git: f6599909ba6e - stable/13 - tcp rack: fix memory corruption

The branch stable/13 has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=f6599909ba6ec846883e6142b909590b6dfdb6f9

commit f6599909ba6ec846883e6142b909590b6dfdb6f9
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2024-04-06 07:55:46 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2024-08-01 20:35:33 +0000

    tcp rack: fix memory corruption
    
    When in rack_output() jumping to the label out, don't write errno into
    the log buffer, since the pointer is not initialized.
    
    Reported by:            Coverity Scan
    CID:                    1523773
    Reviewed by:            rscheff
    Sponsored by:           Netflix, Inc.
    Differential Revision:  https://reviews.freebsd.org/D44647
    
    (cherry picked from commit d902c8f55b8da6902ab45e67ed756cc99f5a9d5a)
---
 sys/netinet/tcp_stacks/rack.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
index 3e3900844989..7429dcac5d5b 100644
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -18324,12 +18324,12 @@ send:
 			mtu = inp->inp_route.ro_nh->nh_mtu;
 	}
 #endif				/* INET */
-
-out:
 	if (lgb) {
 		lgb->tlb_errno = error;
 		lgb = NULL;
 	}
+
+out:
 	/*
 	 * In transmit state, time the transmission and arrange for the
 	 * retransmit.  In persist state, just set snd_max.