{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64234","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.771Z","datePublished":"2026-07-24T15:27:40.263Z","dateUpdated":"2026-07-24T15:27:40.263Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-24T15:27:40.263Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/pch_uart.c"],"versions":[{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"760df81763b391bb5f0dcb0b7597b736da753ae4","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"daea997bb244aeb50cbb2e5e075fb446a6cf068f","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"6dd5c0ea139b586ad5a091677056dafd405cfe82","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"d846df2dfbc2469a688833b4cc4f8aa80672bde8","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"66f8bfea055b23719b4fd6ce207c44de37d82a59","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"d8d53a343ebe74274ca17b1e1993042e99f8c863","status":"affected","versionType":"git"},{"version":"3c6a483275f47a2ef7119309ad3d791c10cf30da","lessThan":"6fe472c1bbbe238e91141f7cabc1226e96a60d43","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/tty/serial/pch_uart.c"],"versions":[{"version":"2.6.38","status":"affected"},{"version":"0","lessThan":"2.6.38","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.93","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.35","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.12","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"2.6.38","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.12.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.18.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"7.0.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"7.1"}]}]}],"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"}}}}