{"api_version":"1","generated_at":"2026-07-24T21:50:41+00:00","cve":"CVE-2026-64234","urls":{"html":"https://cve.report/CVE-2026-64234","api":"https://cve.report/api/cve/CVE-2026-64234.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64234","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64234"},"summary":{"title":"tty: serial: pch_uart: add check for dma_alloc_coherent()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: pch_uart: add check for dma_alloc_coherent()\n\nAdd a check for dma_alloc_coherent() failure to prevent a potential\nNULL pointer dereference in dma_handle_rx(). Properly release DMA\nchannels and the PCI device reference using a goto ladder if the\nallocation fails.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-24 16:16:52","updated_at":"2026-07-24 16:16:52"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf","name":"https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82","name":"https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8","name":"https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59","name":"https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4","name":"https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43","name":"https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863","name":"https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f","name":"https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64234","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64234","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c6a483275f47a2ef7119309ad3d791c10cf30da 760df81763b391bb5f0dcb0b7597b736da753ae4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c6a483275f47a2ef7119309ad3d791c10cf30da 5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c6a483275f47a2ef7119309ad3d791c10cf30da daea997bb244aeb50cbb2e5e075fb446a6cf068f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c6a483275f47a2ef7119309ad3d791c10cf30da 6dd5c0ea139b586ad5a091677056dafd405cfe82 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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/tty/serial/pch_uart.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"760df81763b391bb5f0dcb0b7597b736da753ae4","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"daea997bb244aeb50cbb2e5e075fb446a6cf068f","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"6dd5c0ea139b586ad5a091677056dafd405cfe82","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"d846df2dfbc2469a688833b4cc4f8aa80672bde8","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"66f8bfea055b23719b4fd6ce207c44de37d82a59","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"d8d53a343ebe74274ca17b1e1993042e99f8c863","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"},{"lessThan":"6fe472c1bbbe238e91141f7cabc1226e96a60d43","status":"affected","version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/tty/serial/pch_uart.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.38"},{"lessThan":"2.6.38","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"2.6.38","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: pch_uart: add check for dma_alloc_coherent()\n\nAdd a check for dma_alloc_coherent() failure to prevent a potential\nNULL pointer dereference in dma_handle_rx(). Properly release DMA\nchannels and the PCI device reference using a goto ladder if the\nallocation fails."}],"providerMetadata":{"dateUpdated":"2026-07-24T15:27:40.263Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4"},{"url":"https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf"},{"url":"https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f"},{"url":"https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82"},{"url":"https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8"},{"url":"https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59"},{"url":"https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863"},{"url":"https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43"}],"title":"tty: serial: pch_uart: add check for dma_alloc_coherent()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64234","datePublished":"2026-07-24T15:27:40.263Z","dateReserved":"2026-07-19T15:36:31.771Z","dateUpdated":"2026-07-24T15:27:40.263Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-24 16:16:52","lastModifiedDate":"2026-07-24 16:16:52","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64234","Ordinal":"1","Title":"tty: serial: pch_uart: add check for dma_alloc_coherent()","CVE":"CVE-2026-64234","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64234","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: pch_uart: add check for dma_alloc_coherent()\n\nAdd a check for dma_alloc_coherent() failure to prevent a potential\nNULL pointer dereference in dma_handle_rx(). Properly release DMA\nchannels and the PCI device reference using a goto ladder if the\nallocation fails.","Type":"Description","Title":"tty: serial: pch_uart: add check for dma_alloc_coherent()"}]}}}