{"id":"CVE-2026-74652","summary":"serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: amba-pl011: cancel RS485 hrtimers after freeing IRQ\n\nThe RS485 trigger hrtimers are embedded in the devm-managed port and can\nfire after it is freed. The IRQ handler can arm a timer, so free the IRQ\nfirst and then cancel both timers.\n\nComplete the RS485 stop without arming a timer, and cancel the timers\nin remove() for the suspend-then-unbind path, where shutdown is not\ncalled.\n\nThis issue was found by an in-house static analysis tool.","modified":"2026-08-27T11:30:48.180885877Z","published":"2026-08-22T15:32:27.799Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74652.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/36672c8d7d14e9c43287528455d2c97b526ea6ad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/759ead98a39fb625be302f9aa66290985dcaa325"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e57f0aa5c35be37218ba0e4887b241584dd4b2d2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74652.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74652"},{"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":"2c1fd53af21b8cb13878b054894d33d3383eb1f3"},{"fixed":"759ead98a39fb625be302f9aa66290985dcaa325"},{"fixed":"e57f0aa5c35be37218ba0e4887b241584dd4b2d2"},{"fixed":"36672c8d7d14e9c43287528455d2c97b526ea6ad"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74652.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.14.0"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74652.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}