tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Ingo Molnar:
"Fix a race in the IRQ resend mechanism, which can result in a NULL
dereference crash"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Prevent NULL pointer dereference in resend_irqs()

Linus Torvalds 95779fe8 840ce8f8

+2
+2
kernel/irq/resend.c
··· 36 36 irq = find_first_bit(irqs_resend, nr_irqs); 37 37 clear_bit(irq, irqs_resend); 38 38 desc = irq_to_desc(irq); 39 + if (!desc) 40 + continue; 39 41 local_irq_disable(); 40 42 desc->handle_irq(desc); 41 43 local_irq_enable();