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can: Fix raw_getname() leak

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raw_getname() can leak 10 bytes of kernel memory to user

(two bytes hole between can_family and can_ifindex,
8 bytes at the end of sockaddr_can structure)

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Oliver Hartkopp <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2009-08-06 20:27:04 +00:00 • committed by David S. Miller
commit e84b90ae5e
1 changed files with 1 additions and 0 deletions
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1
net/can/raw.c
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@ -401,6 +401,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr,
if (peer)
return -EOPNOTSUPP;
memset(addr, 0, sizeof(*addr));
addr->can_family = AF_CAN;
addr->can_ifindex = ro->ifindex;