Memory leak in Linux kernel - CVE-2026-31520
Published: April 24, 2026
Vulnerability identifier: #VU127630
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-31520
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in apple_report_fixup() in the HID apple driver when processing crafted HID report descriptors. A local user can connect or emulate a crafted HID device to cause a denial of service.
How to mitigate CVE-2026-31520
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/239c15116d80f67d32f00acc34575f1a6b699613
- https://git.kernel.org/stable/c/2635d0c715f3fb177e0f80ecd5fa48feb6bf3884
- https://git.kernel.org/stable/c/31860c3f7ac66ab897a8c90dc4e74fa17ca0b624
- https://git.kernel.org/stable/c/be1a341c161430282acdfe2ac99b413271575cf1
- https://git.kernel.org/stable/c/e2f090aeb7b9930a964e151910f4d45b04c8a7e5
- https://git.kernel.org/stable/c/e652ebd29928181c3e6820e303da25873e9917d4