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UBI: Validate data_size
authorRichard Weinberger <richard@nod.at>
Tue, 22 Sep 2015 21:58:07 +0000 (23:58 +0200)
committerRichard Weinberger <richard@nod.at>
Tue, 29 Sep 2015 10:47:04 +0000 (12:47 +0200)
commit281fda27673f833a01d516658a64d22a32c8e072
treeb00db9a22f925bc2156238f0065b0b4525b2ef5etree | snapshot (tar.gz zip)
parentcf6f54e3f133229f02a90c04fe0ff9dd9d3264b4commit | diff
UBI: Validate data_size

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().

Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: David Gstir <david@sigma-star.at>
drivers/mtd/ubi/io.c diff | blob | blame | history