{"id":"CVE-2025-22025","revision":"19b93020cb204942b6de465c9173f688","records":[{"revision":"19b93020cb204942b6de465c9173f688","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-22025","aliases":[],"title":"nfsd: put dl_stid if fail to queue dl_recall","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: put dl_stid if fail to queue dl_recall\n\nBefore calling nfsd4_run_cb to queue dl_recall to the callback_wq, we\nincrement the reference count of dl_stid.\nWe expect that after the corresponding work_struct is processed, the\nreference count of dl_stid will be decremented through the callback\nfunction nfsd4_cb_recall_release.\nHowever, if the call to nfsd4_run_cb fails, the incremented reference\ncount of dl_stid will not be decremented correspondingly, leading to the\nfollowing nfs4_stid leak:\nunreferenced object 0xffff88812067b578 (size 344):\n  comm \"nfsd\", pid 2761, jiffies 4295044002 (age 5541.241s)\n  hex dump (first 32 bytes):\n    01 00 00 00 6b 6b 6b 6b b8 02 c0 e2 81 88 ff ff  ....kkkk........\n    00 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  .kkkkkkk.....N..\n  backtrace:\n    kmem_cache_alloc+0x4b9/0x700\n    nfsd4_process_open1+0x34/0x300\n    nfsd4_open+0x2d1/0x9d0\n    nfsd4_proc_compound+0x7a2/0xe30\n    nfsd_dispatch+0x241/0x3e0\n    svc_process_common+0x5d3/0xcc0\n    svc_process+0x2a3/0x320\n    nfsd+0x180/0x2e0\n    kthread+0x199/0x1d0\n    ret_from_fork+0x30/0x50\n    ret_from_fork_asm+0x1b/0x30\nunreferenced object 0xffff8881499f4d28 (size 368):\n  comm \"nfsd\", pid 2761, jiffies 4295044005 (age 5541.239s)\n  hex dump (first 32 bytes):\n    01 00 00 00 00 00 00 00 30 4d 9f 49 81 88 ff ff  ........0M.I....\n    30 4d 9f 49 81 88 ff ff 20 00 00 00 01 00 00 00  0M.I.... .......\n  backtrace:\n    kmem_cache_alloc+0x4b9/0x700\n    nfs4_alloc_stid+0x29/0x210\n    alloc_init_deleg+0x92/0x2e0\n    nfs4_set_delegation+0x284/0xc00\n    nfs4_open_delegation+0x216/0x3f0\n    nfsd4_process_open2+0x2b3/0xee0\n    nfsd4_open+0x770/0x9d0\n    nfsd4_proc_compound+0x7a2/0xe30\n    nfsd_dispatch+0x241/0x3e0\n    svc_process_common+0x5d3/0xcc0\n    svc_process+0x2a3/0x320\n    nfsd+0x180/0x2e0\n    kthread+0x199/0x1d0\n    ret_from_fork+0x30/0x50\n    ret_from_fork_asm+0x1b/0x30\nFix it by checking the result of nfsd4_run_cb and call nfs4_put_stid if\nfail to queue dl_recall.","state":0,"publishedAt":"2025-04-16T14:11:46.624+00:00","modifiedAt":"2026-10-15T21:51:56.827+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                        \"fs/nfsd/nfs4state.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"b874cdef4e67e5150e07eff0eae1cbb21fb92da1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"cdb796137c57e68ca34518d53be53b679351eb86\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"d96587cc93ec369031bcd7658c6adc719873c9fd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"9a81cde8c7ce65dd90fb47ceea93a45fc1a2fbd1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"cad3479b63661a399c9df1d0b759e1806e2df3c8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"63b91c8ff4589f5263873b24c052447a28e10ef7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"133f5e2a37ce08c82d24e8fba65e0a81deae4609\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf\",\n                            \"lessThan\": \"230ca758453c63bd38e4d9f4a21db698f7abada8\",\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                        \"fs/nfsd/nfs4state.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.35\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.35\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.236\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.180\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.134\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.87\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.23\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.11\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.2\",\n                            \"lessThanOrEqual\": \"6.14.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15\",\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/b874cdef4e67e5150e07eff0eae1cbb21fb92da1","https://git.kernel.org/stable/c/cdb796137c57e68ca34518d53be53b679351eb86","https://git.kernel.org/stable/c/d96587cc93ec369031bcd7658c6adc719873c9fd","https://git.kernel.org/stable/c/9a81cde8c7ce65dd90fb47ceea93a45fc1a2fbd1","https://git.kernel.org/stable/c/cad3479b63661a399c9df1d0b759e1806e2df3c8","https://git.kernel.org/stable/c/63b91c8ff4589f5263873b24c052447a28e10ef7","https://git.kernel.org/stable/c/133f5e2a37ce08c82d24e8fba65e0a81deae4609","https://git.kernel.org/stable/c/230ca758453c63bd38e4d9f4a21db698f7abada8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-22025","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-22025","identifiers":["CVE-2025-22025"]},"retained":false,"historicalAffected":[]}],"coverage":[]}