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)
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < 5e4ce28ad907aa54f13b21d5f1dc490525957b0caffected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < f0de39474078adef6ece7a183e34c15ce2c1d8d1affected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < cebbc8d335d6bcc1316584f779c08f80287c6af8affected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < 8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38caffected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < 678d2cc2041cc6ce05030852dce9ad42719abcfcaffected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < c892a81c7424b4f6a660cb9c249d354ccf3afecaaffected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < 3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70affected2e27980e6eb78114c4ecbaad1ba71836e3887d18 to < 5aed5b7c2430ce318a8e62f752f181e66f0d1053affected
Linux Linux
Default version status: affected
3.2affected0 to < 3.2unaffected4.9.332 to ≤ 4.9.*unaffected4.14.298 to ≤ 4.14.*unaffected4.19.264 to ≤ 4.19.*unaffected5.4.223 to ≤ 5.4.*unaffected5.10.153 to ≤ 5.10.*unaffected5.15.77 to ≤ 5.15.*unaffected6.0.7 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5e4ce28ad907aa54f13b21d5f1dc490525957b0c ↗
- https://git.kernel.org/stable/c/f0de39474078adef6ece7a183e34c15ce2c1d8d1 ↗
- https://git.kernel.org/stable/c/cebbc8d335d6bcc1316584f779c08f80287c6af8 ↗
- https://git.kernel.org/stable/c/8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38c ↗
- https://git.kernel.org/stable/c/678d2cc2041cc6ce05030852dce9ad42719abcfc ↗
- https://git.kernel.org/stable/c/c892a81c7424b4f6a660cb9c249d354ccf3afeca ↗
- https://git.kernel.org/stable/c/3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70 ↗
- https://git.kernel.org/stable/c/5aed5b7c2430ce318a8e62f752f181e66f0d1053 ↗