CVE-2026-74333
HighCVSS 8.4Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
In the Linux kernel, the ASoC driver for AMD (acp-sdw-legacy) has an out-of-bounds read in create_sdw_dailinks(). The loop iterates over the soc_dais array, which has exactly num_ends entries, but if all are initialized, the read goes past the end of the array, as reported by KASAN.
Risk Assessment
An out-of-bounds memory read can lead to system crashes or unpredictable behavior, especially on systems with AMD sound cards.
Recommendation
Apply the kernel patch that bounds the iteration to the allocated entry count to prevent the out-of-bounds read.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp-sdw-legacy: Bound DAI link iteration create_sdw_dailinks() walks soc_dais until it finds an entry with initialised cleared, but soc_dais is allocated with exactly num_ends entries. If all entries are initialised, the loop reads past the end of the array. This was reported by KASAN: BUG: KASAN: slab-out-of-bounds in mc_probe+0x26b3/0x2774 [snd_acp_sdw_legacy_mach] Read of size 1 Pass the allocated entry count to create_sdw_dailinks() and stop before reading past the array.