In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: Wait unconditionally after issuing EndXfer command
Currently all controller IP/revisions except DWC3_usb3 >= 310a
wait 1ms unconditionally for ENDXFER completion when IOC is not
set. This is because DWC_usb3 controller revisions >= 3.10a
supports GUCTL2[14: Rst_actbitlater] bit which allows polling
CMDACT bit to know whether ENDXFER command is completed.
Consider a case where an IN request was queued, and parallelly
soft_disconnect was called (due to ffs_epfile_release). This
eventually calls stop_active_transfer with IOC cleared, hence
send_gadget_ep_cmd() skips waiting for CMDACT cleared during
EndXfer. For DWC3 controllers with revisions >= 310a, we don't
forcefully wait for 1ms either, and we proceed by unmapping the
requests. If ENDXFER didn't complete by this time, it leads to
SMMU faults since the controller would still be accessing those
requests.
Fix this by ensuring ENDXFER completion by adding 1ms delay in
__dwc3_stop_active_transfer() unconditionally.
Metrics
Affected Vendors & Products
References
History
Wed, 13 Nov 2024 02:30:00 +0000
Type | Values Removed | Values Added |
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First Time appeared |
Redhat
Redhat enterprise Linux |
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CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
Vendors & Products |
Redhat
Redhat enterprise Linux |
Fri, 01 Nov 2024 15:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
cvssV3_1
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cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-06-18T19:27:58.319Z
Updated: 2024-11-05T09:29:12.442Z
Reserved: 2024-05-30T15:25:07.082Z
Link: CVE-2024-36977
Vulnrichment
Updated: 2024-08-02T03:43:50.431Z
NVD
Status : Awaiting Analysis
Published: 2024-06-18T20:15:13.517
Modified: 2024-11-01T15:35:14.983
Link: CVE-2024-36977
Redhat