{"id":"CVE-2024-46690","summary":"nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease\n\nIt is not safe to dereference fl-\u003ec.flc_owner without first confirming\nfl-\u003efl_lmops is the expected manager.  nfsd4_deleg_getattr_conflict()\ntests fl_lmops but largely ignores the result and assumes that flc_owner\nis an nfs4_delegation anyway.  This is wrong.\n\nWith this patch we restore the \"!= &nfsd_lease_mng_ops\" case to behave\nas it did before the change mentioned below.  This is the same as the\ncurrent code, but without any reference to a possible delegation.","modified":"2026-08-12T03:51:35.500288493Z","published":"2024-09-13T05:29:20.368Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46690.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46690.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46690"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c5967721e1063648b0506481585ba7e2e49a075e"},{"fixed":"1b46a871e980e3daa16fd5e77539966492e8910a"},{"fixed":"40927f3d0972bf86357a32a5749be71a551241b6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46690.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.10.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46690.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}