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Differential D31229

kern: mountroot: avoid fd leak in .md parsing
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Authored by kevans on Jul 20 2021, 10:32 AM.
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imp

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trasz
kib
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rG23ecfa9d5bc4: kern: mountroot: avoid fd leak in .md parsing
Summary

parse_dir_md() opens /dev/mdctl but only closes the resulting fd on
success, not upon failure of the ioctl or when we exceed the md unit
max.

Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
X-NetApp-PR: #62

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Lint Passed
Unit
No Test Coverage
Build Status
Buildable 40548
Build 37437: arc lint + arc unit

Event Timeline

kevans created this revision.Jul 20 2021, 10:32 AM
Herald added a subscriber: imp. · View Herald TranscriptJul 20 2021, 10:32 AM
kevans requested review of this revision.Jul 20 2021, 10:32 AM
Harbormaster completed remote builds in B40548: Diff 92480.Jul 20 2021, 10:32 AM
kib accepted this revision.Jul 20 2021, 2:28 PM
kib added inline comments.
sys/kern/vfs_mountroot.c
641

I do not believe there is much use in preserving close' error.

This revision is now accepted and ready to land.Jul 20 2021, 2:28 PM
Closed by commit rG23ecfa9d5bc4: kern: mountroot: avoid fd leak in .md parsing (authored by kevans). · Explain WhyJul 21 2021, 3:19 PM
This revision was automatically updated to reflect the committed changes.
kevans marked an inline comment as done.
kevans added a commit: rG23ecfa9d5bc4: kern: mountroot: avoid fd leak in .md parsing.

Revision Contents
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PathSize
sys/
kern/
11 lines

Diff 92480

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sys/kern/vfs_mountroot.c

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