[Bug 239250] need to define limits on unix socket control messages

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 25 May 2022 20:31:12 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239250

--- Comment #1 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=23402c83f4fc2db45f0435ed106791828a6522df

commit 23402c83f4fc2db45f0435ed106791828a6522df
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2022-05-25 20:28:40 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2022-05-25 20:28:40 +0000

    tests/unix_passfd: sending many and too many SCM_RIGHTS

    o Exercise bounds checking when sending large set of file descriptors,
      that can't fit into single control mbuf.
    o Exercise resource limits checks when receiving a large sets.
    o Check that socket isn't left in a completely stuck state when we can't
      receive SCM_RIGHTS due to limits.  Current SOCK_STREAM socket would
      free the control, but leave the data in.  This seems to be a legit
      behavior for a stream socket, as we don't want holes in the data.

    PR:                     239250
    Reviewed by:            markj
    Differential revision:  https://reviews.freebsd.org/D35315

 tests/sys/kern/unix_passfd_test.c | 69 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 68 insertions(+), 1 deletion(-)

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