{"id":"CVE-2026-89623","revision":"18384f56878b40dfb6b518fc4ea98749","records":[{"revision":"18384f56878b40dfb6b518fc4ea98749","observedAt":"2026-10-24T16:17:04.479+00:00","statement":{"source":"cve-program","id":"CVE-2026-89623","aliases":[],"title":"HID: mcp2221: stop device IO before hid_hw_stop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: mcp2221: stop device IO before hid_hw_stop\n\nQuiesce device IO at the start of the devm cleanup callback\nmcp2221_hid_unregister() so that incoming HID reports cannot race with\nhardware teardown during probe failure or device removal, addressing a\npotential use-after-free.\n\nGuard the call to hid_device_io_stop() with io_started. On normal\nremoval hid_device_remove() has already cleared io_started before the\ndevres group is released, so an unconditional call would otherwise hit\nthe !io_started path and emit a spurious \"io already stopped\" warning\non every removal. The guard preserves the probe-failure balancing,\nwhere io_started is still set after hid_device_io_start(), while\nstaying silent on the normal removal path.","state":0,"publishedAt":"2026-09-11T19:45:20.758+00:00","modifiedAt":"2026-10-24T14:14:00.813+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/hid-mcp2221.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d4b50ac06ea6e47bdd2b04e97d1090c673c80645\",\n                            \"lessThan\": \"85d963499f1feeea287c0a37c3eac3fc1898eca9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"73ce9f1f2741a38f5d27393e627702ae2c46e6f2\",\n                            \"lessThan\": \"0ae90a19e6b5a8557d25d95facb7e01c9c07af38\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"73ce9f1f2741a38f5d27393e627702ae2c46e6f2\",\n                            \"lessThan\": \"c99ba6c234d4d537c317336376b78c088174034a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"73ce9f1f2741a38f5d27393e627702ae2c46e6f2\",\n                            \"lessThan\": \"2eda1513f573945c1e3a0090341f3d28740463b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"73ce9f1f2741a38f5d27393e627702ae2c46e6f2\",\n                            \"lessThan\": \"dca151633c0fde90935311c60e7cfc064aa56134\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.6.8\",\n                            \"lessThan\": \"6.6.157\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/hid-mcp2221.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.109\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9","https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38","https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a","https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1","https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89623","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89623","identifiers":["CVE-2026-89623"]},"retained":false,"historicalAffected":[]}],"coverage":[]}