CVE-2024-36977
USB: Linux DWc3 EndXfer Command Unconditional Wait
Description
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.
INFO
Published Date :
June 18, 2024, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 9:22 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
References to Advisories, Solutions, and Tools
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CVE-2024-36977.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-36977 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-36977 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5 Added Reference https://git.kernel.org/stable/c/1d26ba0944d398f88aaf997bda3544646cf21945 Added Reference https://git.kernel.org/stable/c/341eb08dbca9eae05308c442fbfab1813a44c97a Added Reference https://git.kernel.org/stable/c/4a387e032909c6dc2b479452c5bbe9a252057925 Added Reference https://git.kernel.org/stable/c/ec96bcf5f96a7a5c556b0e881ac3e5c3924d542c -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 01, 2024
Action Type Old Value New Value Added CVSS V3.1 CISA-ADP AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 18, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/341eb08dbca9eae05308c442fbfab1813a44c97a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ec96bcf5f96a7a5c556b0e881ac3e5c3924d542c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4a387e032909c6dc2b479452c5bbe9a252057925 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1d26ba0944d398f88aaf997bda3544646cf21945 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-36977 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-36977
weaknesses.