Commit 4294a8ee authored by André Goddard Rosa's avatar André Goddard Rosa Committed by Al Viro

mqueue: fix mq_open() file descriptor leak on user-space processes

We leak fd on lookup_one_len() failure
Signed-off-by: default avatarAndré Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 4919c5e4
......@@ -705,7 +705,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
dentry = lookup_one_len(name, ipc_ns->mq_mnt->mnt_root, strlen(name));
if (IS_ERR(dentry)) {
error = PTR_ERR(dentry);
goto out_err;
goto out_putfd;
}
mntget(ipc_ns->mq_mnt);
......@@ -742,7 +742,6 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
mntput(ipc_ns->mq_mnt);
out_putfd:
put_unused_fd(fd);
out_err:
fd = error;
out_upsem:
mutex_unlock(&ipc_ns->mq_mnt->mnt_root->d_inode->i_mutex);
......
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