CVE-2024-26659

xhci: handle isoc Babble and Buffer Overrun events properly

State: Published
Severity: 7.8 High
Published: Apr 2, 2024
Updated: Oct 15, 2026
Reserved: Feb 19, 2024

Description

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

xhci: handle isoc Babble and Buffer Overrun events properly

xHCI 4.9 explicitly forbids assuming that the xHC has released its ownership of a multi-TRB TD when it reports an error on one of the early TRBs. Yet the driver makes such assumption and releases the TD, allowing the remaining TRBs to be freed or overwritten by new TDs.

The xHC should also report completion of the final TRB due to its IOC flag being set by us, regardless of prior errors. This event cannot be recognized if the TD has already been freed earlier, resulting in "Transfer event TRB DMA ptr not part of current TD" error message.

Fix this by reusing the logic for processing isoc Transaction Errors. This also handles hosts which fail to report the final completion.

Fix transfer length reporting on Babble errors. They may be caused by device malfunction, no guarantee that the buffer has been filled.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	04e51901dd44f40a5a385ced897f6bca87d5f40a to before 696e4112e5c1ee61996198f0ebb6ca3fab55166eAffected 04e51901dd44f40a5a385ced897f6bca87d5f40a to before 2aa7bcfdbb46241c701811bbc0d64d7884e3346cAffected 04e51901dd44f40a5a385ced897f6bca87d5f40a to before 2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3Affected 04e51901dd44f40a5a385ced897f6bca87d5f40a to before f5e7ffa9269a448a720e21f1ed1384d118298c97Affected 04e51901dd44f40a5a385ced897f6bca87d5f40a to before 418456c0ce56209610523f21734c5612ee634134Affected 04e51901dd44f40a5a385ced897f6bca87d5f40a to before 7c4650ded49e5b88929ecbbb631efb8b0838e811Affected
LinuxLinux	2.6.36Affected before 2.6.36Not affected 5.10.213 through 5.10.Not affected 5.15.152 through 5.15.Not affected 6.1.82 through 6.1.Not affected 6.6.17 through 6.6.Not affected 6.7.5 through 6.7.*Not affected 6.8 and laterNot affected

Product

Versions

LinuxLinux

04e51901dd44f40a5a385ced897f6bca87d5f40a to before 696e4112e5c1ee61996198f0ebb6ca3fab55166eAffected
04e51901dd44f40a5a385ced897f6bca87d5f40a to before 2aa7bcfdbb46241c701811bbc0d64d7884e3346cAffected
04e51901dd44f40a5a385ced897f6bca87d5f40a to before 2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3Affected
04e51901dd44f40a5a385ced897f6bca87d5f40a to before f5e7ffa9269a448a720e21f1ed1384d118298c97Affected
04e51901dd44f40a5a385ced897f6bca87d5f40a to before 418456c0ce56209610523f21734c5612ee634134Affected
04e51901dd44f40a5a385ced897f6bca87d5f40a to before 7c4650ded49e5b88929ecbbb631efb8b0838e811Affected

LinuxLinux

2.6.36Affected
before 2.6.36Not affected
5.10.213 through 5.10.*Not affected
5.15.152 through 5.15.*Not affected
6.1.82 through 6.1.*Not affected
6.6.17 through 6.6.*Not affected
6.7.5 through 6.7.*Not affected
6.8 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.