{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31522", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.110Z", "datePublished": "2026-04-22T13:54:36.885Z", "dateUpdated": "2026-04-22T13:54:36.885Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-22T13:54:36.885Z"}, "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": [{"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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "579c4c9857acdc8380fa99803f355f878bd766cb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "d84c21aabaab517b9aaf9bc1d785922cb9db2f31", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "7edfe4346b052b708645d0acc0f186425766b785", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "79e5dcc95d9abed6f8203cfd529f4ec71f0e505d", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "136f605e246b4bfe7ac2259471d1ff814aed0084", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "fa95b0146358b49f9858139b67314591fd5871b0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "91e8c6e601bdc1ccdf886479b6513c01c7e51c2c", "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": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.131", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.21", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.131"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0"}]}]}], "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"}], "title": "HID: magicmouse: avoid memory leak in magicmouse_report_fixup()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-31522", "lastModified": "2026-04-22T14:16:52.100", "metrics": {}, "published": "2026-04-22T14:16:52.100", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: HID: magicmouse: avoid memory leak in magicmouse_report_fixup()", "id": "2460655", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460655"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's HID magicmouse driver. The `magicmouse_report_fixup()` function, responsible for fixing report descriptors, allocates a new memory buffer but fails to free it. This memory leak can accumulate over time, potentially allowing a local attacker to exhaust system resources and cause a Denial of Service (DoS)."], "name": "CVE-2026-31522", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31522\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31522\nhttps://lore.kernel.org/linux-cve-announce/2026042212-CVE-2026-31522-b576@gregkh/T"], "threat_severity": "Low"}

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