netmap: Use ckdint.h helpers to check for overflow
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Authored by markj on Mon, Aug 17, 6:43 PM.

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imp

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vmaffione

Summary

This addresses a bug in the addition overflow check added in commit
319414a926af ("netmap: Handle overflow when computing ring sizes"): that
overflow wasn't actually caught by the check because "len" is promoted
to size_t.

Fixes: 319414a926af ("netmap: Handle overflow when computing ring sizes")

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Repository

rG FreeBSD src repository

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Build Status

Buildable 75656
Build 72539: arc lint + arc unit

Event Timeline

markj created this revision.Mon, Aug 17, 6:43 PM

Herald added a subscriber: imp. · View Herald TranscriptMon, Aug 17, 6:43 PM

markj requested review of this revision.Mon, Aug 17, 6:43 PM

Harbormaster completed remote builds in B75656: Diff 184212.Mon, Aug 17, 6:43 PM

Revision Contents
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Path

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sys/

dev/

netmap/

netmap_mem2.c

10 lines

Diff 184212

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sys/dev/netmap/netmap_mem2.c

netmap: Use ckdint.h helpers to check for overflowNeeds ReviewPublicActions