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(parent: 3b9cf79) | patch
of: overlay: validate offset from property fixups
authorFrank Rowand <frank.rowand@sony.com>
Thu, 17 May 2018 04:19:51 +0000 (21:19 -0700)
committerRob Herring <robh@kernel.org>
Wed, 23 May 2018 20:07:43 +0000 (15:07 -0500)
commit482137bf2aecd887ebfa8756456764a2f6a0e545
tree93348102e5fd1d4ab474eb4fb66f1631ea17c82ftree | snapshot
parent3b9cf7905fe3ab35ab437b5072c883e609d3498dcommit | diff
of: overlay: validate offset from property fixups

The smatch static checker marks the data in offset as untrusted,
leading it to warn:

  drivers/of/resolver.c:125 update_usages_of_a_phandle_reference()
  error: buffer underflow 'prop->value' 's32min-s32max'

Add check to verify that offset is within the property data.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
drivers/of/resolver.c diff | blob | history
wrapfs-5.3.y