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stress2: Added two syzkaller reproducers

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This commit is contained in:
Peter Holm 2023-03-18 10:31:31 +01:00
parent ac6bc808f5
commit bce30c896d
3 changed files with 411 additions and 0 deletions
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1
tools/test/stress2/misc/all.exclude
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@ -66,6 +66,7 @@ syzkaller50.sh panic: Assertion done != job_total_nbytes failed at ... 2022040
syzkaller54.sh panic: td 0xfffffe014f7193a0 is not suspended 20220527
syzkaller55.sh panic: Counter goes negative 20220525
syzkaller59.sh Page fault 20220625
syzkaller65.sh Waiting for fix 20230318
truss3.sh WiP 20200915
unionfs9.sh https://people.freebsd.org/~pho/stress/log/log0404.txt 20230110

328
tools/test/stress2/misc/syzkaller64.sh Executable file
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@ -0,0 +1,328 @@
#!/bin/sh
[ `uname -p` != "amd64" ] && exit 0
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
[ "`sysctl -in kern.features.kasan`" != "1" ] && exit 0
. ../default.cfg
prog=$(basename "$0" .sh)
cat > /tmp/$prog.c <<EOF
// https://syzkaller.appspot.com/bug?id=749aa1fdb67018e9c0179373a60d523511bff02c
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+5cb51285603332d9be11@syzkaller.appspotmail.com
#define _GNU_SOURCE
#include <sys/types.h>
#include <errno.h>
#include <pthread.h>
#include <pwd.h>
#include <setjmp.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/resource.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* ctx __unused)
{
if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
exit(sig);
}
uintptr_t addr = (uintptr_t)info->si_addr;
const uintptr_t prog_start = 1 << 20;
const uintptr_t prog_end = 100 << 20;
int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
int valid = addr < prog_start || addr > prog_end;
if (sig == SIGBUS)
valid = 1;
if (skip && valid) {
_longjmp(segv_env, 1);
}
exit(sig);
}
static void install_segv_handler(void)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = segv_handler;
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGBUS, &sa, NULL);
}
#define NONFAILING(...) \
({ \
int ok = 1; \
__atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \
if (_setjmp(segv_env) == 0) { \
__VA_ARGS__; \
} else \
ok = 0; \
__atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \
ok; \
})
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 thread_start(void* (*fn)(void*), void* arg)
{
pthread_t th;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 128 << 10);
int i = 0;
for (; i < 100; i++) {
if (pthread_create(&th, &attr, fn, arg) == 0) {
pthread_attr_destroy(&attr);
return;
}
if (errno == EAGAIN) {
usleep(50);
continue;
}
break;
}
exit(1);
}
typedef struct {
pthread_mutex_t mu;
pthread_cond_t cv;
int state;
} event_t;
static void event_init(event_t* ev)
{
if (pthread_mutex_init(&ev->mu, 0))
exit(1);
if (pthread_cond_init(&ev->cv, 0))
exit(1);
ev->state = 0;
}
static void event_reset(event_t* ev)
{
ev->state = 0;
}
static void event_set(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
if (ev->state)
exit(1);
ev->state = 1;
pthread_mutex_unlock(&ev->mu);
pthread_cond_broadcast(&ev->cv);
}
static void event_wait(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
while (!ev->state)
pthread_cond_wait(&ev->cv, &ev->mu);
pthread_mutex_unlock(&ev->mu);
}
static int event_isset(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
int res = ev->state;
pthread_mutex_unlock(&ev->mu);
return res;
}
static int event_timedwait(event_t* ev, uint64_t timeout)
{
uint64_t start = current_time_ms();
uint64_t now = start;
pthread_mutex_lock(&ev->mu);
for (;;) {
if (ev->state)
break;
uint64_t remain = timeout - (now - start);
struct timespec ts;
ts.tv_sec = remain / 1000;
ts.tv_nsec = (remain % 1000) * 1000 * 1000;
pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
now = current_time_ms();
if (now - start > timeout)
break;
}
int res = ev->state;
pthread_mutex_unlock(&ev->mu);
return res;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 128 << 20;
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
struct thread_t {
int created, call;
event_t ready, done;
};
static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static void* thr(void* arg)
{
struct thread_t* th = (struct thread_t*)arg;
for (;;) {
event_wait(&th->ready);
event_reset(&th->ready);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
event_set(&th->done);
}
return 0;
}
static void execute_one(void)
{
int i, call, thread;
for (call = 0; call < 5; call++) {
for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
thread++) {
struct thread_t* th = &threads[thread];
if (!th->created) {
th->created = 1;
event_init(&th->ready);
event_init(&th->done);
event_set(&th->done);
thread_start(thr, th);
}
if (!event_isset(&th->done))
continue;
event_reset(&th->done);
th->call = call;
__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
event_set(&th->ready);
event_timedwait(&th->done, 50);
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
}
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_call(int call)
{
switch (call) {
case 0:
syscall(SYS_thr_new, 0ul, 0ul);
break;
case 1:
syscall(SYS_setloginclass, 0ul);
break;
case 2:
syscall(SYS_vfork);
break;
case 3:
NONFAILING(*(uint32_t*)0x20001880 = 4);
syscall(SYS_sysarch, 8ul, 0x20001880ul);
break;
case 4:
syscall(SYS_getsid, 0);
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
install_segv_handler();
do_sandbox_none();
return 0;
}
EOF
mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c -lpthread || exit 1
(cd /tmp; timeout 2m ./$prog)
rm -rf /tmp/$prog /tmp/$prog.c /tmp/syzkaller.*
exit 0

82
tools/test/stress2/misc/syzkaller65.sh Executable file
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@ -0,0 +1,82 @@
#!/bin/sh
# panic: in_pcblookup_hash_locked: invalid local address
# cpuid = 11
# time = 1678303805
# KDB: stack backtrace:
# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0657e466d0
# vpanic() at vpanic+0x152/frame 0xfffffe0657e46720
# panic() at panic+0x43/frame 0xfffffe0657e46780
# in_pcblookup_hash_locked() at in_pcblookup_hash_locked+0x4e2/frame 0xfffffe0657e467f0
# in_pcb_lport_dest() at in_pcb_lport_dest+0x28a/frame 0xfffffe0657e468a0
# in_pcbconnect_setup() at in_pcbconnect_setup+0x31b/frame 0xfffffe0657e46940
# udp_send() at udp_send+0x68b/frame 0xfffffe0657e46a50
# udp6_send() at udp6_send+0x287/frame 0xfffffe0657e46c10
# sosend_dgram() at sosend_dgram+0x327/frame 0xfffffe0657e46c70
# sousrsend() at sousrsend+0x7e/frame 0xfffffe0657e46cd0
# kern_sendit() at kern_sendit+0x1bc/frame 0xfffffe0657e46d60
# sendit() at sendit+0xba/frame 0xfffffe0657e46db0
# sys_sendto() at sys_sendto+0x4d/frame 0xfffffe0657e46e00
# amd64_syscall() at amd64_syscall+0x15a/frame 0xfffffe0657e46f30
# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0657e46f30
# --- syscall (0, FreeBSD ELF64, syscall), rip = 0x822a3a31a, rsp = 0x8208224d8, rbp = 0x820822500 ---
# KDB: enter: panic
# [ thread pid 47141 tid 357973 ]
# Stopped at kdb_enter+0x32: movq $0,0x12906d3(%rip)
# db> x/s version
# FreeBSD 14.0-CURRENT #0 main-n261389-109abf744bf76: Wed Mar 8 06:10:24 CET 2023
# pho@mercat1.netperf.freebsd.org:/usr/src/sys/a
# db>
[ `uname -p` != "amd64" ] && exit 0
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
prog=$(basename "$0" .sh)
cat > /tmp/$prog.c <<EOF
// https://syzkaller.appspot.com/bug?id=7cae38958ddfe2c338548b4217587bd6d89b43e2
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+c8e3dac881bba85bc029@syzkaller.appspotmail.com
#define _GNU_SOURCE
#include <pwd.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 <unistd.h>
uint64_t r[1] = {0xffffffffffffffff};
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
intptr_t res = 0;
res = syscall(SYS_socket, 0x1cul, 2ul, 0);
if (res != -1)
r[0] = res;
*(uint32_t*)0x200001c0 = 0;
syscall(SYS_setsockopt, r[0], 0x29, 0x1b, 0x200001c0ul, 4ul);
*(uint8_t*)0x20000000 = 0x1c;
*(uint8_t*)0x20000001 = 0x1c;
*(uint16_t*)0x20000002 = htobe16(0x4e22);
*(uint32_t*)0x20000004 = 0;
memset((void*)0x20000008, 0, 10);
memset((void*)0x20000012, 255, 2);
*(uint32_t*)0x20000014 = htobe32(0);
*(uint32_t*)0x20000018 = 0;
syscall(SYS_sendto, r[0], 0ul, 0ul, 0ul, 0x20000000ul, 0x1cul);
return 0;
}
EOF
mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c -lpthread || exit 1
(cd /tmp; timeout 2m ./$prog)
rm -rf /tmp/$prog /tmp/$prog.c /tmp/syzkaller.*
exit 0