diff options
| -rw-r--r-- | net/netfilter/nf_log.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index 276324abfa60..cdc744aa5889 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -440,6 +440,10 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write, if (write) { struct ctl_table tmp = *table; + /* proc_dostring() can append to existing strings, so we need to + * initialize it as an empty string. + */ + buf[0] = '\0'; tmp.data = buf; r = proc_dostring(&tmp, write, buffer, lenp, ppos); if (r) |