{"api_version":"1","generated_at":"2026-10-05T11:10:26+00:00","cve":"CVE-2026-93103","urls":{"html":"https://cve.report/CVE-2026-93103","api":"https://cve.report/api/cve/CVE-2026-93103.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93103","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93103"},"summary":{"title":"RDMA/hfi1: Preserve unit 0 on allocation failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Preserve unit 0 on allocation failure\n\nhfi1_free_devdata() assumes that the device was inserted into the unit\ntable and unconditionally erases dd->unit. If xa_alloc_irq() fails, the\nzero-initialized unit remains zero, so full cleanup can remove an\nunrelated device from index 0.\n\nRelease only the rdmavt allocation and return immediately while the unit\ntable has not acquired the device.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:18:04","updated_at":"2026-09-17 17:18:04"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20","name":"https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0","name":"https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81","name":"https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76","name":"https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb","name":"https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1","name":"https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051","name":"https://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e","name":"https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93103","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93103","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 03b92789e5cfdac66805c1a98f1ec67336199d56 852637d3ee56aed8ea3ee8948eda21eca406c051 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 03b92789e5cfdac66805c1a98f1ec67336199d56 3d0e5252b8d0345ef494763ca31e3ddd666e02cb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 03b92789e5cfdac66805c1a98f1ec67336199d56 0feb29d434e6cc0ebefec4f77be014c85ad751b0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 03b92789e5cfdac66805c1a98f1ec67336199d56 3f1e196eb66b8cd3882e373794d6cea46f150a20 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-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"93103","cve":"CVE-2026-93103","epss":"0.001760000","percentile":"0.074640000","score_date":"2026-09-18","updated_at":"2026-09-19 00:06:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/infiniband/hw/hfi1/init.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"852637d3ee56aed8ea3ee8948eda21eca406c051","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"3d0e5252b8d0345ef494763ca31e3ddd666e02cb","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"0feb29d434e6cc0ebefec4f77be014c85ad751b0","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"3f1e196eb66b8cd3882e373794d6cea46f150a20","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"4ff9d58d34758e9633078b37e8d5289b513ff80e","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"fd4d3ad5f244a867166d1e2da7ece3d82878ec81","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"4204f5c0312ba136181a6e148ffa0bfaf95a4cc1","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"},{"lessThan":"2e3809ad8911f5d5581b3f046bd628417bface76","status":"affected","version":"03b92789e5cfdac66805c1a98f1ec67336199d56","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/hfi1/init.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.2"},{"lessThan":"5.2","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-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Preserve unit 0 on allocation failure\n\nhfi1_free_devdata() assumes that the device was inserted into the unit\ntable and unconditionally erases dd->unit. If xa_alloc_irq() fails, the\nzero-initialized unit remains zero, so full cleanup can remove an\nunrelated device from index 0.\n\nRelease only the rdmavt allocation and return immediately while the unit\ntable has not acquired the device."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:11:15.105Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051"},{"url":"https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb"},{"url":"https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0"},{"url":"https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20"},{"url":"https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e"},{"url":"https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81"},{"url":"https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1"},{"url":"https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76"}],"title":"RDMA/hfi1: Preserve unit 0 on allocation failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93103","datePublished":"2026-09-17T16:11:15.105Z","dateReserved":"2026-09-17T16:02:15.085Z","dateUpdated":"2026-09-17T16:11:15.105Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:18:04","lastModifiedDate":"2026-09-17 17:18:04","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93103","Ordinal":"1","Title":"RDMA/hfi1: Preserve unit 0 on allocation failure","CVE":"CVE-2026-93103","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93103","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Preserve unit 0 on allocation failure\n\nhfi1_free_devdata() assumes that the device was inserted into the unit\ntable and unconditionally erases dd->unit. If xa_alloc_irq() fails, the\nzero-initialized unit remains zero, so full cleanup can remove an\nunrelated device from index 0.\n\nRelease only the rdmavt allocation and return immediately while the unit\ntable has not acquired the device.","Type":"Description","Title":"RDMA/hfi1: Preserve unit 0 on allocation failure"}]}}}