Vulnerability CVE-2024-42138
Published: 2024-07-30

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

mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file

In case of invalid INI file mlxsw_linecard_types_init() deallocates memory
but doesn't reset pointer to NULL and returns 0. In case of any error
occurred after mlxsw_linecard_types_init() call, mlxsw_linecards_init()
calls mlxsw_linecard_types_fini() which performs memory deallocation again.

Add pointer reset to NULL.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

 References:
https://git.kernel.org/stable/c/ab557f5cd993a3201b09593633d04b891263d5c0
https://git.kernel.org/stable/c/f8b55a465b0e8a500179808166fe9420f5c091a1
https://git.kernel.org/stable/c/9af7437669b72f804fc4269f487528dbbed142a2
https://git.kernel.org/stable/c/8ce34dccbe8fa7d2ef86f2d8e7db2a9b67cabfc3
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