1 files changed, 156 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/syzkaller66.sh b/tools/test/stress2/misc/syzkaller66.sh
new file mode 100755
index 000000000000..8d1e9afe6f6c
--- /dev/null
+++ b/tools/test/stress2/misc/syzkaller66.sh
@@ -0,0 +1,156 @@
+#!/bin/sh
+
+# panic: in_pcbconnect: inp is already connected
+# cpuid = 2
+# time = 1687326262
+# KDB: stack backtrace:
+# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe016e604b60
+# vpanic() at vpanic+0x150/frame 0xfffffe016e604bb0
+# panic() at panic+0x43/frame 0xfffffe016e604c10
+# in_pcbconnect_setup() at in_pcbconnect_setup/frame 0xfffffe016e604c60
+# tcp_connect() at tcp_connect+0xa3/frame 0xfffffe016e604ca0
+# tcp_usr_connect() at tcp_usr_connect+0xf3/frame 0xfffffe016e604d10
+# soconnectat() at soconnectat+0xaf/frame 0xfffffe016e604d60
+# kern_connectat() at kern_connectat+0xe1/frame 0xfffffe016e604dc0
+# sys_connect() at sys_connect+0x75/frame 0xfffffe016e604e00
+# amd64_syscall() at amd64_syscall+0x157/frame 0xfffffe016e604f30
+# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe016e604f30
+# --- syscall (0, FreeBSD ELF64, syscall), rip = 0x823c81a6a, rsp = 0x8210ed3c8, rbp = 0x8210ed3e0 ---
+# KDB: enter: panic
+# [ thread pid 46907 tid 100356 ]
+# Stopped at      kdb_enter+0x32: movq    $0,0xddf693(%rip)
+# db> x/s version
+# version:        FreeBSD 14.0-CURRENT #0 main-n263725-1efa7dbc0798e: Wed Jun 21 09:13:50 CEST 2023
+# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO-KASAN\012
+# db> 
+
+[ `uname -p` != "amd64" ] && exit 0
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+prog=$(basename "$0" .sh)
+cat > /tmp/$prog.c <<EOF
+// https://syzkaller.appspot.com/bug?id=44e3d85e927362a22cc594b9d1d3072f38da7972
+// autogenerated by syzkaller (https://github.com/google/syzkaller)
+// Reported-by: syzbot+f0f7871ec5397602b446@syzkaller.appspotmail.com
+
+#define _GNU_SOURCE
+
+#include <sys/types.h>
+
+#include <pwd.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/endian.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+static void kill_and_wait(int pid, int* status)
+{
+  kill(pid, SIGKILL);
+  while (waitpid(-1, status, 0) != pid) {
+  }
+}
+
+static void sleep_ms(uint64_t ms)
+{
+  usleep(ms * 1000);
+}
+
+static uint64_t current_time_ms(void)
+{
+  struct timespec ts;
+  if (clock_gettime(CLOCK_MONOTONIC, &ts))
+    exit(1);
+  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
+}
+
+static void execute_one(void);
+
+#define WAIT_FLAGS 0
+
+static void loop(void)
+{
+  int iter __unused = 0;
+  for (;; iter++) {
+    int pid = fork();
+    if (pid < 0)
+      exit(1);
+    if (pid == 0) {
+      execute_one();
+      exit(0);
+    }
+    int status = 0;
+    uint64_t start = current_time_ms();
+    for (;;) {
+      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
+        break;
+      sleep_ms(1);
+      if (current_time_ms() - start < 5000)
+        continue;
+      kill_and_wait(pid, &status);
+      break;
+    }
+  }
+}
+
+uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
+
+void execute_one(void)
+{
+  intptr_t res = 0;
+  res = syscall(SYS_socket, 2ul, 1ul, 0);
+  if (res != -1)
+    r[0] = res;
+  *(uint8_t*)0x200001c0 = 0x10;
+  *(uint8_t*)0x200001c1 = 2;
+  *(uint16_t*)0x200001c2 = htobe16(0x4e22);
+  *(uint32_t*)0x200001c4 = htobe32(0x7f000001);
+  memset((void*)0x200001c8, 0, 8);
+  syscall(SYS_bind, r[0], 0x200001c0ul, 0x10ul);
+  syscall(SYS_listen, r[0], 0);
+  res = syscall(SYS_socket, 2ul, 1ul, 0);
+  if (res != -1)
+    r[1] = res;
+  *(uint8_t*)0x200000c0 = 0x10;
+  *(uint8_t*)0x200000c1 = 2;
+  *(uint16_t*)0x200000c2 = htobe16(0x4e22);
+  *(uint32_t*)0x200000c4 = htobe32(0x7f000001);
+  memset((void*)0x200000c8, 0, 8);
+  syscall(SYS_connect, r[1], 0x200000c0ul, 0x10ul);
+  *(uint64_t*)0x20002580 = 0;
+  *(uint32_t*)0x20002588 = 0;
+  *(uint64_t*)0x20002590 = 0;
+  *(uint64_t*)0x20002598 = 0;
+  *(uint64_t*)0x200025a0 = 0;
+  *(uint64_t*)0x200025a8 = 0;
+  *(uint32_t*)0x200025b0 = 0;
+  syscall(SYS_sendmsg, r[1], 0x20002580ul, 0x20104ul);
+  syscall(SYS_shutdown, r[1], 1ul);
+  *(uint8_t*)0x200000c0 = 0x10;
+  *(uint8_t*)0x200000c1 = 2;
+  *(uint16_t*)0x200000c2 = htobe16(0x4e22);
+  *(uint32_t*)0x200000c4 = htobe32(0x7f000001);
+  memset((void*)0x200000c8, 0, 8);
+  syscall(SYS_connect, r[1], 0x200000c0ul, 0x10ul);
+}
+int main(void)
+{
+  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
+  loop();
+  return 0;
+}
+EOF
+mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c || exit 1
+
+(cd /tmp; timeout 2m ./$prog)
+
+rm -rf /tmp/$prog /tmp/$prog.c /tmp/syzkaller.*
+exit 0