{"id":"CVE-2026-98476","revision":null,"records":[{"revision":"71515f0fca5542998d37f161de7b13bc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98476","aliases":[],"title":"s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()\n\nThe channel path registry entry associated with a CHPID may be removed\nwhile the subchannel's PMCW still references that CHPID. In this case,\nchpid_to_chp() can return NULL, leading to a NULL pointer dereference.\n\nAdd the missing NULL check before dereferencing the returned pointer.","state":0,"publishedAt":"2026-10-18T15:15:45.1+00:00","modifiedAt":"2026-10-19T09:20:13.92+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                        \"drivers/s390/cio/device_ops.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"9d8b21820caed9128945fffcedf03e2a4c21eee2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"5fc54e04dad90b15d0430118b3f288a1d64e66c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"27e396a89f76f742abdbe9f8c4a58a6e806fdf59\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"dbf30e661ceb9a52c94c85719716391dcc29142a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"5e006ac90a4d331db1dd712b91fec849b45ffc01\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"c3bbcb32deecc06ebb1762398399b566d5ff2fc9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"44b16b02608058fc72198ac0205969f0f43065df\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"199652309a4d6635fca19d7528d73ab9e219bd9a\",\n                            \"lessThan\": \"5b76268dac968612f7283d59b539036de955b7d9\",\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                        \"drivers/s390/cio/device_ops.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9d8b21820caed9128945fffcedf03e2a4c21eee2","https://git.kernel.org/stable/c/5fc54e04dad90b15d0430118b3f288a1d64e66c9","https://git.kernel.org/stable/c/27e396a89f76f742abdbe9f8c4a58a6e806fdf59","https://git.kernel.org/stable/c/dbf30e661ceb9a52c94c85719716391dcc29142a","https://git.kernel.org/stable/c/5e006ac90a4d331db1dd712b91fec849b45ffc01","https://git.kernel.org/stable/c/c3bbcb32deecc06ebb1762398399b566d5ff2fc9","https://git.kernel.org/stable/c/44b16b02608058fc72198ac0205969f0f43065df","https://git.kernel.org/stable/c/5b76268dac968612f7283d59b539036de955b7d9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98476","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98476","identifiers":["CVE-2026-98476"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-24T10:27:30.8908525+00:00","complete":true,"records":1756,"lastAttemptAt":"2026-10-24T10:27:30.8908525+00:00","lastSuccessAt":"2026-10-24T10:27:31.1285633+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:31.1285641+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-9b3cad78792c7367da03684feab05819ddebc4d137048bdbbdabdbb4d2879391-c6a8234687801ee57ab2aeb77d20947f334a6cc2941ea8b25213d5a7dcebf0ce","complete":true,"records":413884,"lastAttemptAt":"2026-10-24T10:27:30.7016219+00:00","lastSuccessAt":"2026-10-24T10:27:30.6836858+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:30.7016219+00:00","snapshotPublishedAt":"2026-10-24T10:24:24+00:00","importing":false,"stagedRecords":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-24T10:27:30.8908525+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-24T10:27:30.8908525+00:00","lastSuccessAt":"2026-10-24T10:27:31.3689689+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:31.3689698+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-16ad89dfea13ab9e9b0108e63a759d63bd4559cc68b58491107d62ee35bbbaf2","complete":true,"records":1965,"lastAttemptAt":"2026-10-24T10:27:30.7587662+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:30.7587662+00:00","snapshotPublishedAt":"2026-10-21T12:18:07+00:00","importing":false,"stagedRecords":0}]}