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ac1a1de315
struct nr_route_struct's mnemonic permits a string of up to 7 bytes to be used. If userland passes a not zero terminated string to the kernel adding a node to the routing table might result in the kernel attempting to read copy a too long string. Mnemonic is part of the NET/ROM routing protocol; NET/ROM routing table updates only broadcast 6 bytes. The 7th byte in the mnemonic array exists only as a \0 termination character for the kernel code's convenience. Fixed by rejecting mnemonic strings that have no terminating \0 in the first 7 characters. Do this test only NETROM_NODE to avoid breaking NETROM_NEIGH where userland might passing an uninitialized mnemonic field. Initial patch by Dan Carpenter <dan.carpenter@oracle.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Walter Harms <wharms@bfs.de> Cc: Thomas Osterried <thomas@osterried.de> Acked-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| af_netrom.c | ||
| Makefile | ||
| nr_dev.c | ||
| nr_in.c | ||
| nr_loopback.c | ||
| nr_out.c | ||
| nr_route.c | ||
| nr_subr.c | ||
| nr_timer.c | ||
| sysctl_net_netrom.c | ||