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
Metrics
CVSS 3.1 4.7/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < 6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1; >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < 133b902378e4acbd824c29dd0d48570ad596e368; >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < 081105213ff6f661c114781d469233c7d0e09c2e; >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < c462ac871f49753eca86bb960f573b993976a5ea; >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < ea2ee5e9991caf74e0604f994c1831a5867055b2; >= 11ec7588a10d4bc2e1e385ac565d2166d375fba1, < a2bc47c43e70cf904b1af49f76d572326c08bca7 |
| Linux | Linux | 4.15 |
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
Timeline
- Published
- Aug 21, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed