ASoC: fsl: fsl_audmix: Validate written enum values

Summary

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.

Timeline

1. Aug 15, 2026, 5:57 AM UTCCVE published
2. Oct 16, 2026, 6:52 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 16, 2026, 6:55 PM UTCRecord last updated

Affected versions

• Linux Linux

  From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 7513831b90a38d55fa089e3e1b49691e467afee6; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in b4774a7da12b14fc37219ab4368d1907f9b5aca4; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 0b10c6203e62d9e7337cc401568b201f9bac79ec; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in b36d6d48faa6b1bb723b8f4e527c531a1a68520e; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a; From be1df61cf06efb355c90702e46b8d46f055acb4e · fixed in 3cd17e4e2871114d5579fa7bc8da66faf7fc1930

• Linux Linux

  5.2

• KernelLinux

  From 5.2.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8