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CVE-2024-36977— usb: dwc3: Wait unconditionally after issuing EndXfer command

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致 SMMU 故障。

CVSS 7.8 · High EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux b353eb6dc285a0775a447f53e5b2a50bf3f9684f< 341eb08dbca9eae05308c442fbfab1813a44c97a affected
b353eb6dc285a0775a447f53e5b2a50bf3f9684f< ec96bcf5f96a7a5c556b0e881ac3e5c3924d542c affected
b353eb6dc285a0775a447f53e5b2a50bf3f9684f< 4a387e032909c6dc2b479452c5bbe9a252057925 affected
b353eb6dc285a0775a447f53e5b2a50bf3f9684f< 1ba145f05b5c8f0b1a947a0633b5edff5dd1f1c5 affected
b353eb6dc285a0775a447f53e5b2a50bf3f9684f< 1d26ba0944d398f88aaf997bda3544646cf21945 affected
6.1 affected
< 6.1 unaffected
6.1.92≤ 6.1.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-36977

Vulnerability Information
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Vulnerability Title
usb: dwc3: Wait unconditionally after issuing EndXfer command
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致 SMMU 故障。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux b353eb6dc285a0775a447f53e5b2a50bf3f9684f ~ 341eb08dbca9eae05308c442fbfab1813a44c97a -
Linux Linux 6.1 -

II. Public POCs for CVE-2024-36977

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III. Intelligence Information for CVE-2024-36977

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Other References for CVE-2024-36977 (5)

Same Patch Batch · Linux · 2024-06-18 · 4 CVEs total

CVE-2024-36974 7.8 HIGH net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP
CVE-2024-36976 Revert "media: v4l2-ctrls: show all owned controls in log_status"
CVE-2024-36975 KEYS: trusted: Do not use WARN when encode fails

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36977

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