HID: magicmouse: avoid memory leak in magicmouse_report_fixup()

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Summary

CVECVE-2026-31522
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 14:16:52 UTC
Updated2026-04-28 18:21:16 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.067930000 (date 2026-04-26)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e6ad399596bd234be4722022146e33e15c7e424d 579c4c9857acdc8380fa99803f355f878bd766cb git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 d84c21aabaab517b9aaf9bc1d785922cb9db2f31 git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 7edfe4346b052b708645d0acc0f186425766b785 git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 136f605e246b4bfe7ac2259471d1ff814aed0084 git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 fa95b0146358b49f9858139b67314591fd5871b0 git Not specified
CNA Linux Linux affected 0b91b4e4dae63cd43871fc2012370b86ee588f91 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c git Not specified
CNA Linux Linux affected c394bd1bc8537e61593b6b6799e01495c7cf9008 git Not specified
CNA Linux Linux affected 5.17 Not specified
CNA Linux Linux unaffected 5.17 semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.131 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.80 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.21 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.11 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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