oce(4): Account and trace mbufs before handing to hw
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Authored by cem on Jun 19 2020, 8:50 PM.

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rstone
markj
kevans

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rS362439: oce(4): Account and trace mbufs before handing to hw

Summary

Once tx mbufs have been handed to hardware, nothing serializes the tx
path against completion and potential use-after-free of the outbound
mbuf. Perform accounting and BPF tap before queueing to hardware to
avoid this race.

Submitted by: Steve Wirtz <steve_wirtz AT dell.com>

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Buildable 31835
Build 29395: arc lint + arc unit

Event Timeline

cem requested review of this revision.Jun 19 2020, 8:50 PM

cem created this revision.

Harbormaster completed remote builds in B31835: Diff 73354.Jun 19 2020, 8:51 PM

markj accepted this revision.Jun 20 2020, 12:31 AM

This revision is now accepted and ready to land.Jun 20 2020, 12:31 AM

rstone accepted this revision.Jun 20 2020, 5:04 PM

Closed by commit rS362439: oce(4): Account and trace mbufs before handing to hw (authored by cem). · Explain WhyJun 20 2020, 5:23 PM

This revision was automatically updated to reflect the committed changes.

cem added a commit: rS362439: oce(4): Account and trace mbufs before handing to hw.

Herald added a subscriber: imp. · View Herald TranscriptJun 20 2020, 5:23 PM

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sys/

dev/

oce/

oce_if.c

18 lines

Diff 73354

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oce(4): Account and trace mbufs before handing to hwClosedPublicActions