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-rw-r--r--src/vnet/tcp/tcp_bt.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_bt.c b/src/vnet/tcp/tcp_bt.c
index 6f9ee0168f7..eaec147b836 100644
--- a/src/vnet/tcp/tcp_bt.c
+++ b/src/vnet/tcp/tcp_bt.c
@@ -366,13 +366,17 @@ tcp_bt_track_rxt (tcp_connection_t * tc, u32 start, u32 end)
/* Head overlap */
if (bts->min_seq == start)
{
+ /* bts can be freed by bt_fix_overlapped() below */
+ tcp_bts_flags_t bts_flags = bts->flags;
+
prev_index = bts->prev;
next = bt_fix_overlapped (bt, bts, end, is_end);
+ /* bts is no longer valid from here */
next_index = bt_sample_index (bt, next);
cur = tcp_bt_alloc_tx_sample (tc, start, end);
cur->flags |= TCP_BTS_IS_RXT;
- if (bts->flags & TCP_BTS_IS_RXT)
+ if (bts_flags & TCP_BTS_IS_RXT)
cur->flags |= TCP_BTS_IS_RXT_LOST;
cur->next = next_index;
cur->prev = prev_index;