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caused only by two impossible conditions:\n\n- at first the search key is set up to look for a chunk tree item, with\n offset -1, this is an inexact search and the key->offset will contain\n the correct offset upon a successful search, a valid chunk tree item\n cannot have an offset -1\n\n- after first successful search, the found_key corresponds to a chunk\n item, the offset is decremented by 1 before the next loop, it's\n impossible to find a chunk item there due to alignment and size\n constraints"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:25:20.075Z"}}}, "cveMetadata": {"cveId": "CVE-2024-35936", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:25:20.075Z", "dateReserved": "2024-05-17T13:50:33.130Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-19T10:10:42.967Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()\n\nThe unhandled case in btrfs_relocate_sys_chunks() loop is a corruption,\nas it could be caused only by two impossible conditions:\n\n- at first the search key is set up to look for a chunk tree item, with\n offset -1, this is an inexact search and the key->offset will contain\n the correct offset upon a successful search, a valid chunk tree item\n cannot have an offset -1\n\n- after first successful search, the found_key corresponds to a chunk\n item, the offset is decremented by 1 before the next loop, it's\n impossible to find a chunk item there due to alignment and size\n constraints"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: maneja el error de b\u00fasqueda del \u00e1rbol de fragmentos en btrfs_relocate_sys_chunks() El caso no controlado en el bucle btrfs_relocate_sys_chunks() es una corrupci\u00f3n, ya que solo podr\u00eda ser causado por dos condiciones imposibles: - al principio el La clave de b\u00fasqueda est\u00e1 configurada para buscar un elemento del \u00e1rbol de fragmentos, con desplazamiento -1, esta es una b\u00fasqueda inexacta y la clave->desplazamiento contendr\u00e1 el desplazamiento correcto tras una b\u00fasqueda exitosa, un elemento de \u00e1rbol de fragmentos v\u00e1lido no puede tener un desplazamiento -1 - despu\u00e9s de la primera b\u00fasqueda exitosa, found_key corresponde a un elemento fragmentado, el desplazamiento se reduce en 1 antes del siguiente ciclo, es imposible encontrar un elemento fragmentado all\u00ed debido a restricciones de alineaci\u00f3n y tama\u00f1o"}], "id": "CVE-2024-35936", "lastModified": "2024-11-05T10:16:54.840", "metrics": {}, "published": "2024-05-19T11:15:49.480", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d23b34c68c46cd225b55868bc8a269e3134816d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f9212cdbd005bc55f2b7422e7b560d9c02bd1da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/36c2a2863bc3896243eb724dc3fd4cf9aea633f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/576164bd01bd795f8b09fb194b493103506b33c9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7411055db5ce64f836aaffd422396af0075fdc99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/87299cdaae757f3f41212146cfb5b3af416b8385"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bebd9e0ff90034875c5dfe4bd514fd7055fc7a89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d1ffa4ae2d591fdd40471074e79954ec45f147f7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()", "id": "2281823", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281823"}, "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-460", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbtrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()\nThe unhandled case in btrfs_relocate_sys_chunks() loop is a corruption,\nas it could be caused only by two impossible conditions:\n- at first the search key is set up to look for a chunk tree item, with\noffset -1, this is an inexact search and the key->offset will contain\nthe correct offset upon a successful search, a valid chunk tree item\ncannot have an offset -1\n- after first successful search, the found_key corresponds to a chunk\nitem, the offset is decremented by 1 before the next loop, it's\nimpossible to find a chunk item there due to alignment and size\nconstraints", "A flaw was found in the Linux kernel\u2019s btrfs module. An unhandled chunk tree lookup error in the btrfs_relocate_sys_chunks function in the fs/btrfs/volumes.c file will cause a denial of service."], "name": "CVE-2024-35936", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-05-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35936\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35936\nhttps://lore.kernel.org/linux-cve-announce/2024051918-CVE-2024-35936-990c@gregkh/T"], "statement": "The btrfs module is not built in the kernel shipped in Red Hat Enterprise Linux 8 and 9, so it is not affected by this vulnerability.", "threat_severity": "Moderate", "upstream_fix": "kernel 4.19.312, kernel 5.4.274, kernel 5.10.215, kernel 5.15.155, kernel 6.1.86, kernel 6.6.27, kernel 6.8.6, kernel 6.9"}