{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53820",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-08T23:58:35.278Z",
        "datePublished": "2025-12-09T01:24:29.417Z",
        "dateUpdated": "2026-05-23T15:31:11.178Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:31:11.178Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nloop: loop_set_status_from_info() check before assignment\n\nIn loop_set_status_from_info(), lo->lo_offset and lo->lo_sizelimit should\nbe checked before reassignment, because if an overflow error occurs, the\noriginal correct value will be changed to the wrong value, and it will not\nbe changed back.\n\nMore, the original patch did not solve the problem, the value was set and\nioctl returned an error, but the subsequent io used the value in the loop\ndriver, which still caused an alarm:\n\nloop_handle_cmd\n do_req_filebacked\n  loff_t pos = ((loff_t) blk_rq_pos(rq) << 9) + lo->lo_offset;\n  lo_rw_aio\n   cmd->iocb.ki_pos = pos"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/block/loop.c"
                    ],
                    "versions": [
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                            "lessThan": "6bdf4e6dfb60cbb6121ccf027d97ed2ec97c0bcb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "13b2856037a651ba3ab4a8b25ecab3e791926da3",
                            "lessThan": "2ea7077748e5d7cc64f1c31342c802fe66ea7426",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b40877b8562c5720d0a7fce20729f56b75a3dede",
                            "lessThan": "861021710bba9dfa0749a3c209a6c1773208b1f1",
                            "status": "affected",
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                        },
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                            "status": "affected",
                            "versionType": "git"
                        },
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                            "version": "0455bef69028c65065f16bb04635591b2374249b",
                            "lessThan": "3e7d0968203d668af6036b9f9199c7b62c8a3581",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "version": "c490a0b5a4f36da3918181a8acdc6991d967c5f3",
                            "lessThan": "4be26d553a3f1d4f54f25353d1496c562002126d",
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                        },
                        {
                            "version": "18e28817cb516b39de6281f6db9b0618b2cc7b42",
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                        },
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9be7fa7ead18a48940df7b59d993bbc8b9055c15",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.19.257",
                            "lessThan": "4.19.312",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.212",
                            "lessThan": "5.4.274",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.140",
                            "lessThan": "5.10.173",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.64",
                            "lessThan": "5.15.100",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.327",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.292",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.6",
                            "lessThan": "5.20",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/block/loop.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.312",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.274",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.173",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.100",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.18",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.5",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
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                            "operator": "OR",
                            "negate": false,
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6bdf4e6dfb60cbb6121ccf027d97ed2ec97c0bcb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/832580af82ace363205039a8e7c4ef04552ccc1a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2ea7077748e5d7cc64f1c31342c802fe66ea7426"
                },
                {
                    "url": "https://git.kernel.org/stable/c/861021710bba9dfa0749a3c209a6c1773208b1f1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c79a924ed6afac1708dfd370ba66bcf6a852ced6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3e7d0968203d668af6036b9f9199c7b62c8a3581"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4be26d553a3f1d4f54f25353d1496c562002126d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/258809bf22bf71d53247856f374f2b1d055f2fd4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9f6ad5d533d1c71e51bdd06a5712c4fbc8768dfa"
                }
            ],
            "title": "loop: loop_set_status_from_info() check before assignment",
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