{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49747", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:39:17.987Z", "datePublished": "2025-03-27T16:42:57.094Z", "dateUpdated": "2026-05-11T19:05:58.438Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:05:58.438Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs/zmap.c: Fix incorrect offset calculation\n\nEffective offset to add to length was being incorrectly calculated,\nwhich resulted in iomap->length being set to 0, triggering a WARN_ON\nin iomap_iter_done().\n\nFix that, and describe it in comments.\n\nThis was reported as a crash by syzbot under an issue about a warning\nencountered in iomap_iter_done(), but unrelated to erofs.\n\nC reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000\nKernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02\nDashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/erofs/zmap.c"], "versions": [{"version": "eadcd6b5a1eb39866ab8d8a3e4f2e51bc51a2350", "lessThan": "2144859229c1e74f52d3ea067338d314a83a8afb", "status": "affected", "versionType": "git"}, {"version": "eadcd6b5a1eb39866ab8d8a3e4f2e51bc51a2350", "lessThan": "9f31d8c889d9a4e47bfcc6c4537d0c9f89fe582c", "status": "affected", "versionType": "git"}, {"version": "eadcd6b5a1eb39866ab8d8a3e4f2e51bc51a2350", "lessThan": "6acd87d50998ef0afafc441613aeaf5a8f5c9eff", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/erofs/zmap.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.92", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.10", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2144859229c1e74f52d3ea067338d314a83a8afb"}, {"url": "https://git.kernel.org/stable/c/9f31d8c889d9a4e47bfcc6c4537d0c9f89fe582c"}, {"url": "https://git.kernel.org/stable/c/6acd87d50998ef0afafc441613aeaf5a8f5c9eff"}], "title": "erofs/zmap.c: Fix incorrect offset calculation", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CC24FFD4-3B7F-4D3F-B022-9C6314AEB133", "versionEndExcluding": "5.15.92", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "482D2612-A4D4-4A68-AC23-52F6BE89878B", "versionEndExcluding": "6.1.10", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*", "matchCriteriaId": "A127C155-689C-4F67-B146-44A57F4BFD85", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs/zmap.c: Fix incorrect offset calculation\n\nEffective offset to add to length was being incorrectly calculated,\nwhich resulted in iomap->length being set to 0, triggering a WARN_ON\nin iomap_iter_done().\n\nFix that, and describe it in comments.\n\nThis was reported as a crash by syzbot under an issue about a warning\nencountered in iomap_iter_done(), but unrelated to erofs.\n\nC reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000\nKernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02\nDashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs/zmap.c: Se corrigi\u00f3 el c\u00e1lculo incorrecto del desplazamiento. El desplazamiento efectivo para a\u00f1adir a length se calculaba incorrectamente, lo que provocaba que iomap->length se estableciera en 0, lo que activaba un WARN_ON en iomap_iter_done(). Se corrigi\u00f3 y se describi\u00f3 en los comentarios. syzbot report\u00f3 esto como un fallo en un problema relacionado con una advertencia encontrada en iomap_iter_done(), pero no relacionada con erofs. Reproductor C: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000 Configuraci\u00f3n del kernel: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02 Enlace del panel: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6"}], "id": "CVE-2022-49747", "lastModified": "2025-10-29T17:18:00.510", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-03-27T17:15:39.477", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2144859229c1e74f52d3ea067338d314a83a8afb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6acd87d50998ef0afafc441613aeaf5a8f5c9eff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9f31d8c889d9a4e47bfcc6c4537d0c9f89fe582c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: erofs/zmap.c: Fix incorrect offset calculation", "id": "2355435", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355435"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nerofs/zmap.c: Fix incorrect offset calculation\nEffective offset to add to length was being incorrectly calculated,\nwhich resulted in iomap->length being set to 0, triggering a WARN_ON\nin iomap_iter_done().\nFix that, and describe it in comments.\nThis was reported as a crash by syzbot under an issue about a warning\nencountered in iomap_iter_done(), but unrelated to erofs.\nC reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000\nKernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02\nDashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6"], "name": "CVE-2022-49747", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49747\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49747\nhttps://lore.kernel.org/linux-cve-announce/2025032759-CVE-2022-49747-f361@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T15:42:41.963529+00:00", "updated": "2025-07-12T15:42:41.963598+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}