ffs: Correct the input size check in sysctl_ffs_fsck()
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Authored by markj on May 31 2021, 7:05 PM.

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mckusick

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rGb2f9575646f8: ffs: Correct the input size check in sysctl_ffs_fsck()

Summary

Make sure we return an error if no input was specified, or if it is
shorter than the size of the command structure.

Reported by: KMSAN
MFC after: 1 week

Diff Detail

Repository

rS FreeBSD src repository - subversion

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No Test Coverage

Build Status

Buildable 39609
Build 36498: arc lint + arc unit

Event Timeline

markj created this revision.May 31 2021, 7:05 PM

Herald added a subscriber: imp. · View Herald TranscriptMay 31 2021, 7:05 PM

markj requested review of this revision.May 31 2021, 7:05 PM

Harbormaster completed remote builds in B39609: Diff 90200.May 31 2021, 7:05 PM

Good catch, definitely needed.

This revision is now accepted and ready to land.May 31 2021, 10:53 PM

Closed by commit rGb2f9575646f8: ffs: Correct the input size check in sysctl_ffs_fsck() (authored by markj). · Explain WhyMay 31 2021, 11:10 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rGb2f9575646f8: ffs: Correct the input size check in sysctl_ffs_fsck().

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sys/

ufs/

ffs/

ffs_alloc.c

4 lines

Diff 90200

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ffs: Correct the input size check in sysctl_ffs_fsck()ClosedPublicActions