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Plug routing sysctl leaks.

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Various structures exported by sysctl_rtsock() contain padding fields
which were not being zeroed.

Reported by:	Thomas Barabosch, Fraunhofer FKIE
Reviewed by:	ae
MFC after:	3 days
Security:	kernel memory disclosure
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18333
This commit is contained in:
markj 2018-11-26 13:42:18 +00:00 committed by Sebastian Huber
parent a091d5da63
commit 44756a36ab
1 changed files with 5 additions and 1 deletions
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6
newlib/libc/sys/rtems/include/net/if.h
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@ -29,7 +29,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* @(#)if.h 8.1 (Berkeley) 6/10/93 * @(#)if.h 8.1 (Berkeley) 6/10/93
* $FreeBSD: head/sys/net/if.h 333502 2018-05-11 20:08:28Z mmacy $ * $FreeBSD: head/sys/net/if.h 340968 2018-11-26 13:42:18Z markj $
*/ */
#ifndef _NET_IF_H_ #ifndef _NET_IF_H_
@ -271,6 +271,7 @@ struct if_msghdr {
int ifm_addrs; /* like rtm_addrs */ int ifm_addrs; /* like rtm_addrs */
int ifm_flags; /* value of if_flags */ int ifm_flags; /* value of if_flags */
u_short ifm_index; /* index for associated ifp */ u_short ifm_index; /* index for associated ifp */
u_short _ifm_spare1;
struct if_data ifm_data;/* statistics and other data about if */ struct if_data ifm_data;/* statistics and other data about if */
}; };
@ -296,6 +297,7 @@ struct if_msghdrl {
u_short _ifm_spare1; /* spare space to grow if_index, see if_var.h */ u_short _ifm_spare1; /* spare space to grow if_index, see if_var.h */
u_short ifm_len; /* length of if_msghdrl incl. if_data */ u_short ifm_len; /* length of if_msghdrl incl. if_data */
u_short ifm_data_off; /* offset of if_data from beginning */ u_short ifm_data_off; /* offset of if_data from beginning */
int _ifm_spare2;
struct if_data ifm_data;/* statistics and other data about if */ struct if_data ifm_data;/* statistics and other data about if */
}; };
@ -311,6 +313,7 @@ struct ifa_msghdr {
int ifam_addrs; /* like rtm_addrs */ int ifam_addrs; /* like rtm_addrs */
int ifam_flags; /* value of ifa_flags */ int ifam_flags; /* value of ifa_flags */
u_short ifam_index; /* index for associated ifp */ u_short ifam_index; /* index for associated ifp */
u_short _ifam_spare1;
int ifam_metric; /* value of ifa_ifp->if_metric */ int ifam_metric; /* value of ifa_ifp->if_metric */
}; };
@ -352,6 +355,7 @@ struct ifma_msghdr {
int ifmam_addrs; /* like rtm_addrs */ int ifmam_addrs; /* like rtm_addrs */
int ifmam_flags; /* value of ifa_flags */ int ifmam_flags; /* value of ifa_flags */
u_short ifmam_index; /* index for associated ifp */ u_short ifmam_index; /* index for associated ifp */
u_short _ifmam_spare1;
}; };
/* /*