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Sanatize result from bfd_find_nearest_line (BETTER_BACKTRACES)

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bfd_find_nearest_line can possibly set file to null resulting in a crash when strrchr(file) runs

(closes issue ASTERISK-19815)
Reported by Mark Murawski
Tested by Mark Murawski




git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@364635 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Murawki
2012-04-30 15:51:12 +00:00
parent f248f6eb71
commit 2a6bdce6b4
1 changed files with 3 additions and 0 deletions
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3
main/logger.c
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@@ -1383,6 +1383,9 @@ char **ast_bt_get_symbols(void **addresses, size_t num_frames)
continue; continue;
} }
/* file can possibly be null even with a success result from bfd_find_nearest_line */
file = file ? file : "";
/* Stack trace output */ /* Stack trace output */
found++; found++;
if ((lastslash = strrchr(file, '/'))) { if ((lastslash = strrchr(file, '/'))) {