CVE-2024-36977
mediumpriority · track · 22EPSS 0.002 · 13 %ileDEEURUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.4–7.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (40)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-1402Linux Kernel: Mehrere SchwachstellenDeutsch2024-06-18csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um beliebigen Programmcode auszuführen, einen 'Denial of Service'-Zustand zu erzeugen oder einen unspezifischen Angriff durchzuführen.
also known as (4)
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sources
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references (18)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2024-36977cnnvd
- https://cxsecurity.com/cveshow/CVE-2024-36977/cnnvd
- https://git.kernel.org/stable/c/1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5cnnvd
- https://git.kernel.org/stable/c/1d26ba0944d398f88aaf997bda3544646cf21945cnnvd
- https://git.kernel.org/stable/c/341eb08dbca9eae05308c442fbfab1813a44c97acnnvd
- https://git.kernel.org/stable/c/4a387e032909c6dc2b479452c5bbe9a252057925cnnvd
- https://git.kernel.org/stable/c/ec96bcf5f96a7a5c556b0e881ac3e5c3924d542ccnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-19-06-2024-44542cnnvd
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