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apparmor: do not expose kernel stack

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Do not copy uninitalized fields th.td_hilen, th.td_data.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2016-06-10 23:34:26 +02:00 committed by John Johansen
parent 58acf9d911
commit f4ee2def2d
1 changed files with 3 additions and 1 deletions
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security/apparmor/match.c
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@ -63,7 +63,9 @@ static struct table_header *unpack_table(char *blob, size_t bsize)
table = kvzalloc(tsize);
if (table) {
*table = th;
table->td_id = th.td_id;
table->td_flags = th.td_flags;
table->td_lolen = th.td_lolen;
if (th.td_flags == YYTD_DATA8)
UNPACK_ARRAY(table->td_data, blob, th.td_lolen,
u8, byte_to_byte);