Description of problem: Discovered by Ben Hawkes, this patch adds a limit for nframes as the number of frames in TXSETUP and RXSETUP are derived from a single byte multiplex value by default. Use-cases that would require to send/filter more than 256 CAN frames should be implemented in userspace for complexity reasons anyway. Additionally the assignments of unsigned values from userspace to signed values in kernelspace and vice versa are fixed by using unsigned values in kernelspace consistently.

Upstream commit: http://git.kernel.org/linus/5b75c4973ce779520b9d1e392483207d6f842cde

Sauli Pahlman of CERT-FI provided us with fuzzed PDF file which causes xpdf / poppler PDF parser to crash.

The crash is caused by an attempt to dereference uninitialized Gfx::parser pointer in Gfx::getPos(), which assumes parser is either NULL or valid Parser pointer.

http://cgit.freedesktop.org/poppler/poppler/tree/poppler/Gfx.cc?id=71063d51#n879

Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an HTML document with improperly nested tags.