{"api_version":"1","generated_at":"2026-08-15T08:43:49+00:00","cve":"CVE-2026-74396","urls":{"html":"https://cve.report/CVE-2026-74396","api":"https://cve.report/api/cve/CVE-2026-74396.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74396","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74396"},"summary":{"title":"RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure\n\nmlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with\nmlx5r_umr_create_xlt(). The buffer is released by the common cleanup path\nthrough mlx5r_umr_unmap_free_xlt().\n\nAfter mlx5_odp_populate_xlt() became fallible, its error path returned\ndirectly and skipped that cleanup. This leaks the XLT DMA mapping and\nbuffer. If the emergency XLT page was used, it also leaves\nxlt_emergency_page_mutex locked.\n\nBreak out of the loop so execution falls through the existing cleanup path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:41","updated_at":"2026-08-15 06:22:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9619909d4869afe720904c6888a289b9ac3055b8","name":"https://git.kernel.org/stable/c/9619909d4869afe720904c6888a289b9ac3055b8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ffa85a2c197935ace6f1634ad9eb0a44bc615670","name":"https://git.kernel.org/stable/c/ffa85a2c197935ace6f1634ad9eb0a44bc615670","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1eae35b37923cb71b0cb5136d00671440d488b9f","name":"https://git.kernel.org/stable/c/1eae35b37923cb71b0cb5136d00671440d488b9f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74396","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74396","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1efe8c0670d6a6883faa09c9abc746c741f5664a ffa85a2c197935ace6f1634ad9eb0a44bc615670 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1efe8c0670d6a6883faa09c9abc746c741f5664a 9619909d4869afe720904c6888a289b9ac3055b8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1efe8c0670d6a6883faa09c9abc746c741f5664a 1eae35b37923cb71b0cb5136d00671440d488b9f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * 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/infiniband/hw/mlx5/umr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ffa85a2c197935ace6f1634ad9eb0a44bc615670","status":"affected","version":"1efe8c0670d6a6883faa09c9abc746c741f5664a","versionType":"git"},{"lessThan":"9619909d4869afe720904c6888a289b9ac3055b8","status":"affected","version":"1efe8c0670d6a6883faa09c9abc746c741f5664a","versionType":"git"},{"lessThan":"1eae35b37923cb71b0cb5136d00671440d488b9f","status":"affected","version":"1efe8c0670d6a6883faa09c9abc746c741f5664a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/mlx5/umr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure\n\nmlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with\nmlx5r_umr_create_xlt(). The buffer is released by the common cleanup path\nthrough mlx5r_umr_unmap_free_xlt().\n\nAfter mlx5_odp_populate_xlt() became fallible, its error path returned\ndirectly and skipped that cleanup. This leaks the XLT DMA mapping and\nbuffer. If the emergency XLT page was used, it also leaves\nxlt_emergency_page_mutex locked.\n\nBreak out of the loop so execution falls through the existing cleanup path."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:59:08.694Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ffa85a2c197935ace6f1634ad9eb0a44bc615670"},{"url":"https://git.kernel.org/stable/c/9619909d4869afe720904c6888a289b9ac3055b8"},{"url":"https://git.kernel.org/stable/c/1eae35b37923cb71b0cb5136d00671440d488b9f"}],"title":"RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74396","datePublished":"2026-08-15T05:59:08.694Z","dateReserved":"2026-08-15T05:44:03.891Z","dateUpdated":"2026-08-15T05:59:08.694Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:41","lastModifiedDate":"2026-08-15 06:22:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74396","Ordinal":"1","Title":"RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure","CVE":"CVE-2026-74396","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74396","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure\n\nmlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with\nmlx5r_umr_create_xlt(). The buffer is released by the common cleanup path\nthrough mlx5r_umr_unmap_free_xlt().\n\nAfter mlx5_odp_populate_xlt() became fallible, its error path returned\ndirectly and skipped that cleanup. This leaks the XLT DMA mapping and\nbuffer. If the emergency XLT page was used, it also leaves\nxlt_emergency_page_mutex locked.\n\nBreak out of the loop so execution falls through the existing cleanup path.","Type":"Description","Title":"RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure"}]}}}