CVE-2026-74293

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl: fsl_audmix: Validate written enum values fsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src() convert the user-provided enum item with snd_soc_enum_item_to_val() before checking whether the item is within the enum's item count. The generic snd_soc_put_enum_double() helper performs that validation, but these callbacks use the converted value first: the clock-source path tests it with BIT(), and the output-source path indexes the prms transition table with it. Reject out-of-range enum items before converting them.

References

• https://git.kernel.org/stable/c/0b10c6203e62d9e7337cc401568b201f9bac79ec
• https://git.kernel.org/stable/c/0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c
• https://git.kernel.org/stable/c/3cd17e4e2871114d5579fa7bc8da66faf7fc1930
• https://git.kernel.org/stable/c/5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a
• https://git.kernel.org/stable/c/7513831b90a38d55fa089e3e1b49691e467afee6