50 lines
1.4 KiB
Diff
50 lines
1.4 KiB
Diff
autofs-5.1.0 - fix config entry read buffer not checked
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From: Ian Kent <raven@themaw.net>
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Check the length of config file line read in and report truncation
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if it was too long.
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---
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CHANGELOG | 1 +
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lib/defaults.c | 8 +++++++-
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2 files changed, 8 insertions(+), 1 deletion(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index bc8b9d1..21c3ecd 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -6,6 +6,7 @@
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- fix incorrect round robin host detection.
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- fix race accessing qdn in get_query_dn().
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- fix leak in cache_push_mapent().
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+- fix config entry read buffer not checked.
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04/06/2014 autofs-5.1.0
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=======================
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diff --git a/lib/defaults.c b/lib/defaults.c
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index d29a976..a83dcee 100644
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--- a/lib/defaults.c
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+++ b/lib/defaults.c
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@@ -835,7 +835,7 @@ static int parse_line(char *line, char **sec, char **res, char **value)
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static int read_config(unsigned int to_syslog, FILE *f, const char *name)
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{
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- char buf[MAX_LINE_LEN];
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+ char buf[MAX_LINE_LEN + 2];
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char secbuf[MAX_SECTION_NAME];
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char *new_sec;
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char *res;
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@@ -843,6 +843,12 @@ static int read_config(unsigned int to_syslog, FILE *f, const char *name)
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new_sec = NULL;
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while ((res = fgets(buf, MAX_LINE_LEN, f))) {
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char *sec, *key, *value;
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+
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+ if (strlen(res) > MAX_LINE_LEN) {
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+ message(to_syslog, "%s was truncated, ignored", res);
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+ continue;
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+ }
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+
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sec = key = value = NULL;
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if (!parse_line(res, &sec, &key, &value))
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continue;
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