{"id":"CVE-2026-80782","revision":"56888e3ee10548878aeab1b2bdf4b9bd","records":[{"revision":"56888e3ee10548878aeab1b2bdf4b9bd","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80782","aliases":[],"title":"HID: magicmouse: do not keep a stale msc->input if no input is claimed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: do not keep a stale msc->input if no input is claimed\n\nmagicmouse_input_mapping() caches the first hid_input's input_dev in\nmsc->input while the report descriptor is parsed, and the rest of the\ndriver treats a non-NULL msc->input as proof that an input device was\nregistered.\n\nThat does not hold on the hid-input error path. If hidinput_connect()\nfails -- for instance because input_register_device() returns an error --\nit unwinds through hidinput_disconnect(), which frees every input_dev it\ncreated, including the one cached in msc->input.\n\nThe failure does not abort the probe. hid_connect() only skips the claim:\n\n\tif ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,\n\t\t\t\tconnect_mask & HID_CONNECT_HIDINPUT_FORCE))\n\t\thdev->claimed |= HID_CLAIMED_INPUT;\n\nand the \"device has no listeners\" bailout below it does not fire for this\ndriver, which sets ->raw_event; on the USB Magic Mouse 2 / Magic Trackpad\n2 paths hidraw and hiddev are claimed as well. hid_hw_start() therefore\nreturns 0 and magicmouse_probe() continues with msc->input pointing at\nfreed memory. Being non-NULL, it passes the \"input not registered\" check\nin probe and the NULL checks in ->raw_event and ->event, so the next\ninput report dereferences freed memory.\n\nClear msc->input when the HID core did not claim an input device, so the\nexisting NULL checks cover this case as well.","state":0,"publishedAt":"2026-09-04T15:12:53.933+00:00","modifiedAt":"2026-10-19T08:43:37.541+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-magicmouse.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"c3597923932bb90d4fc2186aef552f6677175e4a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"e0c224c93d10ee38854fdf24c815108aedd3dcb3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"3d7a7bac4c75f25b2513505a0ac5ba909588ed2b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"9bdf8c7bfd79f1090e61d28f969b32880fd77bb3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"15b60ade825c8ce9ec560048a4ae3747e4572be3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"0bf253e9ac994cb5329bc87b00bb4eeca9136791\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"2ef16934e069d5f771e989d6ee5c3ece5042f3cd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f1a9a149abc86903e81dd1b2e720f3f89874384b\",\n                            \"lessThan\": \"0af3b89705688af01aa06025b84fa7a1e06ba6cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0e55072e7c63a6569cab1447e9025d160abd9dd9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3.8.7\",\n                            \"lessThan\": \"3.9\",\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-magicmouse.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.269\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.218\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.185\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.154\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.106\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.47\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.11\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.1\",\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/c3597923932bb90d4fc2186aef552f6677175e4a","https://git.kernel.org/stable/c/e0c224c93d10ee38854fdf24c815108aedd3dcb3","https://git.kernel.org/stable/c/403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14","https://git.kernel.org/stable/c/3d7a7bac4c75f25b2513505a0ac5ba909588ed2b","https://git.kernel.org/stable/c/9bdf8c7bfd79f1090e61d28f969b32880fd77bb3","https://git.kernel.org/stable/c/15b60ade825c8ce9ec560048a4ae3747e4572be3","https://git.kernel.org/stable/c/0bf253e9ac994cb5329bc87b00bb4eeca9136791","https://git.kernel.org/stable/c/2ef16934e069d5f771e989d6ee5c3ece5042f3cd","https://git.kernel.org/stable/c/0af3b89705688af01aa06025b84fa7a1e06ba6cc"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80782","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80782","identifiers":["CVE-2026-80782"]},"retained":false,"historicalAffected":[]}],"coverage":[]}