Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this. Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.8, < 5.10.171 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5Patch
- https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377Patch
- https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5Patch
- https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897Patch
- https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6Patch
FAQ
What is CVE-2023-53551?
CVE-2023-53551 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser-...
How severe is CVE-2023-53551?
CVE-2023-53551 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53551?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.