جزئیات آسیب‌پذیری

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixed in the sibling drivers by commit bcfe5f76cc40 ("ASoC: codecs: rx-macro: fix accessing array out of bounds for enum type") and commit 0ea5eff7c606 ("ASoC: codecs: va-macro: fix accessing array out of bounds for enum type"), but tx-macro was missed. On 64-bit kernels built with CONFIG_SND_CTL_DEBUG, the elem value sanity check catches the 4 bytes written past the enumerated item and every read of these controls fails with -EINVAL: snd-sm8250 sound: control 2:0:0:DEC0 MODE:0: access overflow

• https://git.kernel.org/stable/c/dbc81b518f6936131bfd858be71cd4295136809c
• https://git.kernel.org/stable/c/f84f2c81d792cf1e65571108a3bdd2c29e09e995
• https://git.kernel.org/stable/c/48b76879f5bfc8584b99052510ac645c6ade8d2b
• https://git.kernel.org/stable/c/2ed3601e9db08fbdb071bd3d7bd8f115d6d871b0
• https://git.kernel.org/stable/c/b6baab796d11fb84c0e9444ffca91af5eab22c25
• https://git.kernel.org/stable/c/3ee3c26ceee562079596abc9bc3307dd56dab4ed
• https://git.kernel.org/stable/c/1ba381759e45d5d0442452cfa5c42e836191a568