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

iio: chemical: scd30: Cleanup initializations and fix sign-extension bug

Include linux/bitfield.h for FIELD_GET().

Create new macros for bit manipulation in combination with manual bit
manipulation being replaced with FIELD_GET().

The current variable declaration and initializations are barely readable
and use comma separations across multiple lines. Refactor the
initializations so that mantissa and exp have separate declarations and
sign gets initialized later.

In addition (and due to the nature of the cleanup), fix a sign-extension
bug where, float32 would get bitwise anded with ~BIT(31)
(which is 0xFFFFFFFF7FFFFFFF) which corrupted the exponent.

https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4

https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6

https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598

https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57

https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388

https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f

https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065

https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a

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