- Vulnerability/
- CVE-2022-49422
CVE-2022-49422: dmaengine: idxd: Fix the error handling path in idxd_cdev_register()
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix the error handling path in idxd_cdev_register() If a call to alloc_chrdev_region() fails, the already allocated resources are leaking. Add the needed error handling path to fix the leak.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel |
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Reference Links
- https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143
- https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f
- https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189
- https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a
- https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f
Frequently Asked Questions
What is the severity of CVE-2022-49422?
CVE-2022-49422 is categorized as a moderate severity vulnerability within the Linux kernel.
How do I fix CVE-2022-49422?
To mitigate CVE-2022-49422, users should update their Linux kernel to the latest version that contains the patch for this vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-49422?
CVE-2022-49422 affects specific versions of the Linux kernel prior to the release that includes the fix.
What is the nature of the vulnerability in CVE-2022-49422?
CVE-2022-49422 involves improper error handling in the idxd_cdev_register function, leading to resource leakage.
Is CVE-2022-49422 exploitable remotely?
CVE-2022-49422 does not indicate remote exploitability as it pertains to the Linux kernel's internal handling.
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