diff options
| author | Alfonso Sánchez-Beato <alfonso.sanchez-beato@canonical.com> | 2019-06-06 17:36:29 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2019-10-19 15:52:21 +1100 |
| commit | b6b4d28e0c38320ca6753af40845df991118cd11 (patch) | |
| tree | d0ce7ff5457a49e90f2d50f7df463bebfa8b6e80 /pppd/main.c | |
| parent | 0d004db25edd42f6720f48eedc51f68a781278db (diff) | |
| download | ppp-b6b4d28e0c38320ca6753af40845df991118cd11.tar.gz | |
pppd: Check tdb pointer before closing
Check that pointer to the tdb is not NULL before calling tdb_close().
It is possible that the file could not be opened/created due to
permission issues. This change prevents the crash that happens in that
case.
Signed-off-by: Alfonso Sánchez-Beato <alfonso.sanchez-beato@canonical.com>
Diffstat (limited to 'pppd/main.c')
| -rw-r--r-- | pppd/main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/pppd/main.c b/pppd/main.c index 41be532..1b3f1e5 100644 --- a/pppd/main.c +++ b/pppd/main.c @@ -1574,7 +1574,8 @@ safe_fork(int infd, int outfd, int errfd) /* Executing in the child */ sys_close(); #ifdef USE_TDB - tdb_close(pppdb); + if (pppdb != NULL) + tdb_close(pppdb); #endif /* make sure infd, outfd and errfd won't get tromped on below */ |