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stress2: Added a new verified syzkaller reproducer, update the exclude list and remove a few syscalls from the ignore list

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This commit is contained in:
Peter Holm 2021-06-15 07:33:58 +02:00
parent d5c1296234
commit afce583571
3 changed files with 126 additions and 3 deletions
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2
tools/test/stress2/misc/all.exclude
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@ -56,6 +56,7 @@ swapoff5.sh log0005.txt, known issue 20210111
systrace.sh WiP 20200227
systrace2.sh WiP 20200227
syzkaller11.sh WiP 20200721
syzkaller15.sh WiP 20200712
syzkaller19.sh WiP 20200712
syzkaller25.sh WiP 20201116
syzkaller28.sh WiP 20201120
@ -67,6 +68,7 @@ syzkaller33.sh Fatal trap 18: integer divide fault while in kernel mode 2021041
syzkaller39.sh WiP 20210607
syzkaller40.sh WiP 20210607
syzkaller41.sh WiP 20210607
syzkaller42.sh WiP 20210613
truss3.sh WiP 20200915
unionfs.sh insmntque: non-locked vp: xx is not exclusive locked... 20130909
unionfs2.sh insmntque: mp-safe fs and non-locked vp is not ... 20111219

3
tools/test/stress2/misc/syscall4.sh
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@ -141,10 +141,7 @@ static int ignore[] = {
SYS___syscall,
216, /* custom syscall */
SYS_rfork,
SYS_sigsuspend,
SYS_mac_syscall,
SYS_sigtimedwait,
SYS_sigwaitinfo,
};
static int fd[900], fds[2], kq, socketpr[2];

124
tools/test/stress2/misc/syzkaller42.sh Executable file
View File

@ -0,0 +1,124 @@
#!/bin/sh
[ `uname -p` != "amd64" ] && exit 0
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
# panic: Assertion lock == sq->sq_lock failed at ../../../kern/subr_sleepqueue.c:371
# cpuid = 1
# time = 1623487895
# KDB: stack backtrace:
# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe06c14b4700
# vpanic() at vpanic+0x181/frame 0xfffffe06c14b4750
# panic() at panic+0x43/frame 0xfffffe06c14b47b0
# sleepq_add() at sleepq_add+0x3e6/frame 0xfffffe06c14b4800
# _sleep() at _sleep+0x20e/frame 0xfffffe06c14b48b0
# kern_sigtimedwait() at kern_sigtimedwait+0x532/frame 0xfffffe06c14b4a20
# sys_sigwaitinfo() at sys_sigwaitinfo+0x43/frame 0xfffffe06c14b4ac0
# amd64_syscall() at amd64_syscall+0x147/frame 0xfffffe06c14b4bf0
# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe06c14b4bf0
# --- syscall (0, FreeBSD ELF64, nosys), rip = 0x8003af5fa, rsp = 0x7fffffffe5f8, rbp = 0x7fffffffe610 ---
# KDB: enter: panic
# [ thread pid 15370 tid 356127 ]
# Stopped at kdb_enter+0x37: movq $0,0x1285b4e(%rip)
# db> x/s version
# version: FreeBSD 14.0-CURRENT #0 main-n247326-2349cda44fea: Sat Jun 12 03:57:33 CEST 2021
# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO
# db>
. ../default.cfg
cat > /tmp/syzkaller42.c <<EOF
// https://syzkaller.appspot.com/bug?id=b12f0c4dc1e73c25636e4c4d4787209d155cca0a
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+1d89fc2a9ef92ef64fa8@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 = 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;
}
}
}
void execute_one(void)
{
syscall(SYS_rfork, 0x14034ul);
*(uint32_t*)0x20000140 = 0x80000002;
*(uint32_t*)0x20000144 = 0xfffffff7;
*(uint32_t*)0x20000148 = 0x41;
*(uint32_t*)0x2000014c = 3;
syscall(SYS_sigwaitinfo, 0x20000140ul, 0ul);
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
loop();
return 0;
}
EOF
mycc -o /tmp/syzkaller42 -Wall -Wextra -O0 /tmp/syzkaller42.c -lpthread ||
exit 1
(cd /tmp; timeout 3m ./syzkaller42)
rm -rf /tmp/syzkaller42 syzkaller42.c /tmp/syzkaller.*
exit 0