Differential D59958

ipi: avoid false KMSAN / KASAN reports in ipi_swi_handler()
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Authored by chs on Sep 24 2026, 12:10 AM.

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imp
markj
kib
jhb

Summary

add missing KASAN/KMSAN marking of the trapframe in ipi_swi_handler().
Found with KMSAN.

Sponsored by: Netflix
Assisted-By: Claude Code - Opus 5 (1M context)

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 77242
Build 74125: arc lint + arc unit

Event Timeline

chs requested review of this revision.Sep 24 2026, 12:10 AM

chs created this revision.

Harbormaster completed remote builds in B77242: Diff 187555.Sep 24 2026, 12:10 AM

chs added a parent revision: D59957: pfil: avoid disclosing uninitialized data in pfil ioctls.Sep 24 2026, 12:10 AM

chs added a child revision: D59959: opencrypto: avoid false KMSAN reports.

I'm pretty sure this is right, but having another set of eyes wouldn't hurt.

This revision is now accepted and ready to land.Sep 29 2026, 10:31 PM

kib accepted this revision.Sep 30 2026, 3:26 AM

markj accepted this revision.Sep 30 2026, 1:32 PM

Revision Contents
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sys/

x86/

mp_x86.c

3 lines

Diff 187555

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ipi: avoid false KMSAN / KASAN reports in ipi_swi_handler()AcceptedPublicActions