{"id":"CVE-2026-31522","state":"PUBLISHED","title":"HID: magicmouse: avoid memory leak in magicmouse_report_fixup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: avoid memory leak in magicmouse_report_fixup()\n\nThe magicmouse_report_fixup() function was returning a\nnewly kmemdup()-allocated buffer, but never freeing it.\n\nThe caller of report_fixup() does not take ownership of the returned\npointer, but it *is* permitted to return a sub-portion of the input\nrdesc, whose lifetime is managed by the caller.","publishedAt":"2026-04-22T13:54:36.885Z","updatedAt":"2026-05-23T16:05:16.510Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6ad399596bd234be4722022146e33e15c7e424d","status":"affected","lessThan":"579c4c9857acdc8380fa99803f355f878bd766cb","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"d84c21aabaab517b9aaf9bc1d785922cb9db2f31","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"7edfe4346b052b708645d0acc0f186425766b785","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"79e5dcc95d9abed6f8203cfd529f4ec71f0e505d","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"136f605e246b4bfe7ac2259471d1ff814aed0084","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"fa95b0146358b49f9858139b67314591fd5871b0","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"91e8c6e601bdc1ccdf886479b6513c01c7e51c2c","versionType":"git"},{"version":"c394bd1bc8537e61593b6b6799e01495c7cf9008","status":"affected","versionType":"git"},{"version":"5.15.17","status":"affected","lessThan":"5.15.203","versionType":"semver"},{"version":"5.16.3","status":"affected","lessThan":"5.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-magicmouse.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-magicmouse.c"]}],"references":["https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb","https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31","https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785","https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d","https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084","https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0","https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31522.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31522","state":"PUBLISHED","datePublished":"2026-04-22T13:54:36.885Z","dateUpdated":"2026-05-23T16:05:16.510Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-03-09T15:48:24.110Z"},"containers":{"cna":{"title":"HID: magicmouse: avoid memory leak in magicmouse_report_fixup()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: avoid memory leak in magicmouse_report_fixup()\n\nThe magicmouse_report_fixup() function was returning a\nnewly kmemdup()-allocated buffer, but never freeing it.\n\nThe caller of report_fixup() does not take ownership of the returned\npointer, but it *is* permitted to return a sub-portion of the input\nrdesc, whose lifetime is managed by the caller."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e6ad399596bd234be4722022146e33e15c7e424d","status":"affected","lessThan":"579c4c9857acdc8380fa99803f355f878bd766cb","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"d84c21aabaab517b9aaf9bc1d785922cb9db2f31","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"7edfe4346b052b708645d0acc0f186425766b785","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"79e5dcc95d9abed6f8203cfd529f4ec71f0e505d","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"136f605e246b4bfe7ac2259471d1ff814aed0084","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"fa95b0146358b49f9858139b67314591fd5871b0","versionType":"git"},{"version":"0b91b4e4dae63cd43871fc2012370b86ee588f91","status":"affected","lessThan":"91e8c6e601bdc1ccdf886479b6513c01c7e51c2c","versionType":"git"},{"version":"c394bd1bc8537e61593b6b6799e01495c7cf9008","status":"affected","versionType":"git"},{"version":"5.15.17","status":"affected","lessThan":"5.15.203","versionType":"semver"},{"version":"5.16.3","status":"affected","lessThan":"5.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-magicmouse.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-magicmouse.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb"},{"url":"https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31"},{"url":"https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785"},{"url":"https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d"},{"url":"https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084"},{"url":"https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0"},{"url":"https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:05:16.510Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.17","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.1.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.6.131"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.12.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.18.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.19.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}