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vulnrichmentLinuxVULNRICHMENT:CVE-2022-48889
HistoryAug 21, 2024 - 6:10 a.m.

CVE-2022-48889 ASoC: Intel: sof-nau8825: fix module alias overflow

2024-08-2106:10:21
Linux
github.com
2
linux
kernel
vulnerability
fix
asoc
intel
module alias
overflow

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

no

Technical Impact

partial

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

ASoC: Intel: sof-nau8825: fix module alias overflow

The maximum name length for a platform_device_id entry is 20 characters
including the trailing NUL byte. The sof_nau8825.c file exceeds that,
which causes an obscure error message:

sound/soc/intel/boards/snd-soc-sof_nau8825.mod.c:35:45: error: illegal character encoding in string literal [-Werror,-Winvalid-source-encoding]
MODULE_ALIAS(“platform:adl_max98373_nau8825<U+0018><AA>”);
^~~~
include/linux/module.h:168:49: note: expanded from macro ‘MODULE_ALIAS’
^~~~~~
include/linux/module.h:165:56: note: expanded from macro ‘MODULE_INFO’
^~~~
include/linux/moduleparam.h:26:47: note: expanded from macro ‘__MODULE_INFO’
= __MODULE_INFO_PREFIX __stringify(tag) “=” info

I could not figure out how to make the module handling robust enough
to handle this better, but as a quick fix, using slightly shorter
names that are still unique avoids the build issue.

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

no

Technical Impact

partial

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