{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53431", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53431", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-18T16:04:11.748Z", "updatedAt": "2026-08-05T09:14:06.042Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "scsi: ses: Handle enclosure with just a primary component gracefully", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ses: Handle enclosure with just a primary component gracefully\n\nThis reverts commit 3fe97ff3d949 (\"scsi: ses: Don't attach if enclosure\nhas no components\") and introduces proper handling of case where there are\nno detected secondary components, but primary component (enumerated in\nnum_enclosures) does exist. That fix was originally proposed by Ding Hui\n.\n\nCompletely ignoring devices that have one primary enclosure and no\nsecondary one results in ses_intf_add() bailing completely\n\n\tscsi 2:0:0:254: enclosure has no enumerated components\n scsi 2:0:0:254: Failed to bind enclosure -12ven in valid configurations such\n\neven on valid configurations with 1 primary and 0 secondary enclosures as\nbelow:\n\n\t# sg_ses /dev/sg0\n\t 3PARdata SES 3321\n\tSupported diagnostic pages:\n\t Supported Diagnostic Pages [sdp] [0x0]\n\t Configuration (SES) [cf] [0x1]\n\t Short Enclosure Status (SES) [ses] [0x8]\n\t# sg_ses -p cf /dev/sg0\n\t 3PARdata SES 3321\n\tConfiguration diagnostic page:\n\t number of secondary subenclosures: 0\n\t generation code: 0x0\n\t enclosure descriptor list\n\t Subenclosure identifier: 0 [primary]\n\t relative ES process id: 0, number of ES processes: 1\n\t number of type descriptor headers: 1\n\t enclosure logical identifier (hex): 20000002ac02068d\n\t enclosure vendor: 3PARdata product: VV rev: 3321\n\t type descriptor header and text list\n\t Element type: Unspecified, subenclosure id: 0\n\t number of possible elements: 1\n\nThe changelog for the original fix follows\n\n=====\nWe can get a crash when disconnecting the iSCSI session,\nthe call trace like this:\n\n [ffff00002a00fb70] kfree at ffff00000830e224\n [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4\n [ffff00002a00fbd0] device_del at ffff0000086b6a98\n [ffff00002a00fc50] device_unregister at ffff0000086b6d58\n [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c\n [ffff00002a00fca0] scsi_remove_device at ffff000008706134\n [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4\n [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0\n [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4\n [ffff00002a00fdb0] process_one_work at ffff00000810f35c\n [ffff00002a00fe00] worker_thread at ffff00000810f648\n [ffff00002a00fe70] kthread at ffff000008116e98\n\nIn ses_intf_add, components count could be 0, and kcalloc 0 size scomp,\nbut not saved in edev->component[i].scratch\n\nIn this situation, edev->component[0].scratch is an invalid pointer,\nwhen kfree it in ses_intf_remove_enclosure, a crash like above would happen\nThe call trace also could be other random cases when kfree cannot catch\nthe invalid pointer\n\nWe should not use edev->component[] array when the components count is 0\nWe also need check index when use edev->component[] array in\nses_enclosure_data_process\n=====", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "4e7c498c3713b09bef20c76c7319555637e8bbd5" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "110d425cdfb15006f3c4fde5264e786a247b6b36" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "176d7345b89ced72020a313bfa4e7f345d1c3aed" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "05143d90ac90b7abc6692285895a1ef460e008ee" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "f8e702c54413eee2d8f94f61d18adadac7c87e87" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "eabc4872f172ecb8dd8536bc366a51868154a450" }, { "version": "9927c68864e9c39cc317b4f559309ba29e642168", "status": "affected", "versionType": "git", "lessThan": "c8e22b7a1694bb8d025ea636816472739d859145" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.25", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.25" }, { "version": "4.19.281", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.241", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.178", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.108", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.25", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.12", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }