Medium 5.5Published Apr 22, 2026

CVE-2026-31522HID: magicmouse: avoid memory leak in magicmouse_report_fixup()

Updated under an hour ago (Oct 27, 2026, 7:30 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e6ad399596bd234be4722022146e33e15c7e424d before 579c4c9857acdc8380fa99803f355f878bd766cb; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before d84c21aabaab517b9aaf9bc1d785922cb9db2f31; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before 7edfe4346b052b708645d0acc0f186425766b785; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before 136f605e246b4bfe7ac2259471d1ff814aed0084; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before fa95b0146358b49f9858139b67314591fd5871b0; from 0b91b4e4dae63cd43871fc2012370b86ee588f91 before 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c; c394bd1bc8537e61593b6b6799e01495c7cf9008; and 2 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 5.15.17 before 5.15.203; from 5.16.3 before 5.17; from 5.17 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 7.0; and 1 more ranges	NVD

References

References

https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb	patch
https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31	patch
https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785	patch
https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d	patch
https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084	patch
https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0	patch
https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.