On Tue, 01 Sep, at 03:29:44AM, Wang Nan wrote: > There is a problem in dwarf-regs.c of sh, sparc and x86 that it is > possible to make an out-of-bound array accessing when searching > register names. This patch fixes it by replacing '<=' to '<', so when > register (number == XXX_MAX_REGS), get_arch_regstr() returns NULL. > > Signed-off-by: Wang Nan <[email protected]> > Cc: Arnaldo Carvalho de Melo <[email protected]> > Cc: Masami Hiramatsu <[email protected]> > Cc: David S. Miller <[email protected]> > Cc: Matt Fleming <[email protected]> > Cc: Jiri Olsa <[email protected]> > --- > tools/perf/arch/sh/util/dwarf-regs.c | 2 +- > tools/perf/arch/sparc/util/dwarf-regs.c | 2 +- > tools/perf/arch/x86/util/dwarf-regs.c | 2 +- > 3 files changed, 3 insertions(+), 3 deletions(-)
Hmm, I wonder how that bug was introduced. I guess copy and paste is probably to blame. Good catch. Reviewed-by: Matt Fleming <[email protected]> -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
