diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2020-12-03 11:44:31 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-03 21:53:35 +0300 |
| commit | 391119fb5c5c4bdb4d57c7ffeb5e8d18560783d1 (patch) | |
| tree | 532e05f8902c8e045733fb33d8fd7e6ed61f1dbd | |
| parent | 832e09798c261cf58de3a68cfcc6556408c16a5a (diff) | |
| download | linux-391119fb5c5c4bdb4d57c7ffeb5e8d18560783d1.tar.xz | |
chelsio/chtls: fix a double free in chtls_setkey()
The "skb" is freed by the transmit code in cxgb4_ofld_send() and we
shouldn't use it again. But in the current code, if we hit an error
later on in the function then the clean up code will call kfree_skb(skb)
and so it causes a double free.
Set the "skb" to NULL and that makes the kfree_skb() a no-op.
Fixes: d25f2f71f653 ("crypto: chtls - Program the TLS session Key")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X8ilb6PtBRLWiSHp@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c index 62c829023da5..a4fb463af22a 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c @@ -391,6 +391,7 @@ int chtls_setkey(struct chtls_sock *csk, u32 keylen, csk->wr_unacked += DIV_ROUND_UP(len, 16); enqueue_wr(csk, skb); cxgb4_ofld_send(csk->egress_dev, skb); + skb = NULL; chtls_set_scmd(csk); /* Clear quiesce for Rx key */ |