Commit 66e2f5f7 authored by Maciej Żenczykowski's avatar Maciej Żenczykowski Committed by David S. Miller

net: inet_is_local_reserved_port() port arg should be unsigned short

Any argument outside of that range would result in an out of bound
memory access, since the accessed array is 65536 bits long.
Signed-off-by: default avatarMaciej Żenczykowski <maze@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4e81c0b3
...@@ -339,7 +339,7 @@ static inline u64 snmp_fold_field64(void __percpu *mib, int offt, size_t syncp_o ...@@ -339,7 +339,7 @@ static inline u64 snmp_fold_field64(void __percpu *mib, int offt, size_t syncp_o
void inet_get_local_port_range(struct net *net, int *low, int *high); void inet_get_local_port_range(struct net *net, int *low, int *high);
#ifdef CONFIG_SYSCTL #ifdef CONFIG_SYSCTL
static inline bool inet_is_local_reserved_port(struct net *net, int port) static inline bool inet_is_local_reserved_port(struct net *net, unsigned short port)
{ {
if (!net->ipv4.sysctl_local_reserved_ports) if (!net->ipv4.sysctl_local_reserved_ports)
return false; return false;
...@@ -357,7 +357,7 @@ static inline bool inet_port_requires_bind_service(struct net *net, unsigned sho ...@@ -357,7 +357,7 @@ static inline bool inet_port_requires_bind_service(struct net *net, unsigned sho
} }
#else #else
static inline bool inet_is_local_reserved_port(struct net *net, int port) static inline bool inet_is_local_reserved_port(struct net *net, unsigned short port)
{ {
return false; return false;
} }
......
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