{"api_version":"1","generated_at":"2026-08-15T08:44:18+00:00","cve":"CVE-2026-74397","urls":{"html":"https://cve.report/CVE-2026-74397","api":"https://cve.report/api/cve/CVE-2026-74397.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74397","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74397"},"summary":{"title":"IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier\n\nmlx5_ib_alloc_transport_domain() allocates a transport domain and then\nmay fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked.\n\nFix this by deallocating the TD when mlx5_ib_enable_lb() returns an\nerror. Also return 0 explicitly in the no-loopback-capability success\nbranch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init().","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/e79389115b9d27287ff6230a9750675106ed7668","name":"https://git.kernel.org/stable/c/e79389115b9d27287ff6230a9750675106ed7668","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a","name":"https://git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57","name":"https://git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0","name":"https://git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066","name":"https://git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74397","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74397","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 146d2f1af3245a10b13eef263687e54f4e253d1d 2c3b2667dad69d56774b79db763acb3a1bee0fc0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 146d2f1af3245a10b13eef263687e54f4e253d1d 37fc3cc0f924fd8d0f0cf87b92672dec75a32e57 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 146d2f1af3245a10b13eef263687e54f4e253d1d 65e344925fa30abf50c8de8c150b397715fa2066 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 146d2f1af3245a10b13eef263687e54f4e253d1d f88e12c95fc19f719e06ca1e9eb20fdad68ef61a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 146d2f1af3245a10b13eef263687e54f4e253d1d e79389115b9d27287ff6230a9750675106ed7668 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* 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/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2c3b2667dad69d56774b79db763acb3a1bee0fc0","status":"affected","version":"146d2f1af3245a10b13eef263687e54f4e253d1d","versionType":"git"},{"lessThan":"37fc3cc0f924fd8d0f0cf87b92672dec75a32e57","status":"affected","version":"146d2f1af3245a10b13eef263687e54f4e253d1d","versionType":"git"},{"lessThan":"65e344925fa30abf50c8de8c150b397715fa2066","status":"affected","version":"146d2f1af3245a10b13eef263687e54f4e253d1d","versionType":"git"},{"lessThan":"f88e12c95fc19f719e06ca1e9eb20fdad68ef61a","status":"affected","version":"146d2f1af3245a10b13eef263687e54f4e253d1d","versionType":"git"},{"lessThan":"e79389115b9d27287ff6230a9750675106ed7668","status":"affected","version":"146d2f1af3245a10b13eef263687e54f4e253d1d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/mlx5/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.5"},{"lessThan":"4.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","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":"6.6.145","versionStartIncluding":"4.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"4.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"4.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"4.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"4.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier\n\nmlx5_ib_alloc_transport_domain() allocates a transport domain and then\nmay fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked.\n\nFix this by deallocating the TD when mlx5_ib_enable_lb() returns an\nerror. Also return 0 explicitly in the no-loopback-capability success\nbranch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init()."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:59:09.329Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2c3b2667dad69d56774b79db763acb3a1bee0fc0"},{"url":"https://git.kernel.org/stable/c/37fc3cc0f924fd8d0f0cf87b92672dec75a32e57"},{"url":"https://git.kernel.org/stable/c/65e344925fa30abf50c8de8c150b397715fa2066"},{"url":"https://git.kernel.org/stable/c/f88e12c95fc19f719e06ca1e9eb20fdad68ef61a"},{"url":"https://git.kernel.org/stable/c/e79389115b9d27287ff6230a9750675106ed7668"}],"title":"IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74397","datePublished":"2026-08-15T05:59:09.329Z","dateReserved":"2026-08-15T05:44:03.891Z","dateUpdated":"2026-08-15T05:59:09.329Z","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":"74397","Ordinal":"1","Title":"IB/mlx5: Fix transport-domain rollback and initialize lb mutex e","CVE":"CVE-2026-74397","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74397","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier\n\nmlx5_ib_alloc_transport_domain() allocates a transport domain and then\nmay fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked.\n\nFix this by deallocating the TD when mlx5_ib_enable_lb() returns an\nerror. Also return 0 explicitly in the no-loopback-capability success\nbranch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init().","Type":"Description","Title":"IB/mlx5: Fix transport-domain rollback and initialize lb mutex e"}]}}}