CVE-2023-53666 PUBLISHED

ASoC: codecs: wcd938x: fix missing mbhc init error handling

Assigner: Linux
Reserved: 07.10.2025 Published: 07.10.2025 Updated: 07.10.2025

In the Linux kernel, the following vulnerability has been resolved:

ASoC: codecs: wcd938x: fix missing mbhc init error handling

MBHC initialisation can fail so add the missing error handling to avoid dereferencing an error pointer when later configuring the jack:

<pre>Unable to handle kernel paging request at virtual address fffffffffffffff8 pc : wcd_mbhc_start+0x28/0x380 [snd_soc_wcd_mbhc] lr : wcd938x_codec_set_jack+0x28/0x48 [snd_soc_wcd938x] Call trace: wcd_mbhc_start+0x28/0x380 [snd_soc_wcd_mbhc] wcd938x_codec_set_jack+0x28/0x48 [snd_soc_wcd938x] snd_soc_component_set_jack+0x28/0x8c [snd_soc_core] qcom_snd_wcd_jack_setup+0x7c/0x19c [snd_soc_qcom_common] sc8280xp_snd_init+0x20/0x2c [snd_soc_sc8280xp] snd_soc_link_init+0x28/0x90 [snd_soc_core] snd_soc_bind_card+0x628/0xbfc [snd_soc_core] snd_soc_register_card+0xec/0x104 [snd_soc_core] devm_snd_soc_register_card+0x4c/0xa4 [snd_soc_core] sc8280xp_platform_probe+0xf0/0x108 [snd_soc_sc8280xp] </pre>

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from bcee7ed09b8e70b65d5c04f5d1acd2cf4213c2f3 to 5a34d252052b5da743ef82591c860fc947384d4e (excl.)
  • affected from bcee7ed09b8e70b65d5c04f5d1acd2cf4213c2f3 to bb241ae928c694e365c30c888c9eb02dcc812dfd (excl.)
  • affected from bcee7ed09b8e70b65d5c04f5d1acd2cf4213c2f3 to 31ee704c84c4bf4df8521ef1478c161f710d0f94 (excl.)
  • affected from bcee7ed09b8e70b65d5c04f5d1acd2cf4213c2f3 to 7dfae2631bfbdebecd35fe7b472ab3cc95c9ed66 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.15 is affected
  • unaffected from 0 to 5.15 (excl.)
  • unaffected from 5.15.123 to 5.15.* (incl.)
  • unaffected from 6.1.42 to 6.1.* (incl.)
  • unaffected from 6.4.7 to 6.4.* (incl.)
  • unaffected from 6.5 to * (incl.)

References