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CVE-2026-93819

Unknown

Last modified

CVE-2026-93819 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log].

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 031337ace2d1c22a447da6390716fe92592cdd6e, < c57b971765f835138fa2fce3f2a171b004cbb114; >= 031337ace2d1c22a447da6390716fe92592cdd6e, < a568939487dcbc1a3e341208585e224be897e25e; >= 031337ace2d1c22a447da6390716fe92592cdd6e, < a29812a55da8d0dbeb071b26ac428c338e3fc389
LinuxLinux4.20

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93819?
In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]
How severe is CVE-2026-93819?
Severity scoring for CVE-2026-93819 is pending analysis.
How do I fix CVE-2026-93819?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST