CVE-2023-54245

CVE-2023-54245 concerns a Linux kernel vulnerability in ASoC: codecs: tx-macro where a KASAN slab-out-of-bounds read occurred (regcache_flat_read path). The issue manifested under syzkaller as a read from regcache_flat_read traced through regmap_READ/UPDATE_BITS and snd_soc_component_write_field,...

kernel: ASoC: codecs: tx-macro: Fix for KASAN: slab-out-of-bounds

A slab-out-of-bounds read vulnerability was found in the Linux kernel's ASoC tx-macro codec driver. The decimator variable was incorrectly sized at 32 bits, causing regcacheflatread to access memory beyond the allocated slab when reading register cache values during the txmacrodigitalmute...