Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference when host dies Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause null pointer dereference when host suddenly dies. Usb core may call xhci_free_dev() which frees the xhci->devs[slot_id] virt device at the same time that xhci_kill_endpoint_urbs() tries to loop through all the device's endpoints, checking if there are any cancelled urbs left to give back. hold the xhci spinlock while freeing the virt device
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.19.271 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2ePatch
- https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368Patch
- https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1Patch
- https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7Patch
- https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5eaPatch
- https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2Patch
FAQ
What is CVE-2023-52898?
CVE-2023-52898 is a vulnerability with a CVSS score of 4.7 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference when host dies Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause nu...
How severe is CVE-2023-52898?
CVE-2023-52898 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52898?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.