{"id":"CVE-2026-23136","revision":null,"records":[{"revision":"1af80f93a5f14e1f95a2538f35776218","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23136","aliases":[],"title":"libceph: reset sparse-read state in osd_fault()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: reset sparse-read state in osd_fault()\n\nWhen a fault occurs, the connection is abandoned, reestablished, and any\npending operations are retried. The OSD client tracks the progress of a\nsparse-read reply using a separate state machine, largely independent of\nthe messenger's state.\n\nIf a connection is lost mid-payload or the sparse-read state machine\nreturns an error, the sparse-read state is not reset. The OSD client\nwill then interpret the beginning of a new reply as the continuation of\nthe old one. If this makes the sparse-read machinery enter a failure\nstate, it may never recover, producing loops like:\n\n  libceph:  [0] got 0 extents\n  libceph: data len 142248331 != extent len 0\n  libceph: osd0 (1)...:6801 socket error on read\n  libceph: data len 142248331 != extent len 0\n  libceph: osd0 (1)...:6801 socket error on read\n\nTherefore, reset the sparse-read state in osd_fault(), ensuring retries\nstart from a clean state.","state":0,"publishedAt":"2026-02-14T15:22:21.952+00:00","modifiedAt":"2026-10-19T18:25:32.994+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ceph/osd_client.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f628d799972799023d32c2542bb2639eb8c4f84e\",\n                            \"lessThan\": \"90a60fe61908afa0eaf7f8fcf1421b9b50e5f7ff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f628d799972799023d32c2542bb2639eb8c4f84e\",\n                            \"lessThan\": \"e94075e950a6598e710b9f7dffea5aa388f40313\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f628d799972799023d32c2542bb2639eb8c4f84e\",\n                            \"lessThan\": \"10b7c72810364226f7b27916ea3e2a4f870bc04b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f628d799972799023d32c2542bb2639eb8c4f84e\",\n                            \"lessThan\": \"11194b416ef95012c2cfe5f546d71af07b639e93\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ceph/osd_client.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.121\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.66\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.6\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/90a60fe61908afa0eaf7f8fcf1421b9b50e5f7ff","https://git.kernel.org/stable/c/e94075e950a6598e710b9f7dffea5aa388f40313","https://git.kernel.org/stable/c/10b7c72810364226f7b27916ea3e2a4f870bc04b","https://git.kernel.org/stable/c/11194b416ef95012c2cfe5f546d71af07b639e93"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23136","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23136","identifiers":["CVE-2026-23136"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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