{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80772","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.792Z","datePublished":"2026-09-04T15:12:44.445Z","dateUpdated":"2026-09-04T15:12:44.445Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-04T15:12:44.445Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-nintendo.c"],"versions":[{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"33ea29f8b6141f2d265de807e110a6435b355cb0","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"bd397c4123a4bc084913d8c7fdb40ef94e9f8172","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"addca61f9a23c0d20a387c2040e70479f54518e1","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"51cfd1adbe7a46bb08af162abb3ab3b6820e2d15","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"d4cabd4089adb59cf7974915737c52cc47a9bb1b","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"34725ed4719da424113db8449fb5485aaf71a913","status":"affected","versionType":"git"},{"version":"2af16c1f846bd60240745bbd3afa13d5f040c61a","lessThan":"27b376b945c0aac46fcdfcc950b14a85b874b557","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-nintendo.c"],"versions":[{"version":"5.16","status":"affected"},{"version":"0","lessThan":"5.16","status":"unaffected","versionType":"semver"},{"version":"6.1.185","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.154","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.106","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.47","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.11","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2.1","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.185"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.6.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.12.106"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.18.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/33ea29f8b6141f2d265de807e110a6435b355cb0"},{"url":"https://git.kernel.org/stable/c/bd397c4123a4bc084913d8c7fdb40ef94e9f8172"},{"url":"https://git.kernel.org/stable/c/addca61f9a23c0d20a387c2040e70479f54518e1"},{"url":"https://git.kernel.org/stable/c/51cfd1adbe7a46bb08af162abb3ab3b6820e2d15"},{"url":"https://git.kernel.org/stable/c/d4cabd4089adb59cf7974915737c52cc47a9bb1b"},{"url":"https://git.kernel.org/stable/c/34725ed4719da424113db8449fb5485aaf71a913"},{"url":"https://git.kernel.org/stable/c/27b376b945c0aac46fcdfcc950b14a85b874b557"}],"title":"HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()","x_generator":{"engine":"bippy-1.2.0"}}}}