Bug 2347771 (CVE-2022-49422) - CVE-2022-49422 kernel: dmaengine: idxd: Fix the error handling path in idxd_cdev_register()
Summary: CVE-2022-49422 kernel: dmaengine: idxd: Fix the error handling path in idxd_c...
Keywords:
Status: NEW
Alias: CVE-2022-49422
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:06 UTC by OSIDB Bzimport
Modified: 2025-02-26 16:07 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-02-26 03:06:12 UTC 
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.
Comment 1 Avinash Hanwate 2025-02-26 11:31:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022654-CVE-2022-49422-b047@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 15:59:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022654-CVE-2022-49422-b047@gregkh/T
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