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-rwxr-xr-xtools/test/stress2/misc/msync.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/test/stress2/misc/msync.sh b/tools/test/stress2/misc/msync.sh
index 326c7e723774..df05875afb45 100755
--- a/tools/test/stress2/misc/msync.sh
+++ b/tools/test/stress2/misc/msync.sh
@@ -166,7 +166,7 @@ main(void)
if ((pw = getpwnam("nobody")) == NULL)
err(1, "no such user: 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\"");