{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89843",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.770Z",
        "datePublished": "2026-09-16T10:31:17.474Z",
        "dateUpdated": "2026-10-19T08:53:36.264Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:53:36.264Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak\n\nSeveral bsg handlers stage their request/reply in an uninitialized 256-byte\non-stack buffer (uint8_t bsg[DMA_POOL_SIZE]) and fill it via\nsg_copy_to_buffer(), which only copies as many bytes as the user-supplied\nrequest payload. When the request is shorter than the structure, the\nremainder of the buffer is left holding stale stack data.\n\nqla2x00_read_fru_status() and qla2x00_read_i2c() then copy the full\nstructure back to the reply payload with sg_copy_from_buffer(), leaking the\nuninitialized stack bytes to user space. The write/update paths do not copy\nthe buffer back, but can feed uninitialized fields to the device.\n\nZero the stack buffer at declaration in all five handlers, mirroring the\nheap kzalloc() approach, so short requests can no longer expose stale\nmemory."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/scsi/qla2xxx/qla_bsg.c"
                    ],
                    "versions": [
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "1c820d0900e4aacd5020b989159f6b4b2f7d0d6a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "26bc6a2c235a70bfc9b6de412600208aca820e20",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "5ab32dff910291b5e6bf6223f8a4003536c1800a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "947c6bfcf7f5ec924995bec43e3108b98c75b44e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "708c0ec1e09c52fee24b74ce9398bf3f8d1c83fd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "4fe5790674097897a1af1367d1e384f7e5a62fb7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "7881faf862ee301ecfe3adc0725bd2fa0021cd95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
                            "lessThan": "b93d3bb3afe1b44489927de1eb4e66e8536a5935",
                            "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/qla2xxx/qla_bsg.c"
                    ],
                    "versions": [
                        {
                            "version": "3.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.51",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "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": "3.2",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "6.18.51"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "7.2.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.2",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1c820d0900e4aacd5020b989159f6b4b2f7d0d6a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/26bc6a2c235a70bfc9b6de412600208aca820e20"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5ab32dff910291b5e6bf6223f8a4003536c1800a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/947c6bfcf7f5ec924995bec43e3108b98c75b44e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/708c0ec1e09c52fee24b74ce9398bf3f8d1c83fd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4fe5790674097897a1af1367d1e384f7e5a62fb7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7881faf862ee301ecfe3adc0725bd2fa0021cd95"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b93d3bb3afe1b44489927de1eb4e66e8536a5935"
                }
            ],
            "title": "scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}