{"id":"CVE-2025-71116","title":"libceph: make decode_pool() more resilient against corrupted osdmaps","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: make decode_pool() more resilient against corrupted osdmaps\n\nIf the osdmap is (maliciously) corrupted such that the encoded length\nof ceph_pg_pool envelope is …","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < d061be4c8040ffb1110d537654a038b8b6ad39d2","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 145d140abda80e33331c5781d6603014fa75d258","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < c82e39ff67353a5a6cbc07b786b8690bd2c45aaa","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < e927ab132b87ba3f076705fc2684d94b24201ed1","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 5d0d8c292531fe356c4e94dcfdf7d7212aca9957","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 2acb8517429ab42146c6c0ac1daed1f03d2fd125","Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 8c738512714e8c0aa18f8a10c072d5b01c83db39","Linux 3.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-10T20:42:27.725166Z"},"published":"2026-01-14","updated":"2026-10-19","sourceUpdated":"2026-10-19T18:15:14.284Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71116","references":[{"url":"https://git.kernel.org/stable/c/d061be4c8040ffb1110d537654a038b8b6ad39d2"},{"url":"https://git.kernel.org/stable/c/145d140abda80e33331c5781d6603014fa75d258"},{"url":"https://git.kernel.org/stable/c/c82e39ff67353a5a6cbc07b786b8690bd2c45aaa"},{"url":"https://git.kernel.org/stable/c/e927ab132b87ba3f076705fc2684d94b24201ed1"},{"url":"https://git.kernel.org/stable/c/5d0d8c292531fe356c4e94dcfdf7d7212aca9957"},{"url":"https://git.kernel.org/stable/c/2acb8517429ab42146c6c0ac1daed1f03d2fd125"},{"url":"https://git.kernel.org/stable/c/8c738512714e8c0aa18f8a10c072d5b01c83db39"}],"tags":["cve.org"],"epss":0.00378,"epssPercentile":0.30307,"ingestedAt":"2026-10-19T18:35:50.132Z","slug":"CVE-2025-71116","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: make decode_pool() more resilient against corrupted osdmaps\n\nIf the osdmap is (maliciously) corrupted such that the encoded length\nof ceph_pg_pool envelope is less than what is expected for a particular\nencoding version, out-of-bounds reads may ensue because the only bounds\ncheck that is there is based on that length value.\n\nThis patch adds explicit bounds checks for each field that is decoded\nor skipped.\n\n## Affected\n\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < d061be4c8040ffb1110d537654a038b8b6ad39d2`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 145d140abda80e33331c5781d6603014fa75d258`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < c82e39ff67353a5a6cbc07b786b8690bd2c45aaa`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < e927ab132b87ba3f076705fc2684d94b24201ed1`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 5d0d8c292531fe356c4e94dcfdf7d7212aca9957`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 2acb8517429ab42146c6c0ac1daed1f03d2fd125`\n- `Linux >= 4f6a7e5ee1393ec4b243b39dac9f36992d161540 < 8c738512714e8c0aa18f8a10c072d5b01c83db39`\n- `Linux 3.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}