xref: /freebsd/tools/test/stress2/misc/syzkaller19.sh (revision 7f658f99f7ed5d1d0e0802073bb22eb8a0a784fb)
18a272653SPeter Holm#!/bin/sh
28a272653SPeter Holm
38a272653SPeter Holm# panic: sleeping without a lock
48a272653SPeter Holm# cpuid = 17
58a272653SPeter Holm# time = 1594020733
68a272653SPeter Holm# KDB: stack backtrace:
78a272653SPeter Holm# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe013e99d6d0
88a272653SPeter Holm# vpanic() at vpanic+0x182/frame 0xfffffe013e99d720
98a272653SPeter Holm# panic() at panic+0x43/frame 0xfffffe013e99d780
108a272653SPeter Holm# _sleep() at _sleep+0x466/frame 0xfffffe013e99d820
118a272653SPeter Holm# soclose() at soclose+0x12a/frame 0xfffffe013e99d890
128a272653SPeter Holm# _fdrop() at _fdrop+0x1a/frame 0xfffffe013e99d8b0
138a272653SPeter Holm# closef() at closef+0x1db/frame 0xfffffe013e99d940
148a272653SPeter Holm# fdescfree_fds() at fdescfree_fds+0x3c/frame 0xfffffe013e99d990
158a272653SPeter Holm# fdescfree() at fdescfree+0x36c/frame 0xfffffe013e99da50
168a272653SPeter Holm# exit1() at exit1+0x487/frame 0xfffffe013e99dac0
178a272653SPeter Holm# sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe013e99dad0
188a272653SPeter Holm# amd64_syscall() at amd64_syscall+0x159/frame 0xfffffe013e99dbf0
198a272653SPeter Holm# fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe013e99dbf0
208a272653SPeter Holm# --- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x8004513da, rsp = 0x7fffffffe548, rbp = 0x7fffffffe560 ---
218a272653SPeter Holm# KDB: enter: panic
228a272653SPeter Holm# [ thread pid 86998 tid 100362 ]
238a272653SPeter Holm# Stopped at      kdb_enter+0x37: movq    $0,0x10c3a16(%rip)
248a272653SPeter Holm# db> x/s version
258a272653SPeter Holm# version:FreeBSD 13.0-CURRENT #2 r362887+d0cb7ae7cb9-c248258(mlnx3): Sat
268a272653SPeter Holm# Jul  4 10:28:49 CEST 2020 pho@t2.osted.lan:/var/tmp/deviant2/sys/amd64/compile/PHO
278a272653SPeter Holm# db>
288a272653SPeter Holm
298a272653SPeter Holm[ `uname -p` != "amd64" ] && exit 0
308a272653SPeter Holm
318a272653SPeter Holm. ../default.cfg
328a272653SPeter Holmcat > /tmp/syzkaller19.c <<EOF
338a272653SPeter Holm// https://syzkaller.appspot.com/bug?id=2196001e8447f2133532abeabaea2ebc0351f67b
348a272653SPeter Holm// autogenerated by syzkaller (https://github.com/google/syzkaller)
358a272653SPeter Holm// Reported-by: syzbot+e625d92c1dd74e402c81@syzkaller.appspotmail.com
368a272653SPeter Holm
378a272653SPeter Holm#define _GNU_SOURCE
388a272653SPeter Holm
398a272653SPeter Holm#include <sys/types.h>
408a272653SPeter Holm
418a272653SPeter Holm#include <pwd.h>
428a272653SPeter Holm#include <signal.h>
438a272653SPeter Holm#include <stdarg.h>
448a272653SPeter Holm#include <stdbool.h>
458a272653SPeter Holm#include <stdint.h>
468a272653SPeter Holm#include <stdio.h>
478a272653SPeter Holm#include <stdlib.h>
488a272653SPeter Holm#include <string.h>
498a272653SPeter Holm#include <sys/endian.h>
508a272653SPeter Holm#include <sys/syscall.h>
518a272653SPeter Holm#include <sys/wait.h>
528a272653SPeter Holm#include <time.h>
538a272653SPeter Holm#include <unistd.h>
548a272653SPeter Holm
558a272653SPeter Holmstatic void kill_and_wait(int pid, int* status)
568a272653SPeter Holm{
578a272653SPeter Holm  kill(pid, SIGKILL);
588a272653SPeter Holm  while (waitpid(-1, status, 0) != pid) {
598a272653SPeter Holm  }
608a272653SPeter Holm}
618a272653SPeter Holm
628a272653SPeter Holmstatic void sleep_ms(uint64_t ms)
638a272653SPeter Holm{
648a272653SPeter Holm  usleep(ms * 1000);
658a272653SPeter Holm}
668a272653SPeter Holm
678a272653SPeter Holmstatic uint64_t current_time_ms(void)
688a272653SPeter Holm{
698a272653SPeter Holm  struct timespec ts;
708a272653SPeter Holm  if (clock_gettime(CLOCK_MONOTONIC, &ts))
718a272653SPeter Holm    exit(1);
728a272653SPeter Holm  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
738a272653SPeter Holm}
748a272653SPeter Holm
758a272653SPeter Holmstatic void execute_one(void);
768a272653SPeter Holm
778a272653SPeter Holm#define WAIT_FLAGS 0
788a272653SPeter Holm
798a272653SPeter Holmstatic void loop(void)
808a272653SPeter Holm{
81*7f658f99SPeter Holm  int iter __unused;
828a272653SPeter Holm  for (iter = 0;; iter++) {
838a272653SPeter Holm    int pid = fork();
848a272653SPeter Holm    if (pid < 0)
858a272653SPeter Holm      exit(1);
868a272653SPeter Holm    if (pid == 0) {
878a272653SPeter Holm      execute_one();
888a272653SPeter Holm      exit(0);
898a272653SPeter Holm    }
908a272653SPeter Holm    int status = 0;
918a272653SPeter Holm    uint64_t start = current_time_ms();
928a272653SPeter Holm    for (;;) {
938a272653SPeter Holm      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
948a272653SPeter Holm        break;
958a272653SPeter Holm      sleep_ms(1);
968a272653SPeter Holm      if (current_time_ms() - start < 5 * 1000)
978a272653SPeter Holm        continue;
988a272653SPeter Holm      kill_and_wait(pid, &status);
998a272653SPeter Holm      break;
1008a272653SPeter Holm    }
1018a272653SPeter Holm  }
1028a272653SPeter Holm}
1038a272653SPeter Holm
1048a272653SPeter Holmuint64_t r[1] = {0xffffffffffffffff};
1058a272653SPeter Holm
1068a272653SPeter Holmvoid execute_one(void)
1078a272653SPeter Holm{
1088a272653SPeter Holm  intptr_t res = 0;
1098a272653SPeter Holm  res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
1108a272653SPeter Holm  if (res != -1)
1118a272653SPeter Holm    r[0] = res;
1128a272653SPeter Holm  *(uint8_t*)0x20000000 = 0x1c;
1138a272653SPeter Holm  *(uint8_t*)0x20000001 = 0x1c;
1148a272653SPeter Holm  *(uint16_t*)0x20000002 = htobe16(0x4e22);
1158a272653SPeter Holm  *(uint32_t*)0x20000004 = 0;
1168a272653SPeter Holm  *(uint8_t*)0x20000008 = 0;
1178a272653SPeter Holm  *(uint8_t*)0x20000009 = 0;
1188a272653SPeter Holm  *(uint8_t*)0x2000000a = 0;
1198a272653SPeter Holm  *(uint8_t*)0x2000000b = 0;
1208a272653SPeter Holm  *(uint8_t*)0x2000000c = 0;
1218a272653SPeter Holm  *(uint8_t*)0x2000000d = 0;
1228a272653SPeter Holm  *(uint8_t*)0x2000000e = 0;
1238a272653SPeter Holm  *(uint8_t*)0x2000000f = 0;
1248a272653SPeter Holm  *(uint8_t*)0x20000010 = 0;
1258a272653SPeter Holm  *(uint8_t*)0x20000011 = 0;
1268a272653SPeter Holm  *(uint8_t*)0x20000012 = 0;
1278a272653SPeter Holm  *(uint8_t*)0x20000013 = 0;
1288a272653SPeter Holm  *(uint8_t*)0x20000014 = 0;
1298a272653SPeter Holm  *(uint8_t*)0x20000015 = 0;
1308a272653SPeter Holm  *(uint8_t*)0x20000016 = 0;
1318a272653SPeter Holm  *(uint8_t*)0x20000017 = 0;
1328a272653SPeter Holm  *(uint32_t*)0x20000018 = 0;
1338a272653SPeter Holm  syscall(SYS_bind, r[0], 0x20000000ul, 0x1cul);
1348a272653SPeter Holm  *(uint8_t*)0x20000180 = 0x1c;
1358a272653SPeter Holm  *(uint8_t*)0x20000181 = 0x1c;
1368a272653SPeter Holm  *(uint16_t*)0x20000182 = htobe16(0x4e22);
1378a272653SPeter Holm  *(uint32_t*)0x20000184 = 0;
1388a272653SPeter Holm  *(uint64_t*)0x20000188 = htobe64(0);
1398a272653SPeter Holm  *(uint64_t*)0x20000190 = htobe64(1);
1408a272653SPeter Holm  *(uint32_t*)0x20000198 = 0;
1418a272653SPeter Holm  syscall(SYS_connect, r[0], 0x20000180ul, 0x1cul);
1428a272653SPeter Holm  *(uint64_t*)0x20000080 = 0;
1438a272653SPeter Holm  *(uint32_t*)0x20000088 = 0;
1448a272653SPeter Holm  *(uint64_t*)0x20000090 = 0;
1458a272653SPeter Holm  *(uint64_t*)0x20000098 = 0;
1468a272653SPeter Holm  *(uint64_t*)0x200000a0 = 0;
1478a272653SPeter Holm  *(uint64_t*)0x200000a8 = 0x60;
1488a272653SPeter Holm  *(uint32_t*)0x200000b0 = 0;
1498a272653SPeter Holm  syscall(SYS_sendmsg, r[0], 0x20000080ul, 0x10cul);
1508a272653SPeter Holm  *(uint32_t*)0x200000c0 = 0xbd;
1518a272653SPeter Holm  *(uint32_t*)0x200000c4 = 0;
1528a272653SPeter Holm  syscall(SYS_setsockopt, r[0], 0xffff, 0x80, 0x200000c0ul, 8ul);
1538a272653SPeter Holm}
1548a272653SPeter Holmint main(void)
1558a272653SPeter Holm{
1568a272653SPeter Holm  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
1578a272653SPeter Holm  loop();
1588a272653SPeter Holm  return 0;
1598a272653SPeter Holm}
1608a272653SPeter HolmEOF
1618a272653SPeter Holmmycc -o /tmp/syzkaller19 -Wall -Wextra -O2 /tmp/syzkaller19.c -lpthread ||
1628a272653SPeter Holm    exit 1
1638a272653SPeter Holm
1648a272653SPeter Holm(cd ../testcases/swap; ./swap -t 1m -i 20 -h > /dev/null 2>&1) &
1658a272653SPeter Holm(cd /tmp; ./syzkaller19) &
1668a272653SPeter Holmsleep 60
1672f0baec1SPeter Holmpkill -9 syzkaller19
1682f0baec1SPeter Holmwhile pkill swap; do sleep 1; done
1698a272653SPeter Holmwait
1708a272653SPeter Holm
1718a272653SPeter Holmrm -f /tmp/syzkaller19 /tmp/syzkaller19.c /tmp/syzkaller19.core
1728a272653SPeter Holmexit 0
173