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-rw-r--r--sys/dev/if_wg/module/if_wg_session.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/sys/dev/if_wg/module/if_wg_session.c b/sys/dev/if_wg/module/if_wg_session.c
index e63367785ed3..ae9e44cffef5 100644
--- a/sys/dev/if_wg/module/if_wg_session.c
+++ b/sys/dev/if_wg/module/if_wg_session.c
@@ -1904,13 +1904,12 @@ wg_input(struct mbuf *m0, int offset, struct inpcb *inpcb,
m_adj(m0, hlen);
/*
- * Ensure mbuf is contiguous over full length of the packet. This is
- * done so that we can directly read the handshake values in
- * wg_handshake, and so we can decrypt a transport packet by passing a
- * a single buffer to noise_remote_decrypt() in wg_decap.
+ * Ensure mbuf has at least enough contiguous data to peel off our
+ * headers at the beginning.
*/
- if ((m = m_pullup(m0, m0->m_pkthdr.len)) == NULL) {
+ if ((m = m_defrag(m0, M_NOWAIT)) == NULL) {
DPRINTF(sc, "DEFRAG fail\n");
+ m_freem(m0);
return;
}
data = mtod(m, void *);