linuxkpi: avoid false KMSAN report
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Authored by chs on Thu, Sep 24, 12:09 AM.

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Subscribers

emaste

linuxkpi

Details

Reviewers

imp
bz
dumbbell

Summary

Rearrange the loop in node_tag_clear() to only load values from
the stack[] array for parts of the array that have been initialized
by the caller. Found with KMSAN.

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

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 77236
Build 74119: arc lint + arc unit

Event Timeline

chs created this revision.Thu, Sep 24, 12:09 AM

Herald added subscribers: linuxkpi, emaste. · View Herald TranscriptThu, Sep 24, 12:09 AM

chs requested review of this revision.Thu, Sep 24, 12:09 AM

Harbormaster completed remote builds in B77236: Diff 187549.Thu, Sep 24, 12:09 AM

chs added a parent revision: D59951: zfs: avoid disclosing uninitialized data in various zil functions.Thu, Sep 24, 12:10 AM

chs added a child revision: D59953: zfs: avoid false KMSAN reports.

bz accepted this revision.Thu, Sep 24, 7:01 AM

This revision is now accepted and ready to land.Thu, Sep 24, 7:01 AM

dumbbell accepted this revision.Tue, Sep 29, 4:18 PM

Revision Contents
Changeset List

Path

Size

sys/

compat/

linuxkpi/

common/

src/

linux_radix.c

14 lines

Diff 187549

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sys/compat/linuxkpi/common/src/linux_radix.c

linuxkpi: avoid false KMSAN reportAcceptedPublicActions