CVE-2026-90403 wifi: rtlwifi: pci: fix error path in rtl_pci_probe()
A bug in the rtlwifi PCI driver error path causes resource leaks, potentially leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-90403?
CVE-2026-90403 is a high-severity vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtlwifi: pci: fix error path in rtl_pci_probe()
In the last error path in rtl_pci_probe(), the cleanup functions are skipped due to a wrong goto label. Moreover, the successful call to rtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to be reverted. Fix this issue by updating the labels and adding the relevant cleanup functions to the last error path.
Which versions are affected by CVE-2026-90403?
How do I fix CVE-2026-90403?
Apply the vendor's patch.
Is CVE-2026-90403 being exploited?
There is no known exploitation of CVE-2026-90403 in the wild and no public exploit code.
Sources
Also known as AZL-102909, BELL-CVE-2026-90403, DEBIAN-CVE-2026-90403, GHSA-7g5x-2qhh-7xcv, UBUNTU-CVE-2026-90403.