CVE-2026-31522
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-401
- Record status
- Analyzed
Affected
- Linux Kernel < 5.15.203
- Linux Kernel < 5.17
- Linux Kernel < 6.1.168
- Linux Kernel < 6.6.131
- Linux Kernel < 6.12.80
- Linux Kernel < 6.18.21
- Linux Kernel < 6.19.11
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-31522.md and follow it. Check whether this project is affected by CVE-2026-31522. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084
- https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb
- https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d
- https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785
- https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c
- https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31
- https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0
References
- https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084
- https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb
- https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d
- https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785
- https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c
- https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31
- https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0