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netrom: Fix nr_getname() leak

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nr_getname() can leak kernel memory to user.

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2009-08-06 03:31:07 +00:00 • committed by David S. Miller
commit f6b97b2951
1 changed files with 1 additions and 0 deletions
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1
net/netrom/af_netrom.c
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@ -847,6 +847,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
sax->fsa_ax25.sax25_family = AF_NETROM;
sax->fsa_ax25.sax25_ndigis = 1;
sax->fsa_ax25.sax25_call = nr->user_addr;
memset(sax->fsa_digipeater, 0, sizeof(sax->fsa_digipeater));
sax->fsa_digipeater[0] = nr->dest_addr;
*uaddr_len = sizeof(struct full_sockaddr_ax25);
} else {