Medium 5.5Published May 13, 2026

CVE-2026-43488usb: xhci: Prevent interrupt storm on host controller error (HCE)

Updated under an hour ago (Oct 27, 2026, 11:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Prevent interrupt storm on host controller error (HCE) The xHCI controller reports a Host Controller Error (HCE) in UAS Storage Device plug/unplug scenarios on Android devices. HCE is checked in xhci_irq() function and causes an interrupt storm (since the interrupt isn’t cleared), leading to severe system-level faults. When the xHC controller reports HCE in the interrupt handler, the driver only logs a warning and assumes xHC activity will stop as stated in xHCI specification. An interrupt storm does however continue on some hosts even after HCE, and only ceases after manually disabling xHC interrupt and stopping the controller by calling xhci_halt(). Add xhci_halt() to xhci_irq() function where STS_HCE status is checked, mirroring the existing error handling pattern used for STS_FATAL errors. This only fixes the interrupt storm. Proper HCE recovery requires resetting and re-initializing the xHC.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2a25e66d676dfb9b018abd503deed3d38a892dec before b2dd9abf8c06cfcbcf242321fd54ae51a4807705; from 2a25e66d676dfb9b018abd503deed3d38a892dec before 6f91f3f087194c114d6d8ea4591b850bb00672f8; from 2a25e66d676dfb9b018abd503deed3d38a892dec before cd41e0d1df8fcf5eae294657da52b50d1ce03246; from 2a25e66d676dfb9b018abd503deed3d38a892dec before 09ff0099c6cf148ff1f7053b5b6c84beb1c2ef8d; from 2a25e66d676dfb9b018abd503deed3d38a892dec before d6d5febd12452b7fd951fdd15c3ec262f01901a4	CNA record
linux linux_kernel linux:linux_kernel	from 6.2 before 6.6.130; from 6.7 before 6.12.78; from 6.13 before 6.18.19; from 6.19 before 6.19.9; 7.0; 7.0; 7.0	NVD

References

References

https://git.kernel.org/stable/c/b2dd9abf8c06cfcbcf242321fd54ae51a4807705	patch
https://git.kernel.org/stable/c/6f91f3f087194c114d6d8ea4591b850bb00672f8	patch
https://git.kernel.org/stable/c/cd41e0d1df8fcf5eae294657da52b50d1ce03246	patch
https://git.kernel.org/stable/c/09ff0099c6cf148ff1f7053b5b6c84beb1c2ef8d	patch
https://git.kernel.org/stable/c/d6d5febd12452b7fd951fdd15c3ec262f01901a4	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.