CVE-2026-90280: Linux kernel · phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 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
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 fix has been implemented in the Linux kernel to address this issue by introducing a variable to track PHY initialization and prevent dereferencing an uninitialized pointer. Users should apply the updated kernel versions that include this fix. Since this is a kernel-level issue, upgrading to patched kernel versions is the recommended remediation.
Description
A vulnerability in the Linux kernel's Qualcomm qmp-usb PHY driver could cause a NULL pointer dereference during early runtime suspend. This occurs in a small timing window where the runtime suspend callback runs after pm_runtime_enable() but before pm_runtime_forbid(), leading to a crash due to dereferencing an uninitialized pointer. The issue also arises if runtime power management is re-enabled via sysfs before the PHY is initialized. The flaw has been fixed by introducing a variable to track PHY initialization status and avoid using an uninitialized pointer.
References
- ubuntu.com/security/CVE-2026-90280 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-90280 (opens in a new tab)
- git.kernel.org/linus/142c5593379273264474f31d5956b1a0065cd576 (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-90280.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)