{"api_version":"1","generated_at":"2026-10-26T07:01:25+00:00","cve":"CVE-2026-90415","urls":{"html":"https://cve.report/CVE-2026-90415","api":"https://cve.report/api/cve/CVE-2026-90415.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90415","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90415"},"summary":{"title":"RDMA/cxgb4: free STAG index when TPT entry write fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: free STAG index when TPT entry write fails\n\nwrite_tpt_entry() allocates a new STAG index with c4iw_get_resource() and\nbumps stats.stag.cur before programming the entry.  When\nwrite_adapter_mem() fails, it returns the error without releasing the index\nor reversing the statistic.  No MR is inserted into rhp->mrs, so\nderegistration never reclaims it, leaking the index until device teardown.\n\nRecord whether this call allocated the index and, on a failed write, return\nit to tpt_table and decrement stats.stag.cur.  Key the rollback on both the\nwrite error and that flag, not the error alone: a non-reset update carries\na caller-owned STAG that this call did not allocate and must not free.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:45","updated_at":"2026-10-19 09:19:35"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a64e2beb450179a5d43034af8d5476a11eac1486","name":"https://git.kernel.org/stable/c/a64e2beb450179a5d43034af8d5476a11eac1486","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9eeafcda1d6c11f0eec532243c4e96ec8c632bd7","name":"https://git.kernel.org/stable/c/9eeafcda1d6c11f0eec532243c4e96ec8c632bd7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fdfb5cea4bf070cdb31d997efd87bb684df041fd","name":"https://git.kernel.org/stable/c/fdfb5cea4bf070cdb31d997efd87bb684df041fd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5fe4731bfbd8d83c4a14b4af3a27329969ce8a99","name":"https://git.kernel.org/stable/c/5fe4731bfbd8d83c4a14b4af3a27329969ce8a99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8f6976d635d190e3d7af7103daaa581cf1ccc12e","name":"https://git.kernel.org/stable/c/8f6976d635d190e3d7af7103daaa581cf1ccc12e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2f17ca7ab5269ac2504e1039c3921373dccd7712","name":"https://git.kernel.org/stable/c/2f17ca7ab5269ac2504e1039c3921373dccd7712","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a2e37d1ab773be3cd26b1c19593ca2dbcece9c57","name":"https://git.kernel.org/stable/c/a2e37d1ab773be3cd26b1c19593ca2dbcece9c57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a21e5114cec4cd3f8a2843d4c46bc49634d6e96","name":"https://git.kernel.org/stable/c/5a21e5114cec4cd3f8a2843d4c46bc49634d6e96","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90415","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90415","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec3eead217181d7360a11317a888ceb30807867c 5fe4731bfbd8d83c4a14b4af3a27329969ce8a99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec3eead217181d7360a11317a888ceb30807867c 8f6976d635d190e3d7af7103daaa581cf1ccc12e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec3eead217181d7360a11317a888ceb30807867c 9eeafcda1d6c11f0eec532243c4e96ec8c632bd7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ec3eead217181d7360a11317a888ceb30807867c 5a21e5114cec4cd3f8a2843d4c46bc49634d6e96 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * 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/cxgb4/mem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5fe4731bfbd8d83c4a14b4af3a27329969ce8a99","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"8f6976d635d190e3d7af7103daaa581cf1ccc12e","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"9eeafcda1d6c11f0eec532243c4e96ec8c632bd7","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"5a21e5114cec4cd3f8a2843d4c46bc49634d6e96","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"2f17ca7ab5269ac2504e1039c3921373dccd7712","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"a2e37d1ab773be3cd26b1c19593ca2dbcece9c57","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"a64e2beb450179a5d43034af8d5476a11eac1486","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"},{"lessThan":"fdfb5cea4bf070cdb31d997efd87bb684df041fd","status":"affected","version":"ec3eead217181d7360a11317a888ceb30807867c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/cxgb4/mem.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.5"},{"lessThan":"3.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"3.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"3.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: free STAG index when TPT entry write fails\n\nwrite_tpt_entry() allocates a new STAG index with c4iw_get_resource() and\nbumps stats.stag.cur before programming the entry.  When\nwrite_adapter_mem() fails, it returns the error without releasing the index\nor reversing the statistic.  No MR is inserted into rhp->mrs, so\nderegistration never reclaims it, leaking the index until device teardown.\n\nRecord whether this call allocated the index and, on a failed write, return\nit to tpt_table and decrement stats.stag.cur.  Key the rollback on both the\nwrite error and that flag, not the error alone: a non-reset update carries\na caller-owned STAG that this call did not allocate and must not free."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:03:19.452Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5fe4731bfbd8d83c4a14b4af3a27329969ce8a99"},{"url":"https://git.kernel.org/stable/c/8f6976d635d190e3d7af7103daaa581cf1ccc12e"},{"url":"https://git.kernel.org/stable/c/9eeafcda1d6c11f0eec532243c4e96ec8c632bd7"},{"url":"https://git.kernel.org/stable/c/5a21e5114cec4cd3f8a2843d4c46bc49634d6e96"},{"url":"https://git.kernel.org/stable/c/2f17ca7ab5269ac2504e1039c3921373dccd7712"},{"url":"https://git.kernel.org/stable/c/a2e37d1ab773be3cd26b1c19593ca2dbcece9c57"},{"url":"https://git.kernel.org/stable/c/a64e2beb450179a5d43034af8d5476a11eac1486"},{"url":"https://git.kernel.org/stable/c/fdfb5cea4bf070cdb31d997efd87bb684df041fd"}],"title":"RDMA/cxgb4: free STAG index when TPT entry write fails","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90415","datePublished":"2026-09-17T16:09:40.714Z","dateReserved":"2026-09-11T19:38:34.813Z","dateUpdated":"2026-10-19T09:03:19.452Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:45","lastModifiedDate":"2026-10-19 09:19:35","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90415","Ordinal":"1","Title":"RDMA/cxgb4: free STAG index when TPT entry write fails","CVE":"CVE-2026-90415","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90415","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: free STAG index when TPT entry write fails\n\nwrite_tpt_entry() allocates a new STAG index with c4iw_get_resource() and\nbumps stats.stag.cur before programming the entry.  When\nwrite_adapter_mem() fails, it returns the error without releasing the index\nor reversing the statistic.  No MR is inserted into rhp->mrs, so\nderegistration never reclaims it, leaking the index until device teardown.\n\nRecord whether this call allocated the index and, on a failed write, return\nit to tpt_table and decrement stats.stag.cur.  Key the rollback on both the\nwrite error and that flag, not the error alone: a non-reset update carries\na caller-owned STAG that this call did not allocate and must not free.","Type":"Description","Title":"RDMA/cxgb4: free STAG index when TPT entry write fails"}]}}}