{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2024-56584",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-27T14:03:06.001Z",
        "datePublished": "2024-12-27T14:50:52.735Z",
        "dateUpdated": "2026-05-11T20:55:17.165Z"
    },
    "containers": {
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                "shortName": "Linux",
                "dateUpdated": "2026-05-11T20:55:17.165Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/tctx: work around xa_store() allocation error issue\n\nsyzbot triggered the following WARN_ON:\n\nWARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51\n\nwhich is the\n\nWARN_ON_ONCE(!xa_empty(&tctx->xa));\n\nsanity check in __io_uring_free() when a io_uring_task is going through\nits final put. The syzbot test case includes injecting memory allocation\nfailures, and it very much looks like xa_store() can fail one of its\nmemory allocations and end up with ->head being non-NULL even though no\nentries exist in the xarray.\n\nUntil this issue gets sorted out, work around it by attempting to\niterate entries in our xarray, and WARN_ON_ONCE() if one is found."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "io_uring/tctx.c"
                    ],
                    "versions": [
                        {
                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "e05c070b401f6365c503e2b59f091331965c4fb9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "3a84fa784710990964c1e35df743851ab2863898",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "94ad56f61b873ffeebcc620d451eacfbdf9d40f0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "42882b583095dcf747da6e3af1daeff40e27033e",
                            "status": "affected",
                            "versionType": "git"
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                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "d5b2ddf1f90c7248eff9630b95895c8950f2f36d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b188cc1bb857a9d4701ae59aa7768b5124e262e",
                            "lessThan": "7eb75ce7527129d7f1fee6951566af409a37a1c4",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "io_uring/tctx.c"
                    ],
                    "versions": [
                        {
                            "version": "5.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.120",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.66",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.5",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13",
                            "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": "5.10.253"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "5.1",
                                    "versionEndExcluding": "6.13"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e05c070b401f6365c503e2b59f091331965c4fb9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3a84fa784710990964c1e35df743851ab2863898"
                },
                {
                    "url": "https://git.kernel.org/stable/c/94ad56f61b873ffeebcc620d451eacfbdf9d40f0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/42882b583095dcf747da6e3af1daeff40e27033e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d5b2ddf1f90c7248eff9630b95895c8950f2f36d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7eb75ce7527129d7f1fee6951566af409a37a1c4"
                }
            ],
            "title": "io_uring/tctx: work around xa_store() allocation error issue",
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        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
                    }
                ],
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                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T20:50:01.079Z"
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}