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Differential D27350

pf tests: provoke tag hashing panic
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Authored by kp on Nov 24 2020, 10:04 AM.
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rS367990: pf tests: provoke tag hashing panic
Summary

Attempt to provoke the panic fixed in rXXXXX.

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rS FreeBSD src repository - subversion
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Tests Not Applicable

Event Timeline

kp created this revision.Nov 24 2020, 10:04 AM
Herald added subscribers: melifaro, farrokhi, imp. · View Herald TranscriptNov 24 2020, 10:04 AM
kp requested review of this revision.Nov 24 2020, 10:04 AM
Harbormaster completed remote builds in B34996: Diff 79925.Nov 24 2020, 10:04 AM
kp mentioned this in D27346: pf: Fix tag hashing.Nov 24 2020, 10:05 AM
markj added a subscriber: markj.Nov 24 2020, 2:11 PM
markj added inline comments.
tests/sys/netpfil/pf/ioctl/validation.c
819 ↗(On Diff #79925)

To provoke the panic you'd need a long tag name, so I'm not sure how this can accomplish that.

markj accepted this revision.Nov 24 2020, 2:35 PM
markj added inline comments.
tests/sys/netpfil/pf/ioctl/validation.c
819 ↗(On Diff #79925)

I see, match_tagname is full of garbage, rather than tagname.

This revision is now accepted and ready to land.Nov 24 2020, 2:35 PM
kp added inline comments.Nov 24 2020, 3:01 PM
tests/sys/netpfil/pf/ioctl/validation.c
819 ↗(On Diff #79925)

Yeah, there are a couple of fields that are passed through to tagname2hashindex().
Arguably this test should try all of them.

Closed by commit rS367990: pf tests: provoke tag hashing panic (authored by kp). · Explain WhyNov 24 2020, 5:33 PM
This revision was automatically updated to reflect the committed changes.
kp added a commit: rS367990: pf tests: provoke tag hashing panic.

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PathSize
head/
tests/
sys/
netpfil/
pf/
ioctl/
38 lines

Diff 79939

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head/tests/sys/netpfil/pf/ioctl/validation.c

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