{"api_version":"1","generated_at":"2026-09-11T06:37:37+00:00","cve":"CVE-2026-80783","urls":{"html":"https://cve.report/CVE-2026-80783","api":"https://cve.report/api/cve/CVE-2026-80783.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80783","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80783"},"summary":{"title":"HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()\n\nmagicmouse_raw_event() handles DOUBLE_REPORT_ID (0xf7) packets, which pack\ntwo touch reports into one, by splitting the packet and calling itself on\neach half. The only guard against runaway recursion is a \"size < 1\" check,\nwhich stops zero-sized calls but does not bound the recursion depth.\n\nA malicious HID device that matches this driver can send a report starting\nwith DOUBLE_REPORT_ID and filled with the sequence [0xf7, 0x00]. Each level\nconsumes two bytes and recurses on the remainder, so an incoming report of\nup to HID_MAX_BUFFER_SIZE (16 KiB) drives roughly 8000 nested calls. That\neasily exhausts the 16 KiB kernel stack, leading to a stack overflow: a\npanic with CONFIG_VMAP_STACK, or memory corruption without it.\n\nA double report only ever wraps two normal reports; it is never\nlegitimately nested. Refuse to re-enter the DOUBLE_REPORT_ID case from a\nrecursive call so the recursion depth is bounded to two, while all valid\npackets keep being parsed exactly as before.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-04 16:18:04","updated_at":"2026-09-04 16:18:04"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a33a596d3ad8dfe6c96a368097a028abeee16c17","name":"https://git.kernel.org/stable/c/a33a596d3ad8dfe6c96a368097a028abeee16c17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bec338b07beb883726b32192c8f01c601bc76fda","name":"https://git.kernel.org/stable/c/bec338b07beb883726b32192c8f01c601bc76fda","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d16df755b4493b6d37803c628b2c621d096796a8","name":"https://git.kernel.org/stable/c/d16df755b4493b6d37803c628b2c621d096796a8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/db8d634128d2ba88d79c0b601e983ebe14bb0519","name":"https://git.kernel.org/stable/c/db8d634128d2ba88d79c0b601e983ebe14bb0519","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/70589b0c005db003f6d8ae4db3c4d54fed7b83e4","name":"https://git.kernel.org/stable/c/70589b0c005db003f6d8ae4db3c4d54fed7b83e4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d095de37f78c5f32a4252ef0f99b84ba76550b86","name":"https://git.kernel.org/stable/c/d095de37f78c5f32a4252ef0f99b84ba76550b86","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a10a624996f16628234306b46f0cf36707d78bd","name":"https://git.kernel.org/stable/c/8a10a624996f16628234306b46f0cf36707d78bd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/26c45abed62536aabf4033fb6d64cf72e93374e9","name":"https://git.kernel.org/stable/c/26c45abed62536aabf4033fb6d64cf72e93374e9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80783","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80783","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a462230e16acc8664145216da3c928d03556691a 26c45abed62536aabf4033fb6d64cf72e93374e9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a462230e16acc8664145216da3c928d03556691a 8a10a624996f16628234306b46f0cf36707d78bd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a462230e16acc8664145216da3c928d03556691a d16df755b4493b6d37803c628b2c621d096796a8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a462230e16acc8664145216da3c928d03556691a bec338b07beb883726b32192c8f01c601bc76fda git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.187 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.156 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.108 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.49 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.11 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.1 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80783","cve":"CVE-2026-80783","epss":"0.001950000","percentile":"0.092690000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hid/hid-magicmouse.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"26c45abed62536aabf4033fb6d64cf72e93374e9","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"8a10a624996f16628234306b46f0cf36707d78bd","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"d16df755b4493b6d37803c628b2c621d096796a8","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"bec338b07beb883726b32192c8f01c601bc76fda","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"70589b0c005db003f6d8ae4db3c4d54fed7b83e4","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"a33a596d3ad8dfe6c96a368097a028abeee16c17","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"d095de37f78c5f32a4252ef0f99b84ba76550b86","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"},{"lessThan":"db8d634128d2ba88d79c0b601e983ebe14bb0519","status":"affected","version":"a462230e16acc8664145216da3c928d03556691a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/hid-magicmouse.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.37"},{"lessThan":"2.6.37","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.220","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.187","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.156","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.108","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.49","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.11","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.220","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.187","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.156","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.108","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.49","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.11","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.1","versionStartIncluding":"2.6.37","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.37","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()\n\nmagicmouse_raw_event() handles DOUBLE_REPORT_ID (0xf7) packets, which pack\ntwo touch reports into one, by splitting the packet and calling itself on\neach half. The only guard against runaway recursion is a \"size < 1\" check,\nwhich stops zero-sized calls but does not bound the recursion depth.\n\nA malicious HID device that matches this driver can send a report starting\nwith DOUBLE_REPORT_ID and filled with the sequence [0xf7, 0x00]. Each level\nconsumes two bytes and recurses on the remainder, so an incoming report of\nup to HID_MAX_BUFFER_SIZE (16 KiB) drives roughly 8000 nested calls. That\neasily exhausts the 16 KiB kernel stack, leading to a stack overflow: a\npanic with CONFIG_VMAP_STACK, or memory corruption without it.\n\nA double report only ever wraps two normal reports; it is never\nlegitimately nested. Refuse to re-enter the DOUBLE_REPORT_ID case from a\nrecursive call so the recursion depth is bounded to two, while all valid\npackets keep being parsed exactly as before."}],"providerMetadata":{"dateUpdated":"2026-09-04T15:12:54.859Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/26c45abed62536aabf4033fb6d64cf72e93374e9"},{"url":"https://git.kernel.org/stable/c/8a10a624996f16628234306b46f0cf36707d78bd"},{"url":"https://git.kernel.org/stable/c/d16df755b4493b6d37803c628b2c621d096796a8"},{"url":"https://git.kernel.org/stable/c/bec338b07beb883726b32192c8f01c601bc76fda"},{"url":"https://git.kernel.org/stable/c/70589b0c005db003f6d8ae4db3c4d54fed7b83e4"},{"url":"https://git.kernel.org/stable/c/a33a596d3ad8dfe6c96a368097a028abeee16c17"},{"url":"https://git.kernel.org/stable/c/d095de37f78c5f32a4252ef0f99b84ba76550b86"},{"url":"https://git.kernel.org/stable/c/db8d634128d2ba88d79c0b601e983ebe14bb0519"}],"title":"HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80783","datePublished":"2026-09-04T15:12:54.859Z","dateReserved":"2026-08-26T14:34:25.792Z","dateUpdated":"2026-09-04T15:12:54.859Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-04 16:18:04","lastModifiedDate":"2026-09-04 16:18:04","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80783","Ordinal":"1","Title":"HID: magicmouse: prevent unbounded recursion in magicmouse_raw_e","CVE":"CVE-2026-80783","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80783","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()\n\nmagicmouse_raw_event() handles DOUBLE_REPORT_ID (0xf7) packets, which pack\ntwo touch reports into one, by splitting the packet and calling itself on\neach half. The only guard against runaway recursion is a \"size < 1\" check,\nwhich stops zero-sized calls but does not bound the recursion depth.\n\nA malicious HID device that matches this driver can send a report starting\nwith DOUBLE_REPORT_ID and filled with the sequence [0xf7, 0x00]. Each level\nconsumes two bytes and recurses on the remainder, so an incoming report of\nup to HID_MAX_BUFFER_SIZE (16 KiB) drives roughly 8000 nested calls. That\neasily exhausts the 16 KiB kernel stack, leading to a stack overflow: a\npanic with CONFIG_VMAP_STACK, or memory corruption without it.\n\nA double report only ever wraps two normal reports; it is never\nlegitimately nested. Refuse to re-enter the DOUBLE_REPORT_ID case from a\nrecursive call so the recursion depth is bounded to two, while all valid\npackets keep being parsed exactly as before.","Type":"Description","Title":"HID: magicmouse: prevent unbounded recursion in magicmouse_raw_e"}]}}}