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authorDinghao Liu <dinghao.liu@zju.edu.cn>2020-08-27 18:55:46 +0300
committerDavid S. Miller <davem@davemloft.net>2020-08-27 22:59:45 +0300
commitb43c75abfd084b9e961a47c6331e01f2f91176b6 (patch)
tree25dbeb124e4ddd87f5ae5626d61c817466fdab92 /net
parent8d73a73a7f6312e65f3c93b6cb93df9e1eff2ca1 (diff)
downloadlinux-b43c75abfd084b9e961a47c6331e01f2f91176b6.tar.xz
rxrpc: Fix memory leak in rxkad_verify_response()
Fix a memory leak in rxkad_verify_response() whereby the response buffer doesn't get freed if we fail to allocate a ticket buffer. Fixes: ef68622da9cc ("rxrpc: Handle temporary errors better in rxkad security") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/rxrpc/rxkad.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index 52a24d4ef5d8..e08130e5746b 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -1137,7 +1137,7 @@ static int rxkad_verify_response(struct rxrpc_connection *conn,
ret = -ENOMEM;
ticket = kmalloc(ticket_len, GFP_NOFS);
if (!ticket)
- goto temporary_error;
+ goto temporary_error_free_resp;
eproto = tracepoint_string("rxkad_tkt_short");
abort_code = RXKADPACKETSHORT;
@@ -1230,6 +1230,7 @@ protocol_error:
temporary_error_free_ticket:
kfree(ticket);
+temporary_error_free_resp:
kfree(response);
temporary_error:
/* Ignore the response packet if we got a temporary error such as