CVE-2024-49986: platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-21 · updated 2026-08-04
Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors x86_android_tablet_remove() frees the pdevs[] array, so it should not be used after calling x86_android_tablet_remove(). When platform_device_register() fails, store the pdevs[x] PTR_ERR() value into the local ret variable before calling x86_android_tablet_remove() to avoid using pdevs[] after it has been freed.

Affected products

Debian Linux: 11.0
Linux kernel: from 5.17 before 6.1.118; from 6.2 before 6.6.55; from 6.7 before 6.10.14; from 6.11 before 6.11.3; 6.12-rc1 — fixed in 6.1.118, 6.10.14, 6.11.3, 6.6.55

How to fix

Upgrade to a fixed version: Linux kernel 6.1.118, 6.10.14, 6.11.3, 6.6.55. Check the vendor advisory for mitigations.

References

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