CVE-2025-68287: Linux kernel · usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1103.110~20.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 10:12 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1103.110~20.04.1, 5.15.0-1110.119~20.04.1, 5.15.0-1103.112~20.04.1 +70
Exploitation evidence
Disclosed: evidence found.
CVE published 16 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux@6.17.0-19.19?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1010.10?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied to affected Linux kernel versions. The vendor advisory confirms that this issue has been fixed. Users should update their Linux kernel to a version including this fix to prevent crashes related to this race condition.
Description
A race condition vulnerability in the Linux kernel's USB subsystem (dwc3 driver) was fixed. The flaw involved unsynchronized concurrent calls to dwc3_remove_requests(), causing premature freeing of USB requests and potential kernel crashes due to use-after-free conditions. The issue arises from three distinct execution paths interacting without proper synchronization, particularly during USB reset handling and adb root operations. The patch adds checks to ensure requests are not processed after completion, preventing crashes.
References
- ubuntu.com/security/CVE-2025-68287 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68287 (opens in a new tab)
- git.kernel.org/linus/e4037689a366743c4233966f0e74bc455820d316 (opens in a new tab)
- git.kernel.org/stable/c/467add9db13219101f14b6cc5477998b4aaa5fe2 (opens in a new tab)
- git.kernel.org/stable/c/47de14d741cc4057046c9e2f33df1f7828254e6c (opens in a new tab)
- git.kernel.org/stable/c/67192e8cb7f941b5bba91e4bb290683576ce1607 (opens in a new tab)
- git.kernel.org/stable/c/7cfb62888eba292fa35cd9ddbd28ce595f60e139 (opens in a new tab)
- git.kernel.org/stable/c/afc0e34f161ce61ad351303c46eb57bd44b8b090 (opens in a new tab)
- git.kernel.org/stable/c/e4037689a366743c4233966f0e74bc455820d316 (opens in a new tab)
- git.kernel.org/stable/c/fa5eaf701e576880070b60922200557ae4aa54e1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8095-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8100-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8095-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8095-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-4 (opens in a new tab)