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| author | Monty <monty@mariadb.org> | 2020-05-15 16:15:49 +0300 |
|---|---|---|
| committer | Monty <monty@mariadb.org> | 2020-05-23 12:29:10 +0300 |
| commit | c4bf4b7aefcd95b898ea9c8714d09fc1045f304c (patch) | |
| tree | f45c4aefb9e22ecadf8e2e8ac19d0673c88a8e69 /sql/signal_handler.cc | |
| parent | dcc0baf5405b220384b9e1e07d8b9e3ff97b60f4 (diff) | |
| download | mariadb-git-c4bf4b7aefcd95b898ea9c8714d09fc1045f304c.tar.gz | |
Fixed access to undefined memory found by valgrind and MSAN
When my_vsnprintf() is patched, the code protected disabled with
'WAITING_FOR_BUGFIX_TO_VSPRINTF' should be enabled again. Also all %b
formats in this patch should be revert to %s again
Diffstat (limited to 'sql/signal_handler.cc')
| -rw-r--r-- | sql/signal_handler.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/signal_handler.cc b/sql/signal_handler.cc index 467985c1270..147b2568981 100644 --- a/sql/signal_handler.cc +++ b/sql/signal_handler.cc @@ -52,8 +52,9 @@ static inline void output_core_info() char buff[PATH_MAX]; ssize_t len; int fd; - if ((len= readlink("/proc/self/cwd", buff, sizeof(buff))) >= 0) + if ((len= readlink("/proc/self/cwd", buff, sizeof(buff)-1)) >= 0) { + buff[len]= 0; my_safe_printf_stderr("Writing a core file...\nWorking directory at %.*s\n", (int) len, buff); } |