Linux Kernel HID magicmouse: Memory Leak in report_fixup()
CVE-2026-31522 Published on April 22, 2026
HID: magicmouse: avoid memory leak in magicmouse_report_fixup()
In the Linux kernel, the following vulnerability has been resolved:
HID: magicmouse: avoid memory leak in magicmouse_report_fixup()
The magicmouse_report_fixup() function was returning a
newly kmemdup()-allocated buffer, but never freeing it.
The caller of report_fixup() does not take ownership of the returned
pointer, but it *is* permitted to return a sub-portion of the input
rdesc, whose lifetime is managed by the caller.
Products Associated with CVE-2026-31522
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 579c4c9857acdc8380fa99803f355f878bd766cb is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below d84c21aabaab517b9aaf9bc1d785922cb9db2f31 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 7edfe4346b052b708645d0acc0f186425766b785 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 136f605e246b4bfe7ac2259471d1ff814aed0084 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below fa95b0146358b49f9858139b67314591fd5871b0 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c is affected.
- Version 5.15.203, <= 5.15.* is unaffected.
- Version 6.1.168, <= 6.1.* is unaffected.
- Version 6.6.131, <= 6.6.* is unaffected.
- Version 6.12.80, <= 6.12.* is unaffected.
- Version 6.18.21, <= 6.18.* is unaffected.
- Version 6.19.11, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.