Bug 2334518 (CVE-2024-56567)

Summary: CVE-2024-56567 kernel: ad7780: fix division by zero in ad7780_write_raw()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-12-27 15:07:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ad7780: fix division by zero in ad7780_write_raw()

In the ad7780_write_raw() , val2 can be zero, which might lead to a
division by zero error in DIV_ROUND_CLOSEST(). The ad7780_write_raw()
is based on iio_info's write_raw. While val is explicitly declared that
can be zero (in read mode), val2 is not specified to be non-zero.
Comment 1 Avinash Hanwate 2024-12-28 04:09:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122715-CVE-2024-56567-a306@gregkh/T