git: 83c701af5340 - main - stress2: Added two syzkaller reproducers
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Date: Wed, 21 Jun 2023 09:10:43 UTC
The branch main has been updated by pho:
URL: https://cgit.FreeBSD.org/src/commit/?id=83c701af5340d2aa0a665498ad5a54f025c74c4c
commit 83c701af5340d2aa0a665498ad5a54f025c74c4c
Author: Peter Holm <pho@FreeBSD.org>
AuthorDate: 2023-06-21 09:10:13 +0000
Commit: Peter Holm <pho@FreeBSD.org>
CommitDate: 2023-06-21 09:10:13 +0000
stress2: Added two syzkaller reproducers
---
tools/test/stress2/misc/all.exclude | 2 +
tools/test/stress2/misc/syzkaller66.sh | 156 +++++++++++++++++++++++++++++++++
tools/test/stress2/misc/syzkaller67.sh | 99 +++++++++++++++++++++
3 files changed, 257 insertions(+)
diff --git a/tools/test/stress2/misc/all.exclude b/tools/test/stress2/misc/all.exclude
index 36ff8790a4c8..2560b22149d5 100644
--- a/tools/test/stress2/misc/all.exclude
+++ b/tools/test/stress2/misc/all.exclude
@@ -69,6 +69,8 @@ syzkaller31.sh panic: Bad tailq NEXT(0xfffffe01a0899430->tqh_last) != NULL 2022
syzkaller55.sh panic: Counter goes negative 20220525
syzkaller59.sh Page fault 20220625
syzkaller65.sh panic: in_pcblookup_hash_locked: invalid local address 20230318
+syzkaller66.sh panic: in_pcbconnect: inp is already connected 20230621
+syzkaller67.sh panic: ASan: Invalid access, 8-byte read at ... 20230621
truss3.sh WiP 20200915
# Test not to run for other reasons:
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
diff --git a/tools/test/stress2/misc/syzkaller67.sh b/tools/test/stress2/misc/syzkaller67.sh
new file mode 100755
index 000000000000..d5dc340442ae
--- /dev/null
+++ b/tools/test/stress2/misc/syzkaller67.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+
+# panic: ASan: Invalid access, 8-byte read at 0xfffffe01fece46f8, StackMiddle(f2)
+# cpuid = 4
+# time = 1687335671
+# KDB: stack backtrace:
+# db_trace_self_wrapper() at db_trace_self_wrapper+0xa5/frame 0xfffffe01fece42f0
+# kdb_backtrace() at kdb_backtrace+0xc7/frame 0xfffffe01fece4450
+# vpanic() at vpanic+0x1d7/frame 0xfffffe01fece4510
+# panic() at panic+0xb5/frame 0xfffffe01fece45e0
+# kasan_report() at kasan_report+0xdc/frame 0xfffffe01fece46b0
+# __cap_rights_is_set() at __cap_rights_is_set+0x186/frame 0xfffffe01fece47d0
+# fget_fcntl() at fget_fcntl+0xd7/frame 0xfffffe01fece48d0
+# kern_fcntl() at kern_fcntl+0x602/frame 0xfffffe01fece4c10
+# kern_fcntl_freebsd() at kern_fcntl_freebsd+0x244/frame 0xfffffe01fece4d30
+# ia32_syscall() at ia32_syscall+0x32a/frame 0xfffffe01fece4f30
+# int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xffffdb38
+# KDB: enter: panic
+# [ thread pid 4224 tid 100231 ]
+# Stopped at kdb_enter+0x34: movq $0,0x1e3f7c1(%rip)
+# db> x/s version
+# version: FreeBSD 14.0-CURRENT #0 main-n263725-1efa7dbc0798e: Wed Jun 21 09:13:50 CEST 2023
+# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO-KASAN
+# db>
+
+uname -p | grep -Eq "amd64|i386" || exit 0
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+prog=$(basename "$0" .sh)
+cat > /tmp/$prog.c <<EOF
+// https://syzkaller.appspot.com/bug?id=81419dc41de046ccb99da6f333074b750ac36680
+// autogenerated by syzkaller (https://github.com/google/syzkaller)
+// Reported-by: syzbot+d35497494d68b4859367@syzkaller.appspotmail.com
+// i386 + ASan
+
+#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[5] = {0x0, 0x0, 0x0, 0x0, 0x0};
+
+int main(void)
+{
+ syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0);
+ intptr_t res = 0;
+ syscall(SYS_munmap, 0x10ffa000, 0x3000);
+ syscall(SYS_mmap, 0x10ffd000, 0x1000, 4, 0x1010, -1, 0);
+ syscall(SYS_mmap, 0x10ffc000, 0x1000, 0, 0x1010, -1, 0);
+ syscall(SYS_mmap, 0x10ffc000, 0x1000, 0, 0x1010, -1, 0);
+ syscall(SYS_mprotect, 0x10ffe000, 0x2000, 7);
+ syscall(SYS_mprotect, 0x10ffd000, 0x3000, 0);
+ syscall(SYS_fork);
+ res = syscall(SYS_fork);
+ if (res != -1)
+ r[0] = res;
+ syscall(SYS_fork);
+ res = syscall(SYS_fork);
+ if (res != -1)
+ r[1] = res;
+ syscall(SYS_sigqueue, (intptr_t)r[1], 0x2b, 0);
+ res = syscall(SYS_fork);
+ if (res != -1)
+ r[2] = res;
+ syscall(SYS_sigqueue, (intptr_t)r[2], 0x2b, 0);
+ syscall(SYS_vfork);
+ syscall(SYS_fcntl, -1, 5, 0);
+ syscall(SYS_sigqueue, 0, 0x2b, 0);
+ syscall(SYS_getpgrp, (intptr_t)r[0]);
+ syscall(SYS_fork);
+ res = syscall(SYS_fork);
+ if (res != -1)
+ r[3] = res;
+ syscall(SYS_sigqueue, (intptr_t)r[3], 0x2b, 0);
+ syscall(SYS_getpid);
+ syscall(SYS_mmap, 0x10ffc000, 0x1000, 3, 0x10, -1, 7);
+ syscall(SYS_mmap, 0x10ffc000, 0x1000, 3, 0x10, -1, 7);
+ res = syscall(SYS_fork);
+ if (res != -1)
+ r[4] = res;
+ syscall(SYS_sigqueue, (intptr_t)r[4], 0xc, 0);
+ return 0;
+}
+EOF
+mycc -o /tmp/$prog -Wall -Wextra -O0 -m32 /tmp/$prog.c || exit 1
+
+(cd /tmp; timeout 2m ./$prog)
+
+rm -rf /tmp/$prog /tmp/$prog.c /tmp/syzkaller.*
+exit 0