{"api_version":"1","generated_at":"2026-06-28T18:51:00+00:00","cve":"CVE-2026-53186","urls":{"html":"https://cve.report/CVE-2026-53186","api":"https://cve.report/api/cve/CVE-2026-53186.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53186","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53186"},"summary":{"title":"RDMA/srp: bound SRP_RSP sense copy by the received length","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srp: bound SRP_RSP sense copy by the received length\n\nsrp_process_rsp() copies sense data from rsp->data + resp_data_len,\nwhere resp_data_len is the full 32-bit value supplied by the SRP target\nand is never checked against the number of bytes actually received\n(wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSIZE, so\nat most 96 bytes are copied, but the source offset is not bounded.\n\nA malicious or compromised SRP target on the InfiniBand/RoCE fabric that\nthe initiator has logged into can return an SRP_RSP with\nSRP_RSP_FLAG_SNSVALID set and a large resp_data_len. The receive buffer\nis allocated at the target-chosen max_ti_iu_len, so the source of the\nsense copy lands past the bytes actually received; with resp_data_len\nnear 0xFFFFFFFF it is gigabytes past the buffer and the read faults.\n\nCopy the sense data only if it has not been truncated, that is, only if\nthe response header, the response data, and the sense region fit within\nthe bytes actually received; otherwise drop the sense and log. The\nin-tree iSER and NVMe-RDMA receive paths already bound their parse by\nwc->byte_len; this brings ib_srp into line with them.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:36","updated_at":"2026-06-28 08:16:37"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/3889517c2ec7f364914aea8209abfff735f7ecde","name":"https://git.kernel.org/stable/c/3889517c2ec7f364914aea8209abfff735f7ecde","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ed77cc819ad631264787cade5ae5ec4c535ec6bb","name":"https://git.kernel.org/stable/c/ed77cc819ad631264787cade5ae5ec4c535ec6bb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b9ee09d5e849591f17d98c078033dadea967293","name":"https://git.kernel.org/stable/c/0b9ee09d5e849591f17d98c078033dadea967293","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2015038195939eac54a1ee83c9d98ef1a8ccbbce","name":"https://git.kernel.org/stable/c/2015038195939eac54a1ee83c9d98ef1a8ccbbce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f92a285db7ff6e598591ccbfb551be155c5f4d57","name":"https://git.kernel.org/stable/c/f92a285db7ff6e598591ccbfb551be155c5f4d57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3523e53ff95f1837ec3f57ff7558532bcb2661b7","name":"https://git.kernel.org/stable/c/3523e53ff95f1837ec3f57ff7558532bcb2661b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0d64bc200ebe4f275b27438c6e593903e0b16fe1","name":"https://git.kernel.org/stable/c/0d64bc200ebe4f275b27438c6e593903e0b16fe1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/13e91fd076306f5d0cdfa14f53d69e37274723c4","name":"https://git.kernel.org/stable/c/13e91fd076306f5d0cdfa14f53d69e37274723c4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53186","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53186","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected aef9ec39c47f0cece886ddd6b53c440321e0b2a6 3889517c2ec7f364914aea8209abfff735f7ecde git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected aef9ec39c47f0cece886ddd6b53c440321e0b2a6 ed77cc819ad631264787cade5ae5ec4c535ec6bb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected aef9ec39c47f0cece886ddd6b53c440321e0b2a6 0b9ee09d5e849591f17d98c078033dadea967293 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected aef9ec39c47f0cece886ddd6b53c440321e0b2a6 0d64bc200ebe4f275b27438c6e593903e0b16fe1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53186","cve":"CVE-2026-53186","epss":"0.001840000","percentile":"0.082230000","score_date":"2026-06-27","updated_at":"2026-06-28 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the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srp: bound SRP_RSP sense copy by the received length\n\nsrp_process_rsp() copies sense data from rsp->data + resp_data_len,\nwhere resp_data_len is the full 32-bit value supplied by the SRP target\nand is never checked against the number of bytes actually received\n(wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSIZE, so\nat most 96 bytes are copied, but the source offset is not bounded.\n\nA malicious or compromised SRP target on the InfiniBand/RoCE fabric that\nthe initiator has logged into can return an SRP_RSP with\nSRP_RSP_FLAG_SNSVALID set and a large resp_data_len. The receive buffer\nis allocated at the target-chosen max_ti_iu_len, so the source of the\nsense copy lands past the bytes actually received; with resp_data_len\nnear 0xFFFFFFFF it is gigabytes past the buffer and the read faults.\n\nCopy the sense data only if it has not been truncated, that is, only if\nthe response header, the response data, and the sense region fit within\nthe bytes actually received; otherwise drop the sense and log. The\nin-tree iSER and NVMe-RDMA receive paths already bound their parse by\nwc->byte_len; this brings ib_srp into line with them."}],"metrics":[{"cvssV3_1":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:40:01.569Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3889517c2ec7f364914aea8209abfff735f7ecde"},{"url":"https://git.kernel.org/stable/c/ed77cc819ad631264787cade5ae5ec4c535ec6bb"},{"url":"https://git.kernel.org/stable/c/0b9ee09d5e849591f17d98c078033dadea967293"},{"url":"https://git.kernel.org/stable/c/0d64bc200ebe4f275b27438c6e593903e0b16fe1"},{"url":"https://git.kernel.org/stable/c/2015038195939eac54a1ee83c9d98ef1a8ccbbce"},{"url":"https://git.kernel.org/stable/c/f92a285db7ff6e598591ccbfb551be155c5f4d57"},{"url":"https://git.kernel.org/stable/c/3523e53ff95f1837ec3f57ff7558532bcb2661b7"},{"url":"https://git.kernel.org/stable/c/13e91fd076306f5d0cdfa14f53d69e37274723c4"}],"title":"RDMA/srp: bound SRP_RSP sense copy by the received length","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53186","datePublished":"2026-06-25T08:38:59.508Z","dateReserved":"2026-06-09T07:44:35.390Z","dateUpdated":"2026-06-28T06:40:01.569Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:36","lastModifiedDate":"2026-06-28 08:16:37","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53186","Ordinal":"1","Title":"RDMA/srp: bound SRP_RSP sense copy by the received length","CVE":"CVE-2026-53186","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53186","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srp: bound SRP_RSP sense copy by the received length\n\nsrp_process_rsp() copies sense data from rsp->data + resp_data_len,\nwhere resp_data_len is the full 32-bit value supplied by the SRP target\nand is never checked against the number of bytes actually received\n(wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSIZE, so\nat most 96 bytes are copied, but the source offset is not bounded.\n\nA malicious or compromised SRP target on the InfiniBand/RoCE fabric that\nthe initiator has logged into can return an SRP_RSP with\nSRP_RSP_FLAG_SNSVALID set and a large resp_data_len. The receive buffer\nis allocated at the target-chosen max_ti_iu_len, so the source of the\nsense copy lands past the bytes actually received; with resp_data_len\nnear 0xFFFFFFFF it is gigabytes past the buffer and the read faults.\n\nCopy the sense data only if it has not been truncated, that is, only if\nthe response header, the response data, and the sense region fit within\nthe bytes actually received; otherwise drop the sense and log. The\nin-tree iSER and NVMe-RDMA receive paths already bound their parse by\nwc->byte_len; this brings ib_srp into line with them.","Type":"Description","Title":"RDMA/srp: bound SRP_RSP sense copy by the received length"}]}}}