CVE-2024-49986: platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors
First published: Mon Oct 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.17<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| Linux Kernel | =6.12-rc1 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/ba0b09a2f327319e252d8f3032019b958c0a5cd9
- https://git.kernel.org/stable/c/aac871e493fc8809e60209d9899b1af07e9dbfc8
- https://git.kernel.org/stable/c/f08adc5177bd4343df09033f62ab562c09ba7f7d
- https://git.kernel.org/stable/c/73a98cf79e4dbfa3d0c363e826c65aae089b313c
- https://git.kernel.org/stable/c/2fae3129c0c08e72b1fe93e61fd8fd203252094a
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49986
- https://nvd.nist.gov/vuln/detail/CVE-2024-49986
- https://launchpad.net/bugs/cve/CVE-2024-49986
- https://security-tracker.debian.org/tracker/CVE-2024-49986
- https://ubuntu.com/security/CVE-2024-49986
- https://git.kernel.org/linus/2fae3129c0c08e72b1fe93e61fd8fd203252094a
Frequently Asked Questions
What is the severity of CVE-2024-49986?
CVE-2024-49986 has a medium severity rating as it involves a use after free condition that can potentially lead to system instability.
How do I fix CVE-2024-49986?
To mitigate CVE-2024-49986, update the Linux kernel to a version that includes the patch for this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-49986?
CVE-2024-49986 affects Linux kernel versions between 5.17 and 6.6.55, 6.7 and 6.10.14, and 6.11 and 6.11.3, along with the version 6.12-rc1.
What does CVE-2024-49986 involve?
CVE-2024-49986 involves a use after free vulnerability in the x86-android-tablets platform implementation of the Linux kernel.
Can CVE-2024-49986 be exploited remotely?
CVE-2024-49986 primarily affects system stability rather than being a remotely exploitable vulnerability.
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