{"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": "2026-04-22T13:54:31.531Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-22T13:54:31.531Z"}, "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-31514", "lastModified": "2026-04-23T16:17:41.280", "metrics": {}, "published": "2026-04-22T14:16:50.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5a5f23ef5431639db1ac3a0b274aef3a84cc413c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5cf3972c8221abdb1b464a14ccf8103d840b9085"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d1ba7d6b3cd1757b108d7b6856c92ae661d6c323"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eade54040384f54b7fb330e4b0975c5734850b3c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: erofs: set fileio bio failed in short read case", "id": "2460656", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460656"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-364", "details": ["A flaw was found in the Linux kernel's erofs filesystem component. When an input/output (I/O) request for a file-backed mount is interrupted by a SIGKILL signal, the system incorrectly marks unused data blocks as up-to-date. This can lead to data integrity issues or the potential disclosure of stale or incorrect information to a local user."], "name": "CVE-2026-31514", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31514\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31514\nhttps://lore.kernel.org/linux-cve-announce/2026042209-CVE-2026-31514-510b@gregkh/T"], "threat_severity": "Low"}