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* [PATCH] crypto/chtls: Fix double free in chtls_pass_accept_request()
@ 2020-08-24  8:59 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2020-08-24  8:59 UTC (permalink / raw)
  To: Ayush Sawal
  Cc: Vinay Kumar Yadav, Rohit Maheshwari, Herbert Xu, David S. Miller,
	Florian Westphal, Eric Dumazet, Shahjada Abul Husain,
	linux-crypto, kernel-janitors

The chtls_recv_sock() function frees "oreq" so the free here is a double
free.

Fixes: 6abde0b24122 ("crypto/chtls: IPv6 support for inline TLS")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/crypto/chelsio/chtls/chtls_cm.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/crypto/chelsio/chtls/chtls_cm.c b/drivers/crypto/chelsio/chtls/chtls_cm.c
index 05520dccd906..140342024bd1 100644
--- a/drivers/crypto/chelsio/chtls/chtls_cm.c
+++ b/drivers/crypto/chelsio/chtls/chtls_cm.c
@@ -1381,7 +1381,7 @@ static void chtls_pass_accept_request(struct sock *sk,
 
 	newsk = chtls_recv_sock(sk, oreq, network_hdr, req, cdev);
 	if (!newsk)
-		goto free_oreq;
+		goto reject;
 
 	if (chtls_get_module(newsk))
 		goto reject;
@@ -1397,8 +1397,6 @@ static void chtls_pass_accept_request(struct sock *sk,
 	kfree_skb(skb);
 	return;
 
-free_oreq:
-	chtls_reqsk_free(oreq);
 reject:
 	mk_tid_release(reply_skb, 0, tid);
 	cxgb4_ofld_send(cdev->lldi->ports[0], reply_skb);
-- 
2.28.0

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2020-08-24  8:59 [PATCH] crypto/chtls: Fix double free in chtls_pass_accept_request() Dan Carpenter

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