{"id":"CVE-2026-53344","summary":"pinctrl: mcp23s08: Initialize mcp-\u003edev and mcp-\u003eaddr before regmap init","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mcp23s08: Initialize mcp-\u003edev and mcp-\u003eaddr before regmap init\n\nRegmap initialization triggers regcache_maple_populate() which attempts\nSPI read to populate cache. SPI read requires mcp-\u003edev and mcp-\u003eaddr to\nbe set, without them, NULL pointer dereference occurs during probe.\n\nMove initialization before mcp23s08_spi_regmap_init() call.","modified":"2026-07-25T03:31:53.330148154Z","published":"2026-07-01T13:32:24.546Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53344.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53344.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53344"},{"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":"f9f4fda15e720686f1b2b436591ab11255e4e85e"},{"fixed":"3a13bb9540dfd7014c5601608afcbbadbbcfd673"},{"fixed":"8473c3a197b57ff01396f7a2ec6ddf65383820d4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53344.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53344.json"}}],"schema_version":"1.7.5"}