{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90010", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.781Z", "datePublished": "2026-09-16T10:33:18.118Z", "dateUpdated": "2026-09-16T14:41:26.660Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-16T14:41:26.660Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bsg: Cap io_uring sense copy to max_response_len\n\nCompletion copied scmd->sense_len to the user response buffer without\nhonoring max_response_len. After a valid sense, the midlayer sets\nsense_len to the real length (up to SCSI_SENSE_BUFFERSIZE), so a smaller\nuser buffer was overrun."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - Reached only via IORING_OP_URING_CMD on a local /dev/bsg character device (bsg_fops.uring_cmd \u2192 bsg_uring_cmd \u2192 scsi_bsg_uring_cmd \u2192 scsi_bsg_uring_task_cb); per CNA guidance io_uring is Local, and no network or adjacent-radio path feeds SCSI sense completion.\nAC:L - The attacker controls the CDB, response pointer, and claimed max_response_len, and can reliably force CHECK CONDITION with an illegal-field or out-of-range READ/INQUIRY/TEST_UNIT_READY so the midlayer sets sense_len up to SCSI_SENSE_BUFFERSIZE (96) and the uncapped copy_to_user runs with no race.\nPR:L - bsg_open() has no capable() check and scsi_cmd_allowed() permits unprivileged read-class CDBs (INQUIRY, READ_*, TEST_UNIT_READY) without CAP_SYS_RAWIO; /dev/bsg nodes are routinely granted to disk/cdrom group members and uaccess-seated users on desktops, Android, and shared workstations.\nUI:N - The attacker opens /dev/bsg and submits the io_uring command from their own process; no separate victim action such as mounting a filesystem or attaching hardware is required.\nS:U - copy_to_user() writes past the caller-supplied userspace sense buffer in the submitting process and does not by itself corrupt kernel slab independently of that process or cross a VM, IOMMU, or sandbox boundary.\nC:H - Completion ignores max_response_len and copies up to 96 bytes of sense into adjacent userspace, a heap/stack overflow that can be turned into an arbitrary-read primitive against a privileged bsg/io_uring consumer rather than a bounded disclosure of intended sense data.\nI:H - scsi_bsg_uring_task_cb uses min(sense_len, SCSI_SENSE_BUFFERSIZE) instead of max_response_len, so a small user buffer is overrun by up to 96 bytes of sense, enabling adjacent heap/stack corruption and potential control-flow hijacking.\nA:H - The out-of-bounds write can crash the calling process or a storage-management consumer using a traditional 18/32-byte sense buffer, and CHECK CONDITION commands can be repeated to induce process termination."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/scsi_bsg.c"], "versions": [{"version": "7b6d3255e7f8c6df2d21504c47808e3ce84649ac", "lessThan": "5d326efc334ea21afd8161f6ca53e17de71948a9", "status": "affected", "versionType": "git"}, {"version": "7b6d3255e7f8c6df2d21504c47808e3ce84649ac", "lessThan": "ece06de726737e887dc0225c8283477624f8ae21", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/scsi_bsg.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5d326efc334ea21afd8161f6ca53e17de71948a9"}, {"url": "https://git.kernel.org/stable/c/ece06de726737e887dc0225c8283477624f8ae21"}], "title": "scsi: bsg: Cap io_uring sense copy to max_response_len", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/scsi_bsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5d326efc334ea21afd8161f6ca53e17de71948a9", "status": "affected", "version": "7b6d3255e7f8c6df2d21504c47808e3ce84649ac", "versionType": "git"}, {"lessThan": "ece06de726737e887dc0225c8283477624f8ae21", "status": "affected", "version": "7b6d3255e7f8c6df2d21504c47808e3ce84649ac", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/scsi_bsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bsg: Cap io_uring sense copy to max_response_len\n\nCompletion copied scmd->sense_len to the user response buffer without\nhonoring max_response_len. After a valid sense, the midlayer sets\nsense_len to the real length (up to SCSI_SENSE_BUFFERSIZE), so a smaller\nuser buffer was overrun."}], "id": "CVE-2026-90010", "lastModified": "2026-09-16T15:18:24.657", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-09-16T11:17:13.660", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d326efc334ea21afd8161f6ca53e17de71948a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ece06de726737e887dc0225c8283477624f8ae21"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

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