08-15T05:44:03.899Z","dateUpdated":"2026-08-15T12:26:56.949Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:49","lastModifiedDate":"2026-08-15 13:17:49","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74453","Ordinal":"1","Title":"drm/vc4: Zero the tile state data array before each BIN job","CVE":"CVE-2026-74453","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74453","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: Zero the tile state data array before each BIN job\n\nThe binner BO is a single 16MB buffer split into 512KB slots that are\nhanded out to jobs at submission time and recycled as jobs complete,\nwithout ever being cleared. Each slot holds the job's Tile State Data\nArray (TSDA) at its start, followed by the tile allocation pool.\n\nWhile the tile allocation pool is only walked by the render thread\nthrough branches the binner generated during the current job, the\nTSDA is the PTB's own per-tile bookkeeping and is consumed by the\nhardware itself. Although the kernel sets the \"Auto-initialise Tile\nState Data Array\" flag in the tile binning mode configuration, the\nPTB demonstrably still acts on stale tile state left by the slot's\nprevious user: the binner ends up creating invalid command streams\nwith invalid primitive streams and branches, which can cause GPU hangs\nas observed in [1][2].\n\nZero the TSDA when the job's binning slot is configured. This clears\n48 bytes per tile (~24KB for a 1080p frame) in the submission path, and\nguarantees the PTB never sees another job's tile state.\n\nThe tile count is only checked for being non-zero today, so the 8-bit\nfields it comes from can describe a tile state array almost six times\nlarger than the slot it has to live in. Bound it before the slot is\nhanded out, since such size decides how much of the slot is left for\nthe tile alloc pool.","Type":"Description","Title":"drm/vc4: Zero the tile state data array before each BIN job"}]}}}