{"id":"CVE-2026-74403","summary":"crypto: ccp - Check for page allocation failure correctly in TIO","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Check for page allocation failure correctly in TIO\n\nSashiko notes:\n\n\u003e if __snp_alloc_firmware_pages() returns NULL under memory pressure, is it\n\u003e safe to pass it directly to page_address()?\n\u003e\n\u003e On architectures without HASHED_PAGE_VIRTUAL, page_address(NULL) might\n\u003e compute a deterministic but invalid, non-zero virtual address. The\n\u003e subsequent if (tio_status) check would then evaluate to true, and\n\u003e sev_tsm_init_locked() would dereference the invalid pointer.\n\nIndeed, page_address(NULL) will return non-NULL garbage here. Fix this by\nchecking the page allocation itself for NULL, not the resulting virtual\naddress.","modified":"2026-08-16T03:48:50.781865878Z","published":"2026-08-15T05:59:13.399Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74403.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/17e1aae19a06d9f6da4b46d54fa2aeab77ec0c69"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8d5370eef00eca132a292b1901c9914c817e385"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74403.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74403"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4be423572da1f4c11f45168e3fafda870ddac9f8"},{"fixed":"17e1aae19a06d9f6da4b46d54fa2aeab77ec0c69"},{"fixed":"a8d5370eef00eca132a292b1901c9914c817e385"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74403.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74403.json"}}],"schema_version":"1.9.0"}