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drivers/net/eql.c: prevent reading uninitialized stack memory
Fixed formatting (tabs and line breaks).
The EQL_GETMASTRCFG device ioctl allows unprivileged users to read 16
bytes of uninitialized stack memory, because the "master_name" member of
the master_config_t struct declared on the stack in eql_g_master_cfg()
is not altered or zeroed before being copied back to the user. This
patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@@ -555,6 +555,8 @@ |
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equalizer_t *eql; |
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master_config_t mc; |
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+ memset(&mc, 0, sizeof(master_config_t)); |
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+ |
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if (eql_is_master(dev)) { |
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eql = netdev_priv(dev); |
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mc.max_slaves = eql->max_slaves; |