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Differential D58293

bhyve: check upper bounds for value from qsz
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Authored by tsoome on Fri, Jul 17, 8:14 AM.
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bcran
bnovkov
chuck
dab
imp
rgrimes

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chuck
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bhyve
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rGa0486017c2a4: bhyve: check upper bounds for value from qsz
Summary

The max_qentries in pci_nvme_softc is uint16_t and
too large int may get truncated to invalid value.
While there, use local declarations for val.

Suggested by: Bill Sommerfeld

Diff Detail

Repository
rG FreeBSD src repository
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Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 74928
Build 71811: arc lint + arc unit

Event Timeline

tsoome created this revision.Fri, Jul 17, 8:14 AM
Herald added a reviewer: bhyve. · View Herald TranscriptFri, Jul 17, 8:14 AM
Herald added subscribers: dab, bcran, rgrimes, imp. · View Herald Transcript
tsoome requested review of this revision.Fri, Jul 17, 8:14 AM
Harbormaster completed remote builds in B74864: Diff 182107.Fri, Jul 17, 8:14 AM
bnovkov added a subscriber: bnovkov.Fri, Jul 17, 2:43 PM
bnovkov added inline comments.
usr.sbin/bhyve/pci_nvme.c
3188

Why aren't we defining val at the start of the function anymore?

chuck accepted this revision as: chuck.Sat, Jul 18, 10:26 PM
chuck added a subscriber: chuck.

Assuming you restore the declaration of val as @bnovkov suggested, LGTM.

This revision is now accepted and ready to land.Sat, Jul 18, 10:26 PM
tsoome updated this revision to Diff 182218.Sun, Jul 19, 1:27 PM

declare val at the beginning of function.

This revision now requires review to proceed.Sun, Jul 19, 1:27 PM
Harbormaster completed remote builds in B74928: Diff 182218.Sun, Jul 19, 1:27 PM
tsoome marked an inline comment as done.Sun, Jul 19, 1:27 PM
chuck accepted this revision as: chuck.Sun, Jul 19, 3:38 PM
This revision is now accepted and ready to land.Sun, Jul 19, 3:38 PM
Closed by commit rGa0486017c2a4: bhyve: check upper bounds for value from qsz (authored by tsoome). · Explain WhyTue, Jul 21, 7:08 AM
This revision was automatically updated to reflect the committed changes.
tsoome added a commit: rGa0486017c2a4: bhyve: check upper bounds for value from qsz.

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PathSize
usr.sbin/
bhyve/
2 lines

Diff 182218

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usr.sbin/bhyve/pci_nvme.c

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