CVE-2022-48891

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> regulator: da9211: Use irq handler when ready<br /> <br /> If the system does not come from reset (like when it is kexec()), the<br /> regulator might have an IRQ waiting for us.<br /> <br /> If we enable the IRQ handler before its structures are ready, we crash.<br /> <br /> This patch fixes:<br /> <br /> [ 1.141839] Unable to handle kernel read from unreadable memory at virtual address 0000000000000078<br /> [ 1.316096] Call trace:<br /> [ 1.316101] blocking_notifier_call_chain+0x20/0xa8<br /> [ 1.322757] cpu cpu0: dummy supplies not allowed for exclusive requests<br /> [ 1.327823] regulator_notifier_call_chain+0x1c/0x2c<br /> [ 1.327825] da9211_irq_handler+0x68/0xf8<br /> [ 1.327829] irq_thread+0x11c/0x234<br /> [ 1.327833] kthread+0x13c/0x154