1*4882a593Smuzhiyun #define _GNU_SOURCE 2*4882a593Smuzhiyun #include <assert.h> 3*4882a593Smuzhiyun #include <errno.h> 4*4882a593Smuzhiyun #include <fcntl.h> 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <sched.h> 7*4882a593Smuzhiyun #include <signal.h> 8*4882a593Smuzhiyun #include <stdio.h> 9*4882a593Smuzhiyun #include <stdlib.h> 10*4882a593Smuzhiyun #include <string.h> 11*4882a593Smuzhiyun #include <syscall.h> 12*4882a593Smuzhiyun #include <sys/wait.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #include "../kselftest_harness.h" 15*4882a593Smuzhiyun #include "../pidfd/pidfd.h" 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* 18*4882a593Smuzhiyun * Regression test for: 19*4882a593Smuzhiyun * 35f71bc0a09a ("fork: report pid reservation failure properly") 20*4882a593Smuzhiyun * b26ebfe12f34 ("pid: Fix error return value in some cases") 21*4882a593Smuzhiyun */ TEST(regression_enomem)22*4882a593SmuzhiyunTEST(regression_enomem) 23*4882a593Smuzhiyun { 24*4882a593Smuzhiyun pid_t pid; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun if (geteuid()) 27*4882a593Smuzhiyun EXPECT_EQ(0, unshare(CLONE_NEWUSER)); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun EXPECT_EQ(0, unshare(CLONE_NEWPID)); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun pid = fork(); 32*4882a593Smuzhiyun ASSERT_GE(pid, 0); 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun if (pid == 0) 35*4882a593Smuzhiyun exit(EXIT_SUCCESS); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun EXPECT_EQ(0, wait_for_pid(pid)); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun pid = fork(); 40*4882a593Smuzhiyun ASSERT_LT(pid, 0); 41*4882a593Smuzhiyun ASSERT_EQ(errno, ENOMEM); 42*4882a593Smuzhiyun } 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun TEST_HARNESS_MAIN 45