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Differential D503

fix undefined-shift in block_filter
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Authored by ltx on Jun 12 2020, 5:18 AM.

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Reviewers
gniibe
Group Reviewers
gnupg
Maniphest Tasks
T4975: undefined-shift in block_filter
Commits
rKLEOPATRA5e9d402be380: Yet another place with deprecated API
Summary

force to 'size_t' before shift

* common/iobuf.c (block_filter): add size_t.
  • Signed-off-by: lutianxiong <lutianxiong@huawei.com>
Test Plan
  1. make check
  2. run oss-fuzz

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Event Timeline

ltx created this revision.Jun 12 2020, 5:18 AM
ltx added a task: T4975: undefined-shift in block_filter.Jun 12 2020, 5:20 AM
ltx edited the summary of this revision. (Show Details)Jun 12 2020, 5:24 AM
ltx edited the test plan for this revision. (Show Details)
ltx edited the summary of this revision. (Show Details)
ltx edited the test plan for this revision. (Show Details)
gniibe added a subscriber: gniibe.Jul 10 2020, 4:26 AM

Thanks for the patch.
I see your point in T4975: undefined-shift in block_filter.
You are right that we have a problem of possible overflow (which could be kicked by fuzzing) here.
(The actual impact would be small, though).

gniibe accepted this revision.Dec 7 2020, 4:07 AM
This revision is now accepted and ready to land.Dec 7 2020, 4:07 AM
• Fred23 added a commit: rKLEOPATRA5e9d402be380: Yet another place with deprecated API.Jun 20 2021, 6:09 PM

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common/
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common/iobuf.c

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