CVE-2022-50245 Details
Description
In the Linux kernel, the following vulnerability has been resolved: rapidio: fix possible UAF when kfifo_alloc() fails If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning: drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list
A use-after-free vulnerability has been identified in the Linux kernel's RapidIO device driver. This issue arises in the 'mport_cdev_open()' function, where the 'kfifo_alloc()' allocation can fail. If this happens, the function frees the 'priv' variable but does not remove it from the 'chdev->file_list'. As a result, the list traversal can lead to a use-after-free condition. This vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. Instructions for upgrading can be found in the official Linux kernel documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd | kernel.org | Patch |
| https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469 | kernel.org | Patch |
| https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e | kernel.org | Patch |
| https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c | kernel.org | Patch |
| https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a | kernel.org | Patch |
| https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.6, < 4.9.337 >= 4.10, < 4.14.303 >= 4.15, < 4.19.270 >= 4.20, < 5.4.229 >= 5.5, < 5.10.163 >= 5.11, < 5.15.86 >= 5.16, < 6.0.16 >= 6.1, < 6.1.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 24, 2025 | Initial Analysis | [email protected] |
| Sep 15, 2025 | New CVE Received | kernel.org |