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[ Upstream commit748b2f5e82] mac_len is of type unsigned, which can never be less than zero. mac_len = ieee802154_hdr_peek_addrs(skb, &header); if (mac_len < 0) return mac_len; Change this to type int as ieee802154_hdr_peek_addrs() can return negative integers, this is found by static analysis with smatch. Fixes:6c993779ea("ca8210: fix mac_len negative array access") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Acked-by: Alexander Aring <aahringo@redhat.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/20230306191824.4115839-1-harshit.m.mogalapalli@oracle.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.