{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-99154",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.397Z",
        "datePublished": "2026-10-28T10:35:08.968Z",
        "dateUpdated": "2026-10-30T12:42:20.400Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-30T12:42:20.400Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libiscsi: Reject a negative task index from parse_pdu_itt\n\nA transport that implements parse_pdu_itt hands libiscsi an index taken\nfrom the PDU, and both lookups bound it from above only:\n\n      if (i >= session->cmds_max)\n\ni and cmds_max are both int, so a negative index passes and\nsession->cmds[i] is read from before the array.\n\nbe2iscsi produces one. beiscsi_parse_pdu() assigns the raw tag,\n\n      *index = (int)itt;\n\nand beiscsi_complete_pdu() forwards an unsolicited NOP-In from the\nhardware async ring without replacing its ITT, so the value is the\ntarget's. It also reports the session's own age rather than the one in\nthe tag, which leaves the age comparison in iscsi_verify_itt() with\nnothing to reject.\n\nBound the index from below in both lookups."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/scsi/libiscsi.c"
                    ],
                    "versions": [
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "24bd9ba431b2daa263f3551bc2f09f6b4487f5ae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "f8fabe1fe044f86abc42194b8f86dfd70212115f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "e896a97f336c5edfc13066b57ed431cb3f64e68c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "6200fb2de579f268742a77b0f3d823cb0a8b1947",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "0eb06ebbbecb122f0df9a1f7f623f5255be741ed",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "6cadfa6f1f5896632d4223d3b7addb2a29fea74e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "35b60549a956237488c89a2d85352e026e7d55b7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfead3b2cb4607c71831423c3ee97d22cd0c9dcb",
                            "lessThan": "8ee2a09a1dbb257c9e828ad2497f8e4832dfb142",
                            "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/libiscsi.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.33",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.33",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.273",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.224",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.161",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.115",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.59",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.13",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "2.6.33",
                                    "versionEndExcluding": "5.10.273"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "5.15.224"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.1.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.6.161"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.12.115"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.18.59"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "7.2.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/24bd9ba431b2daa263f3551bc2f09f6b4487f5ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f8fabe1fe044f86abc42194b8f86dfd70212115f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e896a97f336c5edfc13066b57ed431cb3f64e68c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6200fb2de579f268742a77b0f3d823cb0a8b1947"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0eb06ebbbecb122f0df9a1f7f623f5255be741ed"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6cadfa6f1f5896632d4223d3b7addb2a29fea74e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/35b60549a956237488c89a2d85352e026e7d55b7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8ee2a09a1dbb257c9e828ad2497f8e4832dfb142"
                }
            ],
            "title": "scsi: libiscsi: Reject a negative task index from parse_pdu_itt",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}