Linux Kernel HID Apple Report Fixup Memory Leak
CVE-2026-31520 Published on April 22, 2026
HID: apple: avoid memory leak in apple_report_fixup()
In the Linux kernel, the following vulnerability has been resolved:
HID: apple: avoid memory leak in apple_report_fixup()
The apple_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-2026-31520
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below e2f090aeb7b9930a964e151910f4d45b04c8a7e5 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 2635d0c715f3fb177e0f80ecd5fa48feb6bf3884 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 31860c3f7ac66ab897a8c90dc4e74fa17ca0b624 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below be1a341c161430282acdfe2ac99b413271575cf1 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below e652ebd29928181c3e6820e303da25873e9917d4 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 239c15116d80f67d32f00acc34575f1a6b699613 is affected.
- 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.