CVE-2025-38633

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> clk: spacemit: mark K1 pll1_d8 as critical<br /> <br /> The pll1_d8 clock is enabled by the boot loader, and is ultimately a<br /> parent for numerous clocks, including those used by APB and AXI buses.<br /> Guodong Xu discovered that this clock got disabled while responding to<br /> getting -EPROBE_DEFER when requesting a reset controller.<br /> <br /> The needed clock (CLK_DMA, along with its parents) had already been<br /> enabled. To respond to the probe deferral return, the CLK_DMA clock<br /> was disabled, and this led to parent clocks also reducing their enable<br /> count. When the enable count for pll1_d8 was decremented it became 0,<br /> which caused it to be disabled. This led to a system hang.<br /> <br /> Marking that clock critical resolves this by preventing it from being<br /> disabled.<br /> <br /> Define a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to<br /> be supplied for a CCU_FACTOR_GATE clock.