Date: Thu, 16 May 2019 08:42:20 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r347656 - stable/11/sys/netinet Message-ID: <201905160842.x4G8gKHd022451@repo.freebsd.org>
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Author: tuexen Date: Thu May 16 08:42:20 2019 New Revision: 347656 URL: https://svnweb.freebsd.org/changeset/base/347656 Log: MFC r343951: Fix locking for IPPROTO_SCTP level SCTP_DEFAULT_PRINFO socket option. This problem occurred when calling setsockopt() will invalid parameters. This issue was found by running syzkaller. Modified: stable/11/sys/netinet/sctp_usrreq.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netinet/sctp_usrreq.c ============================================================================== --- stable/11/sys/netinet/sctp_usrreq.c Thu May 16 08:40:10 2019 (r347655) +++ stable/11/sys/netinet/sctp_usrreq.c Thu May 16 08:42:20 2019 (r347656) @@ -6209,6 +6209,9 @@ sctp_setopt(struct socket *so, int optname, void *optv SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id); if (info->pr_policy > SCTP_PR_SCTP_MAX) { + if (stcb) { + SCTP_TCB_UNLOCK(stcb); + } SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); error = EINVAL; break;
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