PT-2026-61179 · Linux · Linux

CVE-2026-63862 · Published 2026-07-19 · Updated 2026-07-19

NVD

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".

Related Identifiers

CVE-2026-63862

Affected Products

Linux

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-63862 · Security Note
• https://git.kernel.org/stable/c/07a5ecb94768cbf76fe659e9924000e9ced0c8a6 · Note
• https://git.kernel.org/stable/c/abd3c1927d33766aef39c4640880e3d2637429c2 · Note
• https://git.kernel.org/stable/c/0a2d60edc3e57c9512e239ebdfd12204d3368560 · Note
• https://git.kernel.org/stable/c/5573c44cb3fd01a9f62d569ae9ac870ef5f0e0ba · Note
• https://git.kernel.org/stable/c/215d4273347b9010a9deae378b0df79c163f707d · Note
• https://git.kernel.org/stable/c/946b31b5a699a2760ee52af0055e5ebf29c5f4cb · Note