{"id":"CVE-2026-64521","summary":"pinctrl: meson: amlogic-a4: fix deadlock issue","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: meson: amlogic-a4: fix deadlock issue\n\nAccessing the pinconf-pins sysfs node may deadlock.\n\npinconf_pins_show() holds pctldev-\u003emutex, and the platform driver\ncalls pinctrl_find_gpio_range_from_pin(), which tries to acquire\nthe same mutex again, leading to a deadlock.\n\nUse pinctrl_find_gpio_range_from_pin_nolock() to fix this issue.","modified":"2026-07-27T04:03:24.089047214Z","published":"2026-07-25T09:14:46.709Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64521.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/744ac926c0e55267a10b49b5b72582afef4ad49f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e72ce029810390eb987a036fb2c8a5da9a23b685"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e917713f013423069782ff554935c7a5d4266783"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64521.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64521"},{"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":"6e9be3abb78c2f6c97a51070004a5165702f0ed9"},{"fixed":"e917713f013423069782ff554935c7a5d4266783"},{"fixed":"744ac926c0e55267a10b49b5b72582afef4ad49f"},{"fixed":"e72ce029810390eb987a036fb2c8a5da9a23b685"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64521.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"6.18.34"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64521.json"}}],"schema_version":"1.7.5"}