{"id":"CVE-2026-31522","title":"HID: magicmouse: avoid memory leak in magicmouse_report_fixup()","summary":"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 free…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e6ad399596bd234be4722022146e33e15c7e424d < 579c4c9857acdc8380fa99803f355f878bd766cb","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < d84c21aabaab517b9aaf9bc1d785922cb9db2f31","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 7edfe4346b052b708645d0acc0f186425766b785","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 136f605e246b4bfe7ac2259471d1ff814aed0084","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < fa95b0146358b49f9858139b67314591fd5871b0","Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c","Linux c394bd1bc8537e61593b6b6799e01495c7cf9008","Linux >= 5.15.17 < 5.15.203","Linux >= 5.16.3 < 5.17","Linux 5.17"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:37:15.850629Z"},"published":"2026-04-22","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:45:05.687Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31522","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"}],"tags":["cve.org"],"epss":0.00123,"epssPercentile":0.0206,"ingestedAt":"2026-11-05T23:41:31.977Z","slug":"CVE-2026-31522","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= e6ad399596bd234be4722022146e33e15c7e424d < 579c4c9857acdc8380fa99803f355f878bd766cb`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < d84c21aabaab517b9aaf9bc1d785922cb9db2f31`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 7edfe4346b052b708645d0acc0f186425766b785`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 136f605e246b4bfe7ac2259471d1ff814aed0084`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < fa95b0146358b49f9858139b67314591fd5871b0`\n- `Linux >= 0b91b4e4dae63cd43871fc2012370b86ee588f91 < 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c`\n- `Linux c394bd1bc8537e61593b6b6799e01495c7cf9008`\n- `Linux >= 5.15.17 < 5.15.203`\n- `Linux >= 5.16.3 < 5.17`\n- `Linux 5.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}