CVE-2024-38780

In the Linux kernel, the following vulnerability has been resolved:

dma-buf/sw-sync: don't enable IRQ from syncprintobj()

Since commit a6aa8fca4d79 ("dma-buf/sw-sync: Reduce irqsave/irqrestore from known context") by error replaced spinunlockirqrestore() with spinunlockirq() for both syncdebugfsshow() and syncprintobj() despite syncprintobj() is called from syncdebugfsshow(), lockdep complains inconsistent lock state warning.

Use plain spin{lock,unlock}() for syncprintobj(), for syncdebugfsshow() is already using spin{lock,unlock}_irq().