{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80783","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.792Z","datePublished":"2026-09-04T15:12:54.859Z","dateUpdated":"2026-09-04T15:12:54.859Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-04T15:12:54.859Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-magicmouse.c"],"versions":[{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"26c45abed62536aabf4033fb6d64cf72e93374e9","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"8a10a624996f16628234306b46f0cf36707d78bd","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"d16df755b4493b6d37803c628b2c621d096796a8","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"bec338b07beb883726b32192c8f01c601bc76fda","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"70589b0c005db003f6d8ae4db3c4d54fed7b83e4","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"a33a596d3ad8dfe6c96a368097a028abeee16c17","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"d095de37f78c5f32a4252ef0f99b84ba76550b86","status":"affected","versionType":"git"},{"version":"a462230e16acc8664145216da3c928d03556691a","lessThan":"db8d634128d2ba88d79c0b601e983ebe14bb0519","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-magicmouse.c"],"versions":[{"version":"2.6.37","status":"affected"},{"version":"0","lessThan":"2.6.37","status":"unaffected","versionType":"semver"},{"version":"5.15.220","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.187","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.156","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.108","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.49","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":"2.6.37","versionEndExcluding":"5.15.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.1.187"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.6.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.12.108"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.18.49"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.3-rc1"}]}]}],"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"}}}}