unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket()
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Authored by markj on Aug 11 2026, 9:53 PM.

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rGbc232869fafe: unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket()
rG79e0b69ce8af: unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket()

Summary

Empty mchains cannot be copied with simple assignment.

Reported by: Jan Bramkamp
Fixes: d15792780760 ("unix: new implementation of unix/stream & unix/seqpacket")

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rG FreeBSD src repository

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Event Timeline

markj created this revision.Aug 11 2026, 9:53 PM

Herald added subscribers: olce, imp. · View Herald TranscriptAug 11 2026, 9:53 PM

markj requested review of this revision.Aug 11 2026, 9:53 PM

Harbormaster completed remote builds in B75526: Diff 183899.Aug 11 2026, 9:53 PM

glebius accepted this revision.Aug 12 2026, 4:37 PM

This revision is now accepted and ready to land.Aug 12 2026, 4:37 PM

Closed by commit rG79e0b69ce8af: unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket() (authored by markj). · Explain WhyAug 13 2026, 3:00 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG79e0b69ce8af: unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket().

markj added a commit: rGbc232869fafe: unix: Fix mchain handling in uipc_sosend_stream_or_seqpacket().Aug 24 2026, 4:30 PM

Revision Contents
Changeset List

Path

Size

sys/

kern/

uipc_usrreq.c

4 lines

tests/

sys/

kern/

unix_passfd_test.c

87 lines

Diff 183990

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sys/kern/uipc_usrreq.c