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drivers/net/eql.c: prevent reading uninitialized stack memory
authorDan Rosenberg <drosenberg@vsecurity.com>
Wed, 15 Sep 2010 11:43:04 +0000 (11:43 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 27 Sep 2010 00:18:17 +0000 (17:18 -0700)
commit073b0b42c9a06e8c3d2e81fac440e3f387c0498a
tree414551557824709ebfd9240acc4044fbac5f8925
parent79872c1916caaebb002448f63455050cfde581cf
drivers/net/eql.c: prevent reading uninitialized stack memory

commit 44467187dc22fdd33a1a06ea0ba86ce20be3fe3c upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/net/eql.c