CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's ASoC (ALSA System on Chip) subsystem, specifically in the `ge_put_enum_double()` function, which fails to validate user-supplied enumeration indices before using them to index into a heap-allocated array. This oversight can lead to out-of-bounds memory reads, potentially resulting in information disclosure or system instability. Linux system administrators and developers working with audio drivers should prioritize addressing this issue to mitigate potential exploitation risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SDCA: Validate written enum value in ge_put_enum_double() ge_put_enum_double() passes the user-supplied enumeration index item[0] to snd_soc_enum_item_to_val() without checking it against the number of items in the enum: ret = snd_soc_enum_item_to_val(e, item[0]); snd_soc_enum_item_to_val() indexes the heap-allocated e->values[] array with that index (e->values is set from a devm_kcalloc() of e->items entries), so a control write with an out-of-range item[0] reads past the end of the values buffer. The bounds check in snd_soc_dapm_put_enum_double() only runs afterwards, so it does not prevent the read here. Reject an out-of-range item before using it, matching the other enum put handlers. This issue was pointed out by the Sashiko AI review bot while reviewing a related enum-validation series: https://lore.kernel.org/all/20260609125735.CEB651F00893@smtp.kernel.org/