CVE-2025-68249: Linux kernel · most: usb: hdm_probe: Fix calling put_device() before device initialization
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1100.107~20.04.2 : 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
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1100.107~20.04.2, 5.15.0-1110.119~20.04.1, 5.15.0-1100.109~20.04.1 +67
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@6.17.0-14.14?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1007.7?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1008.8?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@6.17.0-1007.7?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1007.7?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 fix is included in the Ubuntu security update USN-8029-1 and other Linux kernel security releases. Users should update their systems to the fixed kernel versions to resolve this issue. No additional mitigation is required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's most: usb: hdm_probe component was fixed to correct an error where put_device() was called before device initialization. This issue caused a device core warning and improper handling of an uninitialized kobject, potentially leading to kernel instability. The flaw was addressed by changing the error handling path to free the allocated memory directly instead of calling put_device() prematurely. Multiple Linux kernel versions are affected. A patch is available as part of a broader Linux kernel security update.
References
- ubuntu.com/security/CVE-2025-68249 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68249 (opens in a new tab)
- git.kernel.org/linus/a8cc9e5fcb0e2eef21513a4fec888f5712cb8162 (opens in a new tab)
- git.kernel.org/stable/c/3509c748e79435d09e730673c8c100b7f0ebc87c (opens in a new tab)
- git.kernel.org/stable/c/4af0eedbdb4df7936bf43a28e31af232744d2620 (opens in a new tab)
- git.kernel.org/stable/c/6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95 (opens in a new tab)
- git.kernel.org/stable/c/7d851f746067b8ee5bac9c262f326ace0a6ea253 (opens in a new tab)
- git.kernel.org/stable/c/a8cc9e5fcb0e2eef21513a4fec888f5712cb8162 (opens in a new tab)
- git.kernel.org/stable/c/ad2be44882716dc3589fbc5572cc13f88ead6b24 (opens in a new tab)
- git.kernel.org/stable/c/c400410fe0580dd6118ae8d60287ac9ce71a65fd (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8030-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8033-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8033-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8033-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8034-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8033-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8033-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8034-2 (opens in a new tab)