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selinux: import NetLabel category bitmaps correctly 

The existing ebitmap_netlbl_import() code didn't correctly handle the
case where the ebitmap_node was not aligned/sized to a power of two,
this patch fixes this (on x86_64 ebitmap_node contains six bitmaps
making a range of 0..383).

Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Paul Moore 2016-06-09 10:40:37 -04:00
parent 02f0691815
commit 8bebe88c09
1 changed files with 1 additions and 1 deletions
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2
security/selinux/ss/ebitmap.c
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@ -165,7 +165,7 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap,
e_iter = kzalloc(sizeof(*e_iter), GFP_ATOMIC);
if (e_iter == NULL)
goto netlbl_import_failure;
e_iter->startbit = offset & ~(EBITMAP_SIZE - 1);
e_iter->startbit = offset - (offset % EBITMAP_SIZE);
if (e_prev == NULL)
ebmap->node = e_iter;
else