{"id":"CVE-2026-64321","state":"PUBLISHED","title":"nvme: target: rdma: fix ndev refcount leak on queue connect","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: target: rdma: fix ndev refcount leak on queue connect\n\nnvmet_rdma_queue_connect() calls nvmet_rdma_find_get_device() which\nacquires a reference on the returned ndev via kref_get(). On the path\nwhere the host queue backlog is exceeded and the function returns\nNVME_SC_CONNECT_CTRL_BUSY, reference of ndev is not released, leaking\nthe kref.\n\nFix this by adding a goto to the existing put_device label before the\nearly return.","publishedAt":"2026-07-25T08:49:49.541Z","updatedAt":"2026-09-14T11:58:38.599Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"28877977bbc4f44dd3068b74ee781466c597a3b3","status":"affected","lessThan":"204b9645536bb4a77a2cb35e6519dbf9f4ea1665","versionType":"git"},{"version":"bd3f40fdec552f9200e7b8521ef02b578c9ee8b0","status":"affected","lessThan":"00eaa58988d35fd47ca8811f7f72871591f61ffb","versionType":"git"},{"version":"85a79da286b65ae2238a22ac901a0039779e613e","status":"affected","lessThan":"712f3268a62d0df98a7ee991cba963ced2e58007","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"d65fe42820b890a6a4644de0a95a812471f79ad3","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"a8803c4f0ac3fa7df5551bbb5a8800c434a94357","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"5828517d17eda27f21d29ea14800c9e0a57bad11","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"badc53620fe813b3a9f727ef9526f98567c2c898","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/rdma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/rdma.c"]}],"references":["https://git.kernel.org/stable/c/204b9645536bb4a77a2cb35e6519dbf9f4ea1665","https://git.kernel.org/stable/c/00eaa58988d35fd47ca8811f7f72871591f61ffb","https://git.kernel.org/stable/c/712f3268a62d0df98a7ee991cba963ced2e58007","https://git.kernel.org/stable/c/d65fe42820b890a6a4644de0a95a812471f79ad3","https://git.kernel.org/stable/c/a8803c4f0ac3fa7df5551bbb5a8800c434a94357","https://git.kernel.org/stable/c/5828517d17eda27f21d29ea14800c9e0a57bad11","https://git.kernel.org/stable/c/badc53620fe813b3a9f727ef9526f98567c2c898"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64321.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64321","state":"PUBLISHED","datePublished":"2026-07-25T08:49:49.541Z","dateUpdated":"2026-09-14T11:58:38.599Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T15:36:31.780Z"},"containers":{"cna":{"title":"nvme: target: rdma: fix ndev refcount leak on queue connect","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: target: rdma: fix ndev refcount leak on queue connect\n\nnvmet_rdma_queue_connect() calls nvmet_rdma_find_get_device() which\nacquires a reference on the returned ndev via kref_get(). On the path\nwhere the host queue backlog is exceeded and the function returns\nNVME_SC_CONNECT_CTRL_BUSY, reference of ndev is not released, leaking\nthe kref.\n\nFix this by adding a goto to the existing put_device label before the\nearly return."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"28877977bbc4f44dd3068b74ee781466c597a3b3","status":"affected","lessThan":"204b9645536bb4a77a2cb35e6519dbf9f4ea1665","versionType":"git"},{"version":"bd3f40fdec552f9200e7b8521ef02b578c9ee8b0","status":"affected","lessThan":"00eaa58988d35fd47ca8811f7f72871591f61ffb","versionType":"git"},{"version":"85a79da286b65ae2238a22ac901a0039779e613e","status":"affected","lessThan":"712f3268a62d0df98a7ee991cba963ced2e58007","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"d65fe42820b890a6a4644de0a95a812471f79ad3","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"a8803c4f0ac3fa7df5551bbb5a8800c434a94357","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"5828517d17eda27f21d29ea14800c9e0a57bad11","versionType":"git"},{"version":"31deaeb11ba7a885116c9c30892b9f763c04d59c","status":"affected","lessThan":"badc53620fe813b3a9f727ef9526f98567c2c898","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/rdma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/rdma.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/204b9645536bb4a77a2cb35e6519dbf9f4ea1665"},{"url":"https://git.kernel.org/stable/c/00eaa58988d35fd47ca8811f7f72871591f61ffb"},{"url":"https://git.kernel.org/stable/c/712f3268a62d0df98a7ee991cba963ced2e58007"},{"url":"https://git.kernel.org/stable/c/d65fe42820b890a6a4644de0a95a812471f79ad3"},{"url":"https://git.kernel.org/stable/c/a8803c4f0ac3fa7df5551bbb5a8800c434a94357"},{"url":"https://git.kernel.org/stable/c/5828517d17eda27f21d29ea14800c9e0a57bad11"},{"url":"https://git.kernel.org/stable/c/badc53620fe813b3a9f727ef9526f98567c2c898"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-09-14T11:58:38.599Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}