os_unix: Call srandom() only if os_get_random() succeeds

Don't use uninitialized stack memory if /dev/urandom is not available.

Signed-off-by: Jouni Malinen <j@w1.fi>

diff --git a/src/utils/os_unix.c b/src/utils/os_unix.c
index fc1110b3cc121e79f87dcf91cd3a990e1b924ef0..6f0c1775666ff47c5ffffece08adb44326b11b4e 100644 (file)
--- a/src/utils/os_unix.c
+++ b/src/utils/os_unix.c
@@ -367,8 +367,8 @@ int os_program_init(void)
        capset(&header, &cap);
 #endif /* ANDROID */
 
-       os_get_random((unsigned char *) &seed, sizeof(seed));
-       srandom(seed);
+       if (os_get_random((unsigned char *) &seed, sizeof(seed)) == 0)
+               srandom(seed);
 
        return 0;
 }