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| author | Mathias Krause <minipli@googlemail.com> | 2013-06-26 23:52:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-26 15:15:54 -0700 |
| commit | a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887 (patch) | |
| tree | a126282a827b2ff1b25c3213a4a38aecc08d84fd /net/key | |
| parent | a963a37d384d71ad43b3e9e79d68d42fbe0901f3 (diff) | |
| download | linux-stable-a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887.tar.gz linux-stable-a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887.tar.bz2 linux-stable-a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887.zip | |
af_key: fix info leaks in notify messages
key_notify_sa_flush() and key_notify_policy_flush() miss to initialize
the sadb_msg_reserved member of the broadcasted message and thereby
leak 2 bytes of heap memory to listeners. Fix that.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/key')
| -rw-r--r-- | net/key/af_key.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index c5fbd7589681..9da862070dd8 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -1710,6 +1710,7 @@ static int key_notify_sa_flush(const struct km_event *c) hdr->sadb_msg_version = PF_KEY_V2; hdr->sadb_msg_errno = (uint8_t) 0; hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t)); + hdr->sadb_msg_reserved = 0; pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net); @@ -2699,6 +2700,7 @@ static int key_notify_policy_flush(const struct km_event *c) hdr->sadb_msg_errno = (uint8_t) 0; hdr->sadb_msg_satype = SADB_SATYPE_UNSPEC; hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t)); + hdr->sadb_msg_reserved = 0; pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net); return 0; |