CVE-2023-52898

Medium

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

SeverityMedium
CVSS4.7
Exploit probability—
ProductLinux Kernel
PublishedAug 21, 2024
First seenAug 21, 2024

How to fix

Update
  • linux linux_kernel4.19.271, 5.4.230, 5.10.165, 5.15.90, 6.1.8 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernelv < 4.19.271, 4.20 ≤ v < 5.4.230, 5.5 ≤ v < 5.10.165, 5.11 ≤ v < 5.15.90, 5.16 ≤ v < 6.1.8, 6.24.19.271, 5.4.230, 5.10.165, 5.15.90, 6.1.8

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