CVE-2026-68456: Linux kernel · usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1117.124~20.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +41
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
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 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther 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 that fixes the issue by making the ueagle-atm driver wait for the firmware load to complete in the .disconnect() handler. Users should apply the official Linux kernel updates that include this fix. No additional mitigation actions are required beyond applying the patch.
Description
A race condition vulnerability in the Linux kernel's usb: atm: ueagle-atm driver was resolved by ensuring the driver waits for pre-firmware loading completion in the .disconnect() handler. The issue involved asynchronous firmware loading without waiting for completion, causing concurrent teardown and firmware loading operations when the device was unplugged. This could lead to unexpected kernel conditions and error reports. The fix waits for firmware load completion during device disconnect to prevent race conditions.
References
- nvd.nist.gov/vuln/detail/CVE-2026-68456 (opens in a new tab)
- git.kernel.org/stable/c/509b51327320bdeaef1969248177a446ded073ab (opens in a new tab)
- git.kernel.org/stable/c/76861031b43a18065d13f9ffb8595d25c7576005 (opens in a new tab)
- git.kernel.org/stable/c/bbfedc84714064ea4845e6b76f96316eb5bb65d8 (opens in a new tab)
- git.kernel.org/stable/c/c581e30ae5b332d8acef64475a211b3f82099941 (opens in a new tab)
- git.kernel.org/stable/c/d85f19aaef42a03e3e4765d659c761c8750a7f23 (opens in a new tab)
- git.kernel.org/stable/c/ddcdac47e1f2651c7be60e299f98faf981522797 (opens in a new tab)
- git.kernel.org/stable/c/e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf (opens in a new tab)
- git.kernel.org/stable/c/f2a6abc670104fc3e383ee3b1cf35c070485e3df (opens in a new tab)
- ubuntu.com/security/CVE-2026-68456 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-68456 (opens in a new tab)
- git.kernel.org/linus/e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)