Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek-gen3: Prevent leaking IRQ domains when IRQ not found In mtk_pcie_setup_irq(), the IRQ domains are allocated before the controller's IRQ is fetched. If the latter fails, the function directly returns an error, without cleaning up the allocated domains. Hence, reverse the order so that the IRQ domains are allocated after the controller's IRQ is found. This was flagged by Sashiko during a review of "[PATCH v6 0/7] PCI: mediatek-gen3: add power control support".
References
- https://git.kernel.org/stable/c/07a5ecb94768cbf76fe659e9924000e9ced0c8a6
- https://git.kernel.org/stable/c/0a2d60edc3e57c9512e239ebdfd12204d3368560
- https://git.kernel.org/stable/c/215d4273347b9010a9deae378b0df79c163f707d
- https://git.kernel.org/stable/c/5573c44cb3fd01a9f62d569ae9ac870ef5f0e0ba
- https://git.kernel.org/stable/c/946b31b5a699a2760ee52af0055e5ebf29c5f4cb
- https://git.kernel.org/stable/c/abd3c1927d33766aef39c4640880e3d2637429c2
FAQ
What is CVE-2026-63862?
CVE-2026-63862 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek-gen3: Prevent leaking IRQ domains when IRQ not found In mtk_pcie_setup_irq(), the IRQ domains are allocated before t...
How severe is CVE-2026-63862?
CVSS scoring is not yet available for CVE-2026-63862. Check NVD for updates.
Is there a patch for CVE-2026-63862?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.