{"id":"CVE-2026-98593","revision":"6a74544a9020473c956f9e478a78a515","records":[{"revision":"6a74544a9020473c956f9e478a78a515","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98593","aliases":[],"title":"s390/debug: Fix NULL pointer dereference in debug_info_copy()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/debug: Fix NULL pointer dereference in debug_info_copy()\n\nWhen debug_register_static() fails, it clears areas, active_pages and\nactive_entries but leaves the area bounds unchanged. Copying such an\narea, either by opening its view file or via debug_dump(), makes\ndebug_info_copy() dereference the NULL pointers.\n\nSkip the copy loop when the source has no areas.","state":0,"publishedAt":"2026-10-18T15:19:05.272+00:00","modifiedAt":"2026-10-19T09:22:18.775+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\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"a19bede30f0da5ae56782edac62b5998a7434cba\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"33f706884821da9cb55b650b7b1d4f2bdf800137\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"9c6af88fbefbe77608b77409df23a1617e28398c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"c593f38e1cdb92f87d01be4c4e5ac12417b1454b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d72541f945127b4873dace501406a1bc8cd8e1e9\",\n                            \"lessThan\": \"012bfcd5a51082d5a65f096dfb9ca652b5267965\",\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\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\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/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225","https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba","https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137","https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b","https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c","https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b","https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98593","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98593","identifiers":["CVE-2026-98593"]},"retained":false,"historicalAffected":[]}],"coverage":[]}