CVE-2024-49986: linux kernel Use-After-Free — Fix

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.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.17 — 6.6.55
linux	linux_kernel	6.7 — 6.10.14
linux	linux_kernel	6.11 — 6.11.3
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/2fae3129c0c08e72b1fe93e61fd8fd203252094a https://git.kernel.org/stable/c/73a98cf79e4dbfa3d0c363e826c65aae089b313c https://git.kernel.org/stable/c/aac871e493fc8809e60209d9899b1af07e9dbfc8 https://git.kernel.org/stable/c/f08adc5177bd4343df09033f62ab562c09ba7f7d

Other References

https://git.kernel.org/stable/c/ba0b09a2f327319e252d8f3032019b958c0a5cd9 https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-49986? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-49986? +

CVE-2024-49986 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-49986? +

CVE-2024-49986 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49986? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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