CVE-2024-50109: md/raid10: fix null ptr dereference in raid10_size()
First published: Tue Nov 05 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix null ptr dereference in raid10_size() In raid10_run() if raid10_set_queue_limits() succeed, the return value is set to zero, and if following procedures failed raid10_run() will return zero while mddev->private is still NULL, causing null ptr dereference in raid10_size(). Fix the problem by only overwrite the return value if raid10_set_queue_limits() failed.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.9<6.11.6 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/b3054db2fd2d35f2eb3b4b5fb1407792f465391c
- https://git.kernel.org/stable/c/825711e00117fc686ab89ac36a9a7b252dc349c6
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50109
- https://nvd.nist.gov/vuln/detail/CVE-2024-50109
- https://launchpad.net/bugs/cve/CVE-2024-50109
- https://security-tracker.debian.org/tracker/CVE-2024-50109
- https://ubuntu.com/security/CVE-2024-50109
- https://git.kernel.org/linus/825711e00117fc686ab89ac36a9a7b252dc349c6
Frequently Asked Questions
What is the severity of CVE-2024-50109?
CVE-2024-50109 has not been assigned a specific severity rating but involves a null pointer dereference vulnerability in the Linux kernel.
How do I fix CVE-2024-50109?
To resolve CVE-2024-50109, users should upgrade to the latest patched version of the Linux kernel that addresses this vulnerability.
Which versions of Linux kernel are affected by CVE-2024-50109?
CVE-2024-50109 affects Linux kernel versions from 6.9 up to 6.11.6 and specific release candidates for 6.12.
What components are involved in CVE-2024-50109?
CVE-2024-50109 specifically involves the md (multiple devices) subsystem and the raid10 (Redundant Array of Independent Disks) functionality.
Is CVE-2024-50109 exploitable remotely?
The specific details on remote exploitability are not mentioned, but vulnerabilities related to kernel operations could potentially be leveraged for local privilege escalation.
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