CVE-2026-45896 mtd: intel-dg: Fix accessing regions before setting nregions

In the Linux kernel, the following vulnerability has been resolved: mtd: intel-dg: Fix accessing regions before setting nregions The regions array is counted by nregions, but it's set only after accessing it: UBSAN: array-index-out-of-bounds in drivers/mtd/devices/mtdinteldg.c:750:15 index 0 is o...

CVE-2026-45896

The CVE-2026-45896 issue affects the Linux kernel MTD Intel DG driver (mtd_intel_dg.c). A UBSAN array-index-out-of-bounds occurs because regions are counted by nregions but the array is accessed before nregions is set, at drivers/mtd/devices/mtd_intel_dg.c:750:15. The fix also corrects an undesir...