{"id":"CVE-2026-98651","summary":"KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key()\n\nSome callers pass NULL as oldkey. Calling page_cond_set_storage_key()\nwill cause that NULL pointer to get dereferenced.\n\nFix by checking for NULL and assigning the pointer to a dummy local\nvariable to avoid crashes.","modified":"2026-10-19T02:47:02.186792578Z","published":"2026-10-18T15:20:22.978Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98651.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75867536746ab2d034488a6a93ee6cde83553342"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88e22ffd1e46b95e40a6afabe486deb1d31a3ae1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98651.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98651"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8e03e8316eb242af307d1c789d09f1a1457cf9a3"},{"fixed":"75867536746ab2d034488a6a93ee6cde83553342"},{"fixed":"88e22ffd1e46b95e40a6afabe486deb1d31a3ae1"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98651.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98651.json"}}],"schema_version":"1.9.0"}