CVE-2026-46092
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: check for PCI upstream bridge existence pci_upstream_bridge() returns NULL if the device is on a root bus. If 8821CE is installed in the system with such a PCI topology, the probing routine will crash. This has probably been unnoticed as 8821CE is mostly supplied in laptops where there is a PCI-to-PCI bridge located upstream from the device. However the card might be installed on a system with different configuration. Check if the bridge does exist for the specific workaround to be applied. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.
Affected versions
Linux kernel versions
5.15.17,
5.16.3,
5.17
and later are affected. Fixed in
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46092 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/eb101d2abdcccb514ca4fccd3b278dd8267374f6
Frequently asked questions
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What is CVE-2026-46092?
CVE-2026-46092 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15.17 onward and has been patched in 7.1-rc1. CVE-2026-46092 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-46092?
Yes — CVE-2026-46092 has been patched. Fixed versions include 7.1-rc1. If you are running Linux kernel 5.15.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46092 actively exploited?
No — CVE-2026-46092 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.