Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_suspend Consider a case where gserial_disconnect has already cleared gser->ioport. And if gserial_suspend gets called afterwards, it will lead to accessing of gser->ioport and thus causing null pointer dereference. Avoid this by adding a null pointer check. Added a static spinlock to prevent gser->ioport from becoming null after the newly added null pointer check.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.8, < 5.10.188 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2788a3553f7497075653210b42e2aeb6ba95e28ePatch
- https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909aPatch
- https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962Patch
- https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8fPatch
- https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04Patch
FAQ
What is CVE-2023-53356?
CVE-2023-53356 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_suspend Consider a case where gserial_disconnect has already cleared gser...
How severe is CVE-2023-53356?
CVE-2023-53356 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-2023-53356?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.