Thu, 14 Mar 2013 07:44:18 -0700
8008560: [parfait] Null pointer deference in hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
Summary: add null pointer check in signal handler
Reviewed-by: kvn
src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp | file | annotate | diff | comparison | revisions |
1.1 --- a/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp Wed Feb 13 10:25:09 2013 +0100 1.2 +++ b/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp Thu Mar 14 07:44:18 2013 -0700 1.3 @@ -516,7 +516,7 @@ 1.4 // here if the underlying file has been truncated. 1.5 // Do not crash the VM in such a case. 1.6 CodeBlob* cb = CodeCache::find_blob_unsafe(pc); 1.7 - nmethod* nm = cb->is_nmethod() ? (nmethod*)cb : NULL; 1.8 + nmethod* nm = (cb != NULL && cb->is_nmethod()) ? (nmethod*)cb : NULL; 1.9 if (nm != NULL && nm->has_unsafe_access()) { 1.10 stub = StubRoutines::handler_for_unsafe_access(); 1.11 }