{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31514",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.107Z",
        "datePublished": "2026-04-22T13:54:31.531Z",
        "dateUpdated": "2026-05-11T22:10:16.061Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:10:16.061Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: set fileio bio failed in short read case\n\nFor file-backed mount, IO requests are handled by vfs_iocb_iter_read().\nHowever, it can be interrupted by SIGKILL, returning the number of\nbytes actually copied. Unused folios in bio are unexpectedly marked\nas uptodate.\n\n  vfs_read\n    filemap_read\n      filemap_get_pages\n        filemap_readahead\n          erofs_fileio_readahead\n            erofs_fileio_rq_submit\n              vfs_iocb_iter_read\n                filemap_read\n                  filemap_get_pages  <= detect signal\n              erofs_fileio_ki_complete  <= set all folios uptodate\n\nThis patch addresses this by setting short read bio with an error\ndirectly."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/erofs/fileio.c"
                    ],
                    "versions": [
                        {
                            "version": "8d582d65d20bb4796db01b19e86909ad68cb337b",
                            "lessThan": "d1ba7d6b3cd1757b108d7b6856c92ae661d6c323",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e49abde0ffc382a967b24f326d1614ac3bb06a94",
                            "lessThan": "5cf3972c8221abdb1b464a14ccf8103d840b9085",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe4039034dcdf584afbf763787909e28e92a4927",
                            "lessThan": "5a5f23ef5431639db1ac3a0b274aef3a84cc413c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc804a8d7e865ef47fb7edcaf5e77d18bf444ebc",
                            "lessThan": "eade54040384f54b7fb330e4b0975c5734850b3c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/erofs/fileio.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12.75",
                            "lessThan": "6.12.80",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.14",
                            "lessThan": "6.18.21",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.4",
                            "lessThan": "6.19.11",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.75",
                                    "versionEndExcluding": "6.12.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.14",
                                    "versionEndExcluding": "6.18.21"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.4",
                                    "versionEndExcluding": "6.19.11"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d1ba7d6b3cd1757b108d7b6856c92ae661d6c323"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5cf3972c8221abdb1b464a14ccf8103d840b9085"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5a5f23ef5431639db1ac3a0b274aef3a84cc413c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eade54040384f54b7fb330e4b0975c5734850b3c"
                }
            ],
            "title": "erofs: set fileio bio failed in short read case",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}