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Differential D50893

tcp: Fix the SO_REUSEPORT_LB check
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Authored by markj on Jun 17 2025, 1:22 AM.
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asomers
imp
melifaro

Details

Reviewers
glebius
Group Reviewers
transport
Commits
rGba3d547967c8: tcp: Fix the SO_REUSEPORT_LB check
Summary

This needs to happen in tcp_connect() rather than tcp_usr_connect(), as
the latter is reachable by implied connect() via sendto().

Reported by: syzbot+eecc86e6952fd9ba9f11@syzkaller.appspotmail.com
Fixes: c7f803c71dae ("inpcb: fix a panic with SO_REUSEPORT_LB + connect(2) misuse")

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 64927
Build 61810: arc lint + arc unit

Event Timeline

markj created this revision.Jun 17 2025, 1:22 AM
Herald added a reviewer: transport. · View Herald TranscriptJun 17 2025, 1:22 AM
Herald added subscribers: melifaro, asomers, imp. · View Herald Transcript
markj requested review of this revision.Jun 17 2025, 1:22 AM
Harbormaster completed remote builds in B64927: Diff 157152.Jun 17 2025, 1:22 AM
glebius accepted this revision.Jun 17 2025, 3:21 AM
This revision was not accepted when it landed; it landed in state Needs Review.Jun 17 2025, 11:28 AM
Closed by commit rGba3d547967c8: tcp: Fix the SO_REUSEPORT_LB check (authored by markj). · Explain Why
This revision was automatically updated to reflect the committed changes.
markj added a commit: rGba3d547967c8: tcp: Fix the SO_REUSEPORT_LB check.

Revision Contents
Changeset List

PathSize
sys/
netinet/
8 lines
tests/
sys/
netinet/
10 lines

Diff 157152

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sys/netinet/tcp_usrreq.c

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tests/sys/netinet/so_reuseport_lb_test.c

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