{"id":"CVE-2026-64019","state":"PUBLISHED","title":"nvme-pci: fix dma mapping leak on data setup error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix dma mapping leak on data setup error\n\nWe're leaking the initial DMA mapping during iteration if we fail to\nallocate the tracking descriptor for both PRP and SGL. Unmap the\niterator directly; we can't use the existing unmap helper because it\ndepends on the tracking descriptor being successfully allocated, so a\nnew one for an in-use iterator is provided.\n\nThe mappings were also leaking when the driver detects an invalid\nbio_vec when mapping PRPs, so fix that too.","publishedAt":"2026-07-19T15:39:13.400Z","updatedAt":"2026-10-15T10:07:56.071Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"fba32257979dda14b0d8ed7402490ae0be44972a","versionType":"git"},{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"e50db059ec8e63bc50b1cc039e2502cb5ea75a70","versionType":"git"},{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"1bf86336e4b6cf40873fda47a7fe191446864937","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]}],"references":["https://git.kernel.org/stable/c/fba32257979dda14b0d8ed7402490ae0be44972a","https://git.kernel.org/stable/c/e50db059ec8e63bc50b1cc039e2502cb5ea75a70","https://git.kernel.org/stable/c/1bf86336e4b6cf40873fda47a7fe191446864937"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64019.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64019","state":"PUBLISHED","datePublished":"2026-07-19T15:39:13.400Z","dateUpdated":"2026-10-15T10:07:56.071Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T07:54:57.027Z"},"containers":{"cna":{"title":"nvme-pci: fix dma mapping leak on data setup error","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix dma mapping leak on data setup error\n\nWe're leaking the initial DMA mapping during iteration if we fail to\nallocate the tracking descriptor for both PRP and SGL. Unmap the\niterator directly; we can't use the existing unmap helper because it\ndepends on the tracking descriptor being successfully allocated, so a\nnew one for an in-use iterator is provided.\n\nThe mappings were also leaking when the driver detects an invalid\nbio_vec when mapping PRPs, so fix that too."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"fba32257979dda14b0d8ed7402490ae0be44972a","versionType":"git"},{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"e50db059ec8e63bc50b1cc039e2502cb5ea75a70","versionType":"git"},{"version":"7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2","status":"affected","lessThan":"1bf86336e4b6cf40873fda47a7fe191446864937","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fba32257979dda14b0d8ed7402490ae0be44972a"},{"url":"https://git.kernel.org/stable/c/e50db059ec8e63bc50b1cc039e2502cb5ea75a70"},{"url":"https://git.kernel.org/stable/c/1bf86336e4b6cf40873fda47a7fe191446864937"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-15T10:07:56.071Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}