CVE-2022-50245
What it is
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
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Linux Kernel < 4.9.337
- Linux Kernel < 4.14.303
- Linux Kernel < 4.19.270
- Linux Kernel < 5.4.229
- Linux Kernel < 5.10.163
- Linux Kernel < 5.15.86
- Linux Kernel < 6.0.16
- Linux Kernel < 6.1.2
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-50245.md and follow it. Check whether this project is affected by CVE-2022-50245. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd
- https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919
- https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5
- https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87
- https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469
- https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e
- https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c
- https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a
- https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76
References
- https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd
- https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919
- https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5
- https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87
- https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469
- https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e
- https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c
- https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a
- https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76