CVE-2022-50470

xhci: Remove device endpoints from bandwidth list when freeing the device

State: Published
Severity: Not scored
Published: Oct 4, 2025
Updated: May 11, 2026
Reserved: Oct 4, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

xhci: Remove device endpoints from bandwidth list when freeing the device

Endpoints are normally deleted from the bandwidth list when they are dropped, before the virt device is freed.

If xHC host is dying or being removed then the endpoints aren't dropped cleanly due to functions returning early to avoid interacting with a non-accessible host controller.

So check and delete endpoints that are still on the bandwidth list when freeing the virt device.

Solves a list_del corruption kernel crash when unbinding xhci-pci, caused by xhci_mem_cleanup() when it later tried to delete already freed endpoints from the bandwidth list.

This only affects hosts that use software bandwidth checking, which currenty is only the xHC in intel Panther Point PCH (Ivy Bridge)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 5e4ce28ad907aa54f13b21d5f1dc490525957b0cAffected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before f0de39474078adef6ece7a183e34c15ce2c1d8d1Affected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before cebbc8d335d6bcc1316584f779c08f80287c6af8Affected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38cAffected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 678d2cc2041cc6ce05030852dce9ad42719abcfcAffected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before c892a81c7424b4f6a660cb9c249d354ccf3afecaAffected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70Affected 2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 5aed5b7c2430ce318a8e62f752f181e66f0d1053Affected
LinuxLinux	3.2Affected before 3.2Not affected 4.9.332 through 4.9.Not affected 4.14.298 through 4.14.Not affected 4.19.264 through 4.19.Not affected 5.4.223 through 5.4.Not affected 5.10.153 through 5.10.Not affected 5.15.77 through 5.15.Not affected 6.0.7 through 6.0.*Not affected 6.1 and laterNot affected

Product

Versions

LinuxLinux

2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 5e4ce28ad907aa54f13b21d5f1dc490525957b0cAffected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before f0de39474078adef6ece7a183e34c15ce2c1d8d1Affected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before cebbc8d335d6bcc1316584f779c08f80287c6af8Affected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38cAffected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 678d2cc2041cc6ce05030852dce9ad42719abcfcAffected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before c892a81c7424b4f6a660cb9c249d354ccf3afecaAffected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70Affected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to before 5aed5b7c2430ce318a8e62f752f181e66f0d1053Affected

LinuxLinux

3.2Affected
before 3.2Not affected
4.9.332 through 4.9.*Not affected
4.14.298 through 4.14.*Not affected
4.19.264 through 4.19.*Not affected
5.4.223 through 5.4.*Not affected
5.10.153 through 5.10.*Not affected
5.15.77 through 5.15.*Not affected
6.0.7 through 6.0.*Not affected
6.1 and laterNot affected

References

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