• Will Deacon's avatar
    arm64: ptrace: fix compat hardware watchpoint reporting · 27d7ff27
    Will Deacon authored
    I'm not sure what I was on when I wrote this, but when iterating over
    the hardware watchpoint array (hbp_watch_array), our index is off by
    ARM_MAX_BRP, so we walk off the end of our thread_struct...
    
    ... except, a dodgy condition in the loop means that it never executes
    at all (bp cannot be NULL).
    
    This patch fixes the code so that we remove the bp check and use the
    correct index for accessing the watchpoint structures.
    
    Cc: <stable@vger.kernel.org>
    Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
    27d7ff27
ptrace.c 25.3 KB