iio: chemical: scd30: Cleanup initializations and fix sign-extension bug
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.9
References 8
git.kernel.org
- stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4
- stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6
- stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598
- stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065
- stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f
- stable/c/82accdd57404399eddf3d56fd9beda7c61307388
- stable/c/d49ff54b2784aa56a7c97982de713604de89d23a
- stable/c/60d877910a43c305b5165131b258a17b1d772d57