In the Linux kernel, the following vulnerability has been resolved:
ASoC: codecs: hdac_hdmi: Validate written enum value
hdac_hdmi_set_pin_port_mux() uses the written enum value to index the texts array before calling snd_soc_dapm_put_enum_double(), which validates that the value is within the enum item range.
An out-of-range value can therefore make the driver read past the texts array before the helper rejects the write. Move the lookup after the helper has accepted the value.
References
- https://git.kernel.org/stable/c/0b08baeccdcf52fad328ad645f5b4fbee04eea34
- https://git.kernel.org/stable/c/216336418c007c4b44c650acf2fd3d2de5bb81e8
- https://git.kernel.org/stable/c/7f02e9064b6f84e7f93c72f134306271eb4f7de4
- https://git.kernel.org/stable/c/8cbf24714d6b3f553fc959632c9781176a73a9a7
- https://git.kernel.org/stable/c/9131e4b023e0db5764680034bdc94aeae0b0f33d
- https://git.kernel.org/stable/c/bc464a6a9e352daa17b1636c090cf3185710b9a0
- https://git.kernel.org/stable/c/d8961b5c7889b6ecc00f1409d36826df1665df27