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-rwxr-xr-xtools/test/stress2/misc/ftruncate2.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/test/stress2/misc/ftruncate2.sh b/tools/test/stress2/misc/ftruncate2.sh
index 35db3a4c5f8d..94d9b6ca810f 100755
--- a/tools/test/stress2/misc/ftruncate2.sh
+++ b/tools/test/stress2/misc/ftruncate2.sh
@@ -185,7 +185,7 @@ main(int argc, char **argv)
if ((pw = getpwnam("nobody")) == NULL)
err(1, "failed to resolve nobody");
- if (setgroups(1, &pw->pw_gid) ||
+ if (setgroups(0, NULL) ||
setegid(pw->pw_gid) || setgid(pw->pw_gid) ||
seteuid(pw->pw_uid) || setuid(pw->pw_uid))
err(1, "Can't drop privileges to \"nobody\"");