FKIE_CVE-2022-50470

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-01-23 16:37
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5aed5b7c2430ce318a8e62f752f181e66f0d1053Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e4ce28ad907aa54f13b21d5f1dc490525957b0cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/678d2cc2041cc6ce05030852dce9ad42719abcfcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c892a81c7424b4f6a660cb9c249d354ccf3afecaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cebbc8d335d6bcc1316584f779c08f80287c6af8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0de39474078adef6ece7a183e34c15ce2c1d8d1Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
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  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Remove device endpoints from bandwidth list when freeing the device\n\nEndpoints are normally deleted from the bandwidth list when they are\ndropped, before the virt device is freed.\n\nIf xHC host is dying or being removed then the endpoints aren\u0027t dropped\ncleanly due to functions returning early to avoid interacting with a\nnon-accessible host controller.\n\nSo check and delete endpoints that are still on the bandwidth list when\nfreeing the virt device.\n\nSolves a list_del corruption kernel crash when unbinding xhci-pci,\ncaused by xhci_mem_cleanup() when it later tried to delete already freed\nendpoints from the bandwidth list.\n\nThis only affects hosts that use software bandwidth checking, which\ncurrenty is only the xHC in intel Panther Point PCH (Ivy Bridge)"
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  "id": "CVE-2022-50470",
  "lastModified": "2026-01-23T16:37:44.287",
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2025-10-04T16:15:42.380",
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