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

References

https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2

https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea

https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7

https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1

https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368

https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e

Details

Source: Mitre, NVD

Published: 2024-08-21

Updated: 2024-09-13

Risk Information

CVSS v2

Base Score: 3.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:N/A:C

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium