CVE-2026-63862
N/AIn 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".
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 6th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-63862/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-63862/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/abd3c1927d33766aef39c4640880e3d2637429c2
- https://git.kernel.org/stable/c/07a5ecb94768cbf76fe659e9924000e9ced0c8a6
- https://git.kernel.org/stable/c/946b31b5a699a2760ee52af0055e5ebf29c5f4cb
- https://git.kernel.org/stable/c/0a2d60edc3e57c9512e239ebdfd12204d3368560
- https://git.kernel.org/stable/c/215d4273347b9010a9deae378b0df79c163f707d
- https://git.kernel.org/stable/c/5573c44cb3fd01a9f62d569ae9ac870ef5f0e0ba