[BlueZ v2 11/20] isotest: Consider "0" fd to be valid

Bastien Nocera
2024-05-10T12:14:13Z

Error: RESOURCE_LEAK (CWE-772): [#def79] [important]
bluez-5.75/tools/isotest.c:923:4: open_fn: Returning handle opened by "open_file".
bluez-5.75/tools/isotest.c:923:4: var_assign: Assigning: "fd" = handle returned from "open_file(altername)".
bluez-5.75/tools/isotest.c:925:3: off_by_one: Testing whether handle "fd" is strictly greater than zero is suspicious. "fd" leaks when it is zero.
bluez-5.75/tools/isotest.c:925:3: remediation: Did you intend to include equality with zero?
bluez-5.75/tools/isotest.c:926:4: overwrite_var: Overwriting handle "fd" in "fd = open_file(filename)" leaks the handle.
924|
925| if (fd <= 0)
926|-> fd = open_file(filename);
927| }
928|
---
tools/isotest.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/isotest.c b/tools/isotest.c
index 7e875fa58b15..810d15d2df2a 100644
--- a/tools/isotest.c
+++ b/tools/isotest.c
@@ -922,7 +922,7 @@ static void send_mode(char *filename, char *peer, int i, bool repeat)
if (!err)
fd = open_file(altername);

- if (fd <= 0)
+ if (fd < 0)
fd = open_file(filename);
}

--
2.44.0