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author | Frank Ch. Eigler <fche@elastic.org> | 2008-08-21 15:51:23 -0400 |
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committer | Frank Ch. Eigler <fche@elastic.org> | 2008-08-21 15:51:23 -0400 |
commit | 8d22c6ad7250192dc526b2d9ca88b69901793e7b (patch) | |
tree | ffc452480dc7f10b8767c948283c411e6f3bf540 | |
parent | 4b0eb1180bdebb0bd386f5f32e7e4c735e39c3bb (diff) | |
download | systemtap-steved-8d22c6ad7250192dc526b2d9ca88b69901793e7b.tar.gz systemtap-steved-8d22c6ad7250192dc526b2d9ca88b69901793e7b.tar.xz systemtap-steved-8d22c6ad7250192dc526b2d9ca88b69901793e7b.zip |
pr4225: check for null incoming vm_path
-rw-r--r-- | tapsets.cxx | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tapsets.cxx b/tapsets.cxx index daf9d17b..409d909a 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -6886,7 +6886,7 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) // 1 - shared libraries' executable segments load from offset 0 - ld.so convention s.op->newline() << "if (vm_pgoff != 0) return 0;"; // 2 - the shared library we're interested in - s.op->newline() << "if (strcmp (vm_path, sups->pathname)) return 0;"; + s.op->newline() << "if (vm_path == NULL || strcmp (vm_path, sups->pathname)) return 0;"; // 3 - probe address within the mapping limits; test should not fail s.op->newline() << "if (vm_end >= sups->address) return 0;"; s.op->newline(0) << "return stap_uprobe_change (tsk, map_p, vm_start, sups);"; |