git: 64443828bbe7 - main - tcp: fix list iteration in tcp_lro_flush_active()

The branch main has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=64443828bbe7c571db8d8731758ec8c4b8364c86

commit 64443828bbe7c571db8d8731758ec8c4b8364c86
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2024-08-20 22:07:37 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2024-08-20 22:07:37 +0000

    tcp: fix list iteration in tcp_lro_flush_active()
    
    Use LIST_FOREACH_SAFE(), since the list element is removed from
    the list in the loop body, zero out and inserted in the free list.
    
    Reviewed by:            rrs
    MFC after:              1 week
    Sponsored by:           Netflix, Inc.
    Differential Revision:  https://reviews.freebsd.org/D46383
---
 sys/netinet/tcp_lro.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/netinet/tcp_lro.c b/sys/netinet/tcp_lro.c
index 2603815f9e61..906e01257a04 100644
--- a/sys/netinet/tcp_lro.c
+++ b/sys/netinet/tcp_lro.c
@@ -595,7 +595,7 @@ tcp_lro_rx_done(struct lro_ctrl *lc)
 static void
 tcp_lro_flush_active(struct lro_ctrl *lc)
 {
-	struct lro_entry *le;
+	struct lro_entry *le, *le_tmp;
 
 	/*
 	 * Walk through the list of le entries, and
@@ -607,7 +607,7 @@ tcp_lro_flush_active(struct lro_ctrl *lc)
 	 * is being freed. This is ok it will just get
 	 * reallocated again like it was new.
 	 */
-	LIST_FOREACH(le, &lc->lro_active, next) {
+	LIST_FOREACH_SAFE(le, &lc->lro_active, next, le_tmp) {
 		if (le->m_head != NULL) {
 			tcp_lro_active_remove(le);
 			tcp_lro_flush(lc, le);