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CVE-2021-47120

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CVE-2021-47120

Published: Mar 15, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: fix NULL-deref on disconnect Commit 9d7b18668956 ("HID: magicmouse: add support for Apple Magic Trackpad 2") added a sanity check for an Apple trackpad but returned success instead of -ENODEV when the check failed. This means that the remove callback will dereference the never-initialised driver data pointer when the driver is later unbound (e.g. on USB disconnect).

VendorProductVersions

Linux

Linux

affected
9d7b18668956c411a422d04c712994c5fdb23a4b - < 368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6
affected
9d7b18668956c411a422d04c712994c5fdb23a4b - < b5d013c4c76b276890135b5d32803c4c63924b77
affected
9d7b18668956c411a422d04c712994c5fdb23a4b - < 9cf27473f21913a3eaf4702dd2a25415afd5f33f
affected
9d7b18668956c411a422d04c712994c5fdb23a4b - < 4b4f6cecca446abcb686c6e6c451d4f1ec1a7497

Linux

Linux

affected
4.20
unaffected
0 - < 4.20
unaffected
5.4.125 - <= 5.4.*
unaffected
5.10.43 - <= 5.10.*
unaffected
5.12.10 - <= 5.12.*

+1 more versions

References

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