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UBI: Validate data_size
authorRichard Weinberger <richard@nod.at>
Tue, 22 Sep 2015 21:58:07 +0000 (23:58 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 22 Oct 2015 21:43:24 +0000 (14:43 -0700)
commit189c815c3535412f80f3cc628149aa8dda50b3d2
tree95b4c282dc0af75c95c766f6202d793ab1981aactree
parent207663ca0d556e09d14c743cdf507e50b12e76fecommit | diff
UBI: Validate data_size

commit 281fda27673f833a01d516658a64d22a32c8e072 upstream.

Make sure that data_size is less than LEB size.
Otherwise a handcrafted UBI image is able to trigger
an out of bounds memory access in ubi_compare_lebs().

Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: David Gstir <david@sigma-star.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mtd/ubi/io.c diff | blob | history
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