Unrated severityNVD Advisory· Published Sep 15, 2025
rapidio: fix possible UAF when kfifo_alloc() fails
CVE-2022-50245
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
Affected products
2- Linux/Linuxv5Range: 4.6
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebddmitre
- git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919mitre
- git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5mitre
- git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87mitre
- git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469mitre
- git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07emitre
- git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965cmitre
- git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97amitre
- git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76mitre
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