{"api_version":"1","generated_at":"2026-10-05T17:59:00+00:00","cve":"CVE-2026-89846","urls":{"html":"https://cve.report/CVE-2026-89846","api":"https://cve.report/api/cve/CVE-2026-89846.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89846","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89846"},"summary":{"title":"scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_info_len:\n\n\tif (IS_FWI2_CAPABLE(ha)) {\n\t\tsense_data += rsp_info_len;\n\t\tpar_sense_len -= rsp_info_len;\n\t}\n\nrsp_info_len is a 32-bit value taken directly from the target's FCP\nresponse (sf.rsp_data_len), while par_sense_len is the IOCB data area\nsize (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target\nreporting an rsp_info_len larger than par_sense_len makes the unsigned\nsubtraction underflow to a huge value and advances sense_data out of\nbounds.\n\nThe underflowed par_sense_len then defeats the cap in\nqla2x00_handle_sense():\n\n\tif (sense_len > par_sense_len)\n\t\tsense_len = par_sense_len;\n\tmemcpy(cp->sense_buffer, sense_data, sense_len);\n\nso the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the\nout-of-bounds sense_data pointer, leaking adjacent response-ring/heap\nmemory into the command's sense buffer.\n\nClamp rsp_info_len to par_sense_len before the subtraction so\npar_sense_len can never underflow and sense_data stays within the IOCB\ndata area. The fix sits before the comp_status switch, covering both\nqla2x00_handle_sense() call sites.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:16:51","updated_at":"2026-09-16 15:18:12"},"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/e57ace988bda5693f7b3645f652ea4b4220870ee","name":"https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda","name":"https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f","name":"https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985","name":"https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e","name":"https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","name":"https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815","name":"https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb","name":"https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89846","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89846","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 125b12861c726e58448bb95d55b04851fb131d1f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 e57ace988bda5693f7b3645f652ea4b4220870ee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 6b08c0cb110a1fba92f99d655020198489699815 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 be75ab791c9b3baca66c70ce03443afebc83acda 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 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/scsi/qla2xxx/qla_isr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"125b12861c726e58448bb95d55b04851fb131d1f","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"e57ace988bda5693f7b3645f652ea4b4220870ee","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"6b08c0cb110a1fba92f99d655020198489699815","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"be75ab791c9b3baca66c70ce03443afebc83acda","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"d7f7746ff031ae45724881261804f4bf5317c985","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"f6e8977bce887481b2b2b0e2e14a791270741cfb","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"},{"lessThan":"ca6d880d6c70cb7946e7b3e05d7285f271b6d99e","status":"affected","version":"5544213be7b4fb693730106a6d70a8cc1aa7cdf6","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/scsi/qla2xxx/qla_isr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.36"},{"lessThan":"2.6.36","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":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","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":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"2.6.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.36","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_info_len:\n\n\tif (IS_FWI2_CAPABLE(ha)) {\n\t\tsense_data += rsp_info_len;\n\t\tpar_sense_len -= rsp_info_len;\n\t}\n\nrsp_info_len is a 32-bit value taken directly from the target's FCP\nresponse (sf.rsp_data_len), while par_sense_len is the IOCB data area\nsize (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target\nreporting an rsp_info_len larger than par_sense_len makes the unsigned\nsubtraction underflow to a huge value and advances sense_data out of\nbounds.\n\nThe underflowed par_sense_len then defeats the cap in\nqla2x00_handle_sense():\n\n\tif (sense_len > par_sense_len)\n\t\tsense_len = par_sense_len;\n\tmemcpy(cp->sense_buffer, sense_data, sense_len);\n\nso the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the\nout-of-bounds sense_data pointer, leaking adjacent response-ring/heap\nmemory into the command's sense buffer.\n\nClamp rsp_info_len to par_sense_len before the subtraction so\npar_sense_len can never underflow and sense_data stays within the IOCB\ndata area. The fix sits before the comp_status switch, covering both\nqla2x00_handle_sense() call sites."}],"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"},"scenarios":[{"lang":"en","value":"AV:N - qla2xxx builds initiator status IOCBs from a remote Fibre Channel or FCoE target's FCP_RSP; QLogic CNAs speak FCoE and SAN fabrics are stretched across sites via FCIP/inter-fabric routing, so a malicious or compromised target delivers the crafted rsp_data_len over the storage network with no local access.\nAC:L - A hostile target fully controls FCP_RSP (SS_RESPONSE_INFO_LEN_VALID, rsp_data_len, sense_len, CHECK CONDITION, rsp_info[3]==0) and can return them on ordinary initiator I/O such as INQUIRY during fabric scan; no race, rare config, or victim state beyond a FWI2-capable HBA is required.\nPR:N - Completions are handled in the HBA interrupt/response-queue path (qla24xx_process_response_queue to qla2x00_status_entry) with no Linux credential or capability check; the attacker only needs to act as an FC/FCoE target on the fabric.\nUI:N - Once the target is visible on the fabric, the SCSI midlayer automatically issues commands (scan, path checks, mounted-filesystem I/O) whose STATUS_TYPE completions take the vulnerable path; no user mount, open, or other interactive step is required at exploit time.\nS:U - The out-of-bounds read and any resulting oops stay inside the host kernel that owns the qla2xxx driver and do not cross a VM, IOMMU, or other separate security authority.\nC:H - Attacker-controlled 32-bit rsp_info_len advances sense_data out of the 28-byte IOCB data area and underflows par_sense_len so qla2x00_handle_sense() copies up to SCSI_SENSE_BUFFERSIZE (96) bytes of adjacent response-ring or kernel memory into the command sense buffer, which userspace can read via SCSI completion, SG_IO, and BSG.\nI:N - The memcpy destination is the in-bounds SCSI sense buffer already capped at SCSI_SENSE_BUFFERSIZE; this is a source over-read only, with no out-of-bounds write, use-after-free, or control-flow hijack primitive.\nA:H - Adding a 32-bit attacker-chosen rsp_info_len to sense_data yields a wild kernel pointer; memcpy from an unmapped address in the interrupt-context response-queue path oopses or panics the host, and the target can repeat this on every command."}]}],"providerMetadata":{"dateUpdated":"2026-09-16T14:39:14.466Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f"},{"url":"https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee"},{"url":"https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815"},{"url":"https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda"},{"url":"https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9"},{"url":"https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985"},{"url":"https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb"},{"url":"https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e"}],"title":"scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89846","datePublished":"2026-09-16T10:31:20.306Z","dateReserved":"2026-09-11T19:38:34.770Z","dateUpdated":"2026-09-16T14:39:14.466Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:16:51","lastModifiedDate":"2026-09-16 15:18:12","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":"89846","Ordinal":"1","Title":"scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read","CVE":"CVE-2026-89846","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89846","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_info_len:\n\n\tif (IS_FWI2_CAPABLE(ha)) {\n\t\tsense_data += rsp_info_len;\n\t\tpar_sense_len -= rsp_info_len;\n\t}\n\nrsp_info_len is a 32-bit value taken directly from the target's FCP\nresponse (sf.rsp_data_len), while par_sense_len is the IOCB data area\nsize (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target\nreporting an rsp_info_len larger than par_sense_len makes the unsigned\nsubtraction underflow to a huge value and advances sense_data out of\nbounds.\n\nThe underflowed par_sense_len then defeats the cap in\nqla2x00_handle_sense():\n\n\tif (sense_len > par_sense_len)\n\t\tsense_len = par_sense_len;\n\tmemcpy(cp->sense_buffer, sense_data, sense_len);\n\nso the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the\nout-of-bounds sense_data pointer, leaking adjacent response-ring/heap\nmemory into the command's sense buffer.\n\nClamp rsp_info_len to par_sense_len before the subtraction so\npar_sense_len can never underflow and sense_data stays within the IOCB\ndata area. The fix sits before the comp_status switch, covering both\nqla2x00_handle_sense() call sites.","Type":"Description","Title":"scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read"}]}}}