Subj : [$] An API for handling arithmetic overflow
To   : All
From : LWN.net
Date : Thu Apr 09 2026 06:40:09



On March 31, Kees Cook shared

a patch set that represents the culmination of more than a year of work
toward eliminating the possibility of silent, unintentional integer overflow in
the kernel. Linus Torvalds was

not pleased with the approach, leading to a detailed discussion about the
meaning of "safe" integer operations and the design of APIs for handling integer
overflows. Eventually, the developers involved reached a consensus for a
different API that should make handling overflow errors in the kernel much less
of a hassle.

https://lwn.net/Articles/1065889/
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