{"id":"CVE-2026-97980","revision":"90cea4510974412c9d91e324bfa5a204","records":[{"revision":"90cea4510974412c9d91e324bfa5a204","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97980","aliases":[],"title":"s390/debug: Fix NULL pointer dereference in debug_set_level()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/debug: Fix NULL pointer dereference in debug_set_level()\n\nCommit a2cec6863709 (\"s390/debug: Add s390dbf kernel parameter\")\nincorrectly removed a null-id check from debug_set_level(), introducing\na possible NULL pointer dereference for debug-API users that put\ndebug_register() results unchecked into debug_set_level().\n\nFix this by moving the check from the internal _debug_set_level()\nvariant back to the external debug_set_level() wrapper.","state":0,"publishedAt":"2026-09-25T10:23:17.075+00:00","modifiedAt":"2026-10-19T09:11:47.427+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                        \"arch/s390/kernel/debug.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"a2cec6863709d6673a025acc066c962b85a75842\",\n                            \"lessThan\": \"716e1cd3783806929407dbd596e6b1118971eb9e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a2cec6863709d6673a025acc066c962b85a75842\",\n                            \"lessThan\": \"b1eb31d533cdfcae1011ed53850d52f36afe5774\",\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                        \"arch/s390/kernel/debug.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\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/716e1cd3783806929407dbd596e6b1118971eb9e","https://git.kernel.org/stable/c/b1eb31d533cdfcae1011ed53850d52f36afe5774"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97980","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97980","identifiers":["CVE-2026-97980"]},"retained":false,"historicalAffected":[]}],"coverage":[]}