{"id":"CVE-2026-98528","summary":"gpio: cdev: fix kernel stack leak to user-space in error path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: cdev: fix kernel stack leak to user-space in error path\n\nIf we fail to acquire the GPIO chip guard in gpio_desc_to_lineinfo(), we\nreturn immediately before zeroing the info struct we'll end up passing\nto the user-space later in lineinfo_get_v1(). This may leak the kernel\nstack contents. Make gpio_desc_to_lineinfo() return int so that the\n-ENODEV returned on failure to acquire the guard can be propagated to\nthe callers.\n\nWhile not strictly necessary: move the memset() before trying to acquire\nthe SRCU read lock too for good measure.","modified":"2026-10-19T02:46:30.266362700Z","published":"2026-10-18T15:17:46.695Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98528.json"},"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/1feb5d39b05afd902ed9fc902ec5b15be03a4bdb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/60a466f231905cd96ae6f0f3c44a710c97873dac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8460ee5216ab9a38263b01dca4b0a27e083f70f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf3d043582e106a0e57002bec8a6de8929ba3e1c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98528.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98528"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d83cee3d2bb131c7fca7e19f1e33dc7530fd7083"},{"fixed":"8460ee5216ab9a38263b01dca4b0a27e083f70f3"},{"fixed":"cf3d043582e106a0e57002bec8a6de8929ba3e1c"},{"fixed":"60a466f231905cd96ae6f0f3c44a710c97873dac"},{"fixed":"1feb5d39b05afd902ed9fc902ec5b15be03a4bdb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98528.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98528.json"}}],"schema_version":"1.9.0"}