When trying to add a rule which contains an anonymous chain to a
non-existent chain, string_misspell_update() is called with a NULL
string because the anonymous chain has no name. Avoid this by making the
function NULL-pointer tolerant.
c330152b7f777 ("src: support for implicit chain bindings")
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
src/misspell.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/misspell.c b/src/misspell.c
index 6536d7557a445..f213a240005e6 100644
--- a/src/misspell.c
+++ b/src/misspell.c
@@ -80,8 +80,8 @@ int string_misspell_update(const char *a, const char *b,
{
unsigned int len_a, len_b, max_len, min_len, distance, threshold;
- len_a = strlen(a);
- len_b = strlen(b);
+ len_a = a ? strlen(a) : 0;
+ len_b = b ? strlen(b) : 0;
max_len = max(len_a, len_b);
min_len = min(len_a, len_b);
--
2.34.1
