Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: phy: qcom-qusb2: Fix NULL pointer dereference on early suspend Enabling runtime… (CVE-2025-71193)
A NULL pointer dereference vulnerability was identified and fixed in the Linux kernel's phy: qcom-qusb2 driver. The issue occurs due to enabling runtime power management before attaching the QPHY instance as driver data, which can cause runtime PM callbacks to dereference a NULL pointer sporadically during boot. This leads to kernel crashes. The vulnerability affects certain linux-hwe-edge kernel versions prior to 6.8.0-1055.56~22.04.1 and similar versions. A patch is available and should be applied to prevent this issue.
AI Analysis
Technical Summary
The Linux kernel's phy: qcom-qusb2 driver had a vulnerability where enabling runtime power management (PM) before attaching the QPHY instance as driver data created a race condition. This allowed runtime PM callbacks expecting valid driver data to dereference a NULL pointer, causing sporadic kernel crashes during boot. The fix involves reordering the calls to attach the QPHY instance as driver data before enabling runtime PM, preventing the NULL pointer dereference. This vulnerability was resolved in linux-hwe-edge kernel versions 6.8.0-1055.56~22.04.1 and later.
Potential Impact
This vulnerability can cause sporadic kernel crashes during system boot due to NULL pointer dereference in runtime PM callbacks. While it does not directly enable privilege escalation or code execution, the instability can disrupt system availability and reliability.
Mitigation Recommendations
An official patch is available and should be applied by updating the linux-hwe-edge kernel to version 6.8.0-1055.56~22.04.1 or later. After applying the update, a system reboot is required to complete the remediation. No additional mitigation steps are indicated by the vendor advisory.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: phy: qcom-qusb2: Fix NULL pointer dereference on early suspend Enabling runtime… (CVE-2025-71193)
Description
A NULL pointer dereference vulnerability was identified and fixed in the Linux kernel's phy: qcom-qusb2 driver. The issue occurs due to enabling runtime power management before attaching the QPHY instance as driver data, which can cause runtime PM callbacks to dereference a NULL pointer sporadically during boot. This leads to kernel crashes. The vulnerability affects certain linux-hwe-edge kernel versions prior to 6.8.0-1055.56~22.04.1 and similar versions. A patch is available and should be applied to prevent this issue.
Affected software
pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenialpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]~18.04.2?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]~18.04.2?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]~20.04.2?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]+cvm1.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]~20.04.3?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=focalpkg:deb/ubuntu/[email protected]~20.04.1?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=focalpkg:deb/ubuntu/[email 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protected]?arch=source&distro=bluefield/noblepkg:deb/ubuntu/[email protected]+fips1?arch=source&distro=fips-updates/noblepkg:deb/ubuntu/[email protected]+fips1?arch=source&distro=fips-updates/noblepkg:deb/ubuntu/[email protected]+fips1?arch=source&distro=fips-updates/noblepkg:deb/ubuntu/[email protected]+fips1?arch=source&distro=fips-updates/noblepkg:deb/ubuntu/[email protected]?arch=source&distro=realtime/noblepkg:deb/ubuntu/[email protected]?arch=source&distro=realtime/noblepkg:deb/ubuntu/[email protected]~24.04.1?arch=source&distro=realtime/noblepkg:deb/ubuntu/[email protected]~24.04.1?arch=source&distro=realtime/noblepkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingRun on your own infrastructure? 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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's phy: qcom-qusb2 driver had a vulnerability where enabling runtime power management (PM) before attaching the QPHY instance as driver data created a race condition. This allowed runtime PM callbacks expecting valid driver data to dereference a NULL pointer, causing sporadic kernel crashes during boot. The fix involves reordering the calls to attach the QPHY instance as driver data before enabling runtime PM, preventing the NULL pointer dereference. This vulnerability was resolved in linux-hwe-edge kernel versions 6.8.0-1055.56~22.04.1 and later.
Potential Impact
This vulnerability can cause sporadic kernel crashes during system boot due to NULL pointer dereference in runtime PM callbacks. While it does not directly enable privilege escalation or code execution, the instability can disrupt system availability and reliability.
Mitigation Recommendations
An official patch is available and should be applied by updating the linux-hwe-edge kernel to version 6.8.0-1055.56~22.04.1 or later. After applying the update, a system reboot is required to complete the remediation. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2025-71193
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:FIPS-updates:20.04:LTS","Ubuntu:Pro:FIPS:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Nvidia-BlueField:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:Pro:Realtime:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Nvidia-BlueField:24.04:LTS","Ubuntu:Pro:FIPS-updates:24.04:LTS","Ubuntu:Pro:Realtime:24.04:LTS","Ubuntu:25.10"]
Threat ID: 6a5b63a42d1edb114c8b8408
Added to database: 07/18/2026, 11:29:40 UTC
Last enriched: 08/22/2026, 22:01:47 UTC
Last updated: 09/10/2026, 19:24:57 UTC
Views: 8
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