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| author | Elliott Hughes <enh@google.com> | 2015-07-01 15:00:06 -0500 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2015-07-01 15:00:06 -0500 |
| commit | 8a2c0876754baa2085bce94d6778b5d2f4aee937 (patch) | |
| tree | 5efcacf54d2508aa341759844d7940269ce1ed44 /lib | |
| parent | 8c0d2d2bc557ced86650ab48ab92cf58840efce8 (diff) | |
| download | toybox-8a2c0876754baa2085bce94d6778b5d2f4aee937.tar.gz | |
Fix segfault with "mount -o ro,remount".
Or any call to comma_scan where 'opt' appears as the last item in 'optlist'.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/getmountlist.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/getmountlist.c b/lib/getmountlist.c index 30fb9a35..4fec41b7 100644 --- a/lib/getmountlist.c +++ b/lib/getmountlist.c @@ -78,7 +78,7 @@ int comma_scan(char *optlist, char *opt, int clean) no = 2*(*s == 'n' && s[1] == 'o'); if (optlen == len-no && !strncmp(opt, s+no, optlen)) { got = !no; - if (clean) memmove(s, optlist, strlen(optlist)+1); + if (clean && optlist) memmove(s, optlist, strlen(optlist)+1); } } |