{"id":"CVE-2026-80772","revision":"7cf9bfa324d9493bbe213da3c80072a2","records":[{"revision":"7cf9bfa324d9493bbe213da3c80072a2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80772","aliases":[],"title":"HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()\n\njoycon_ctlr_read_handler() casts an incoming HID input report to\nstruct joycon_input_report and parses it, guarding the cast only with a\n12-byte length check:\n\n\tif (size >= 12) /* make sure it contains the input report */\n\t\tjoycon_parse_report(ctlr, (struct joycon_input_report *)data);\n\nstruct joycon_input_report is 49 bytes: a 13-byte header followed by a\nunion whose IMU arm is 36 bytes. For an IMU report joycon_parse_report()\n-> joycon_parse_imu_report() walks that union (struct offsets 13..48),\nso a report of exactly 12 bytes with data[0] == JC_INPUT_IMU_DATA passes\nthe guard yet is read up to 37 bytes past its declared length. The\nover-read bytes are decoded into accelerometer/gyroscope values and\nforwarded to userspace through the \"(IMU)\" input device, leaking\ndriver-internal memory. data[0] and size are fully controlled by a\nmalicious or spoofed Joy-Con/Pro Controller.\n\nReceive buffers are sized to the maximum report length, so this is an\nover-read within the allocation rather than a slab OOB, but the decoded\nbytes still reach userspace.\n\nThe sibling subcmd path in joycon_ctlr_handle_event() already bounds the\nsame cast correctly:\n\n\tif (size < sizeof(struct joycon_input_report) ||\n\t    data[0] != JC_INPUT_SUBCMD_REPLY)\n\t\tbreak;\n\nUse the same sizeof(struct joycon_input_report) bound here.","state":0,"publishedAt":"2026-09-04T15:12:44.445+00:00","modifiedAt":"2026-10-19T08:43:28.729+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-nintendo.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"33ea29f8b6141f2d265de807e110a6435b355cb0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"bd397c4123a4bc084913d8c7fdb40ef94e9f8172\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"addca61f9a23c0d20a387c2040e70479f54518e1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"51cfd1adbe7a46bb08af162abb3ab3b6820e2d15\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"d4cabd4089adb59cf7974915737c52cc47a9bb1b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"34725ed4719da424113db8449fb5485aaf71a913\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2af16c1f846bd60240745bbd3afa13d5f040c61a\",\n                            \"lessThan\": \"27b376b945c0aac46fcdfcc950b14a85b874b557\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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-nintendo.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.16\",\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/33ea29f8b6141f2d265de807e110a6435b355cb0","https://git.kernel.org/stable/c/bd397c4123a4bc084913d8c7fdb40ef94e9f8172","https://git.kernel.org/stable/c/addca61f9a23c0d20a387c2040e70479f54518e1","https://git.kernel.org/stable/c/51cfd1adbe7a46bb08af162abb3ab3b6820e2d15","https://git.kernel.org/stable/c/d4cabd4089adb59cf7974915737c52cc47a9bb1b","https://git.kernel.org/stable/c/34725ed4719da424113db8449fb5485aaf71a913","https://git.kernel.org/stable/c/27b376b945c0aac46fcdfcc950b14a85b874b557"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80772","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80772","identifiers":["CVE-2026-80772"]},"retained":false,"historicalAffected":[]}],"coverage":[]}