CVE-2025-68194: Linux kernel · media: imon: make send_packet() more robust
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, 16:06 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% 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, 5.15.0-1114.123~20.04.1 +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?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle?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
An official fix is available and should be applied. The patch improves error recovery in the imon driver and adds a timeout to prevent indefinite hangs. Users should update their Linux kernel to a version including this fix. No additional mitigation actions are required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's media imon driver caused hung tasks by indefinitely holding device locks due to poor error recovery in USB packet handling. The issue involved infinite retries on certain USB protocol errors and a lack of timeout in waiting for packet completion, leading to system stalls. The vulnerability has been addressed by improving error handling and adding a timeout to prevent indefinite hangs.
References
- ubuntu.com/security/CVE-2025-68194 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68194 (opens in a new tab)
- git.kernel.org/linus/eecd203ada43a4693ce6fdd3a58ae10c7819252c (opens in a new tab)
- git.kernel.org/stable/c/0213e4175abbb9dfcbf7c197e3817d527f459ad5 (opens in a new tab)
- git.kernel.org/stable/c/26f6a1dd5d81ad61a875a747698da6f27abf389b (opens in a new tab)
- git.kernel.org/stable/c/519737af11c03590819a6eec2ad532cfdb87ea63 (opens in a new tab)
- git.kernel.org/stable/c/667afd4681781f60a644cd0d2ee6c59cb1c36208 (opens in a new tab)
- git.kernel.org/stable/c/8231e80118463be5598daaf266c1c83650f1948b (opens in a new tab)
- git.kernel.org/stable/c/eecd203ada43a4693ce6fdd3a58ae10c7819252c (opens in a new tab)
- git.kernel.org/stable/c/f58ab83b7b7133e6baefe03a46846c4f6ce45e2f (opens in a new tab)
- git.kernel.org/stable/c/f7f3ecb4934fff782fa9bb1cd16e2290c041b22d (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-8029-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8048-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-3 (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)