{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80790",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.793Z",
        "datePublished": "2026-09-04T15:13:02.193Z",
        "dateUpdated": "2026-10-19T08:43:43.513Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:43:43.513Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-fc: fix invalid free in LS IOD error path\n\nnvmet_fc_alloc_ls_iodlist() advances iod while initializing the LS IOD\narray. If an rqstbuf allocation or response buffer DMA mapping fails,\nthe unwind loop decrements iod past the start of the array. The final\nkfree(iod) therefore frees an address before the allocated object.\n\nThis can be reproduced with nvme-fcloop and failslab by setting\nfail-nth to 6 before creating a target port. KASAN reports:\n\n  BUG: KASAN: invalid-free in nvmet_fc_register_targetport\n  Free of addr ffff88816cf8ff48 by task nvmet_fail_nth/9552\n\nFree the original allocation base stored in tgtport->iod instead. With\nthis fix applied, the same sysfs write with fail-nth=6 returns -ENOMEM\nwithout any KASAN report."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/target/fc.c"
                    ],
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                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
                            "lessThan": "b189c6e408896ccc23d2e76d7738847cdebf1532",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
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                            "status": "affected",
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                            "lessThan": "1a8f007faefe8c226ec65896589f8d59b0a8d5a5",
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                            "status": "affected",
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                            "lessThan": "371fb1bf902adaa59be32bd7e904a5317e604fd0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
                            "lessThan": "8bce9cd08aae4283badf8ddc11fbb6f57b75a81e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
                            "lessThan": "bb9489f0dce58da730d3479588d6710d7a2c1b45",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
                            "lessThan": "94334ea92f4d7535f66f86e33681efa94827eddc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
                            "lessThan": "ba98d6796d12258e837ece065d2ecb59d76ce4ff",
                            "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/fc.c"
                    ],
                    "versions": [
                        {
                            "version": "4.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.10",
                            "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": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.10.267"
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                                {
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b189c6e408896ccc23d2e76d7738847cdebf1532"
                },
                {
                    "url": "https://git.kernel.org/stable/c/449e9c4f8db84ad9d9bb288029b230bcf590faa2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1a8f007faefe8c226ec65896589f8d59b0a8d5a5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d094582cce9c08516d714e7436a8f3b9211dda90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/371fb1bf902adaa59be32bd7e904a5317e604fd0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8bce9cd08aae4283badf8ddc11fbb6f57b75a81e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bb9489f0dce58da730d3479588d6710d7a2c1b45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/94334ea92f4d7535f66f86e33681efa94827eddc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ba98d6796d12258e837ece065d2ecb59d76ce4ff"
                }
            ],
            "title": "nvmet-fc: fix invalid free in LS IOD error path",
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}