CVE-2026-23434 mtd: rawnand: serialize lock/unlock against other NAND operations

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nandlock and nandunlock call into chip-ops.lockarea/unlockarea without holding the NAND device lock. On controllers that implement SETFEATURES via multiple low-lev...