CVE-2022-50245

rapidio: fix possible UAF when kfifo_alloc() fails

State: Published
Severity: Not scored
Published: Sep 15, 2025
Updated: May 11, 2026
Reserved: Sep 15, 2025

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

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e8de370188d098bb49483c287b44925957c3c9b6 to before 2a6c75adf8192f07ddcdd4a1a13488c890a73919Affected e8de370188d098bb49483c287b44925957c3c9b6 to before 2dfd60724d271a6ab99f93f40f38f2ced1ddbb87Affected e8de370188d098bb49483c287b44925957c3c9b6 to before a253dde0403a153075ffb254f6f7b2635e49e97aAffected e8de370188d098bb49483c287b44925957c3c9b6 to before 311b488405ac45af46756b1c8f1d27007b68b07eAffected e8de370188d098bb49483c287b44925957c3c9b6 to before 5ee850645e42f541ce1ea8130c2b27cc495f965cAffected e8de370188d098bb49483c287b44925957c3c9b6 to before 2f5cc7fd73fd6253cc71214f0dd499cc62feb469Affected e8de370188d098bb49483c287b44925957c3c9b6 to before 2ba06e57f933f0eac242e8b389433da1cc00d4d5Affected e8de370188d098bb49483c287b44925957c3c9b6 to before cb87af2c19c0993f6e21f75b963a5599c5a73e76Affected e8de370188d098bb49483c287b44925957c3c9b6 to before 02d7d89f816951e0862147d751b1150d67aaebddAffected
LinuxLinux	4.6Affected before 4.6Not affected 4.9.337 through 4.9.Not affected 4.14.303 through 4.14.Not affected 4.19.270 through 4.19.Not affected 5.4.229 through 5.4.Not affected 5.10.163 through 5.10.Not affected 5.15.86 through 5.15.Not affected 6.0.16 through 6.0.Not affected 6.1.2 through 6.1.Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

e8de370188d098bb49483c287b44925957c3c9b6 to before 2a6c75adf8192f07ddcdd4a1a13488c890a73919Affected
e8de370188d098bb49483c287b44925957c3c9b6 to before 2dfd60724d271a6ab99f93f40f38f2ced1ddbb87Affected
e8de370188d098bb49483c287b44925957c3c9b6 to before a253dde0403a153075ffb254f6f7b2635e49e97aAffected
e8de370188d098bb49483c287b44925957c3c9b6 to before 311b488405ac45af46756b1c8f1d27007b68b07eAffected
e8de370188d098bb49483c287b44925957c3c9b6 to before 5ee850645e42f541ce1ea8130c2b27cc495f965cAffected
e8de370188d098bb49483c287b44925957c3c9b6 to before 2f5cc7fd73fd6253cc71214f0dd499cc62feb469Affected
e8de370188d098bb49483c287b44925957c3c9b6 to before 2ba06e57f933f0eac242e8b389433da1cc00d4d5Affected
e8de370188d098bb49483c287b44925957c3c9b6 to before cb87af2c19c0993f6e21f75b963a5599c5a73e76Affected
e8de370188d098bb49483c287b44925957c3c9b6 to before 02d7d89f816951e0862147d751b1150d67aaebddAffected

LinuxLinux

4.6Affected
before 4.6Not affected
4.9.337 through 4.9.*Not affected
4.14.303 through 4.14.*Not affected
4.19.270 through 4.19.*Not affected
5.4.229 through 5.4.*Not affected
5.10.163 through 5.10.*Not affected
5.15.86 through 5.15.*Not affected
6.0.16 through 6.0.*Not affected
6.1.2 through 6.1.*Not affected
6.2 and laterNot affected

References

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