In the Linux kernel, the following vulnerability has been resolved:
ata: sata_dwc_460ex: enable SATA interrupts only after IRQ handler is registered
sata_dwc_enable_interrupts() is called before platform_get_irq() and ata_host_activate(), leaving the SATA controllers interrupt mask enabled without a registered handler. If a later step fails (irq request, phy init, etc.) or if the controller asserts an interrupt during probe, the irq line may fire with no handler, causing a spurious interrupt storm.
Move sata_dwc_enable_interrupts() after ata_host_activate() so that interrupts are only unmasked once the handler is registered and the core is fully initialized.
References
- https://git.kernel.org/stable/c/23d4c50fdc0dfe3ad4f9647a3b7d486de807dcda
- https://git.kernel.org/stable/c/4bbc16a353a98023e5ddfca7c1fc0e49971cf4d0
- https://git.kernel.org/stable/c/5d0797d6940b8dc894f950c52f7af0b42cb55ed0
- https://git.kernel.org/stable/c/daa80b422ed920a3c0c45153020b0ad7af7fb5a5
- https://git.kernel.org/stable/c/fbe7df5d3a3aed2456667a4825e4ff98d6df6ca4