{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80788",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.793Z",
        "datePublished": "2026-09-04T15:12:59.912Z",
        "dateUpdated": "2026-10-19T08:43:40.496Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:43:40.496Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations\n\nWhen fuzzing the nvme target code, I tripped a kernel warning in\nnvmet_tcp_map_data() because the length passed into the allocator is\ncontrolled by the remote initiator.\n\nA remote initiator that sends a command with an SGL claiming a huge\nnumber, can create a scatterlist and iovec allocation of over 1 million\nentries, which causes the backing kmalloc call to exceed MAX_PAGE_ORDER\nand then the page allocator will trip on a WARN_ON_ONCE_GFP() message:\n\n  WARNING: mm/page_alloc.c:5280 __alloc_frozen_pages_noprof\n  Workqueue: nvmet_tcp_wq nvmet_tcp_io_work\n  ...\n  sgl_alloc_order\n  nvmet_tcp_map_data\n  nvmet_tcp_try_recv_pdu\n\nAs it's never good to trip a kernel warning remotely due to many systems\nhaving panic-on-warn enabled, let's silence it by just add GFP_NOWARN to\nthe allocation flags."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/target/tcp.c"
                    ],
                    "versions": [
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "8d01f0d0e96485e39ad89b859ef85e1dc3020465",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "7b6a54d4e7b0da423c2b53ed293fd36b16c0b19e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "e7077e6c45423dd2bb7de7b5fc4b018a8e6c4741",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "86cc450022473c4a29b43a09f3ec22a9ef566dac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "c509f20be1cabda3087810bb2d658d66b3f31f35",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "9c95f7e66c62ee6c6abedcf1c04311f430ff5833",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "7fd6da0f28932442b51658bac4ff55565ca9b377",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "9b770e40bc00381e5ebf53653de5776773415be3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30",
                            "lessThan": "737a3b535247226f6e1a7988fd9d6e63e7d6fc71",
                            "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/nvme/target/tcp.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.267",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.218",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.185",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.154",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.106",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.47",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.11",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.1",
                            "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": "5.0",
                                    "versionEndExcluding": "5.10.267"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "5.15.218"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.1.185"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.6.154"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.12.106"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.18.47"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.1.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.2.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8d01f0d0e96485e39ad89b859ef85e1dc3020465"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b6a54d4e7b0da423c2b53ed293fd36b16c0b19e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e7077e6c45423dd2bb7de7b5fc4b018a8e6c4741"
                },
                {
                    "url": "https://git.kernel.org/stable/c/86cc450022473c4a29b43a09f3ec22a9ef566dac"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c509f20be1cabda3087810bb2d658d66b3f31f35"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9c95f7e66c62ee6c6abedcf1c04311f430ff5833"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7fd6da0f28932442b51658bac4ff55565ca9b377"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9b770e40bc00381e5ebf53653de5776773415be3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/737a3b535247226f6e1a7988fd9d6e63e7d6fc71"
                }
            ],
            "title": "nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}