git: e3b31e23ffdf - main - stress2: Added two syzkaller reproducers
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Date: Sat, 25 Jun 2022 06:40:49 UTC
The branch main has been updated by pho:
URL: https://cgit.FreeBSD.org/src/commit/?id=e3b31e23ffdf009d41a7f74ba76271f1307f44e2
commit e3b31e23ffdf009d41a7f74ba76271f1307f44e2
Author: Peter Holm <pho@FreeBSD.org>
AuthorDate: 2022-06-25 06:40:20 +0000
Commit: Peter Holm <pho@FreeBSD.org>
CommitDate: 2022-06-25 06:40:20 +0000
stress2: Added two syzkaller reproducers
---
tools/test/stress2/misc/all.exclude | 3 +-
tools/test/stress2/misc/syzkaller59.sh | 154 +++++++++++++++++++++++++++++++++
tools/test/stress2/misc/syzkaller60.sh | 103 ++++++++++++++++++++++
3 files changed, 259 insertions(+), 1 deletion(-)
diff --git a/tools/test/stress2/misc/all.exclude b/tools/test/stress2/misc/all.exclude
index ac5576ed1308..22cbea832194 100644
--- a/tools/test/stress2/misc/all.exclude
+++ b/tools/test/stress2/misc/all.exclude
@@ -63,7 +63,8 @@ syzkaller28.sh WiP 20201120
syzkaller50.sh panic: Assertion done != job_total_nbytes failed at ... 20220405
syzkaller54.sh panic: td 0xfffffe014f7193a0 is not suspended 20220527
syzkaller55.sh panic: Counter goes negative 20220525
-timeout.sh Waiting for commit
+syzkaller59.sh Page fault 20220625
+syzkaller60.sh Page fault 20220625
truss3.sh WiP 20200915
unionfs14.sh WiP 20220111
unionfs9.sh https://people.freebsd.org/~pho/stress/log/log0226.txt 20220111
diff --git a/tools/test/stress2/misc/syzkaller59.sh b/tools/test/stress2/misc/syzkaller59.sh
new file mode 100755
index 000000000000..b628c25d3298
--- /dev/null
+++ b/tools/test/stress2/misc/syzkaller59.sh
@@ -0,0 +1,154 @@
+#!/bin/sh
+
+# Fatal trap 12: page fault while in kernel mode
+# cpuid = 8; apic id = 08
+# fault virtual address = 0x8
+# fault code = supervisor read data, page not present
+# instruction pointer = 0x20:0xffffffff80b98b73
+# stack pointer = 0x0:0xfffffe06996fc700
+# frame pointer = 0x0:0xfffffe06996fc730
+# code segment = base 0x0, limit 0xfffff, type 0x1b
+# = DPL 0, pres 1, long 1, def32 0, gran 1
+# processor eflags = interrupt enabled, resume, IOPL = 0
+# current process = 46538 (repro11)
+# trap number = 12
+# panic: page fault
+# cpuid = 8
+# time = 1655883715
+# KDB: stack backtrace:
+# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe06996fc4c0
+# vpanic() at vpanic+0x151/frame 0xfffffe06996fc510
+# panic() at panic+0x43/frame 0xfffffe06996fc570
+# trap_fatal() at trap_fatal+0x387/frame 0xfffffe06996fc5d0
+# trap_pfault() at trap_pfault+0xab/frame 0xfffffe06996fc630
+# calltrap() at calltrap+0x8/frame 0xfffffe06996fc630
+# --- trap 0xc, rip = 0xffffffff80b98b73, rsp = 0xfffffe06996fc700, rbp = 0xfffffe06996fc730 ---
+# knlist_remove_kq() at knlist_remove_kq+0xa3/frame 0xfffffe06996fc730
+# kqueue_drain() at kqueue_drain+0x2c8/frame 0xfffffe06996fc770
+# kqueue_close() at kqueue_close+0x7e/frame 0xfffffe06996fc7b0
+# _fdrop() at _fdrop+0x1b/frame 0xfffffe06996fc7d0
+# closef() at closef+0x1db/frame 0xfffffe06996fc860
+# fdescfree() at fdescfree+0x433/frame 0xfffffe06996fc930
+# exit1() at exit1+0x4ef/frame 0xfffffe06996fc9a0
+# sigexit() at sigfce20
+# postsig() at postsig+0x1aa/frame 0xfffffe06996fcef0
+# ast() at ast+0x4fb/frame 0xfffffe06996fcf30
+# doreti_ast() at doreti_ast+0x1f/frame 0x821076840
+# KDB: enter: panic
+# [ thread pid 46538 tid 356284 ]
+# Stopped at kdb_enter+0x32: movq $0,0x129f1a3(%rip)
+# db> x/s version
+# version: FreeBSD 14.0-CURRENT #0 main-n256236-4f1d91e413d7e: Wed Jun 22 07:47:51 CEST 2022
+# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO
+# db>
+
+[ `uname -p` != "amd64" ] && exit 0
+
+. ../default.cfg
+cat > /tmp/syzkaller59.c <<EOF
+// https://syzkaller.appspot.com/bug?id=17dea08cb46e51310db9047c400d1ff4646d2f9a
+// autogenerated by syzkaller (https://github.com/google/syzkaller)
+// Reported-by: syzbot+c94f6c97744bd9f9d14d@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;
+ }
+ }
+}
+
+uint64_t r[1] = {0xffffffffffffffff};
+
+void execute_one(void)
+{
+ intptr_t res = 0;
+ res = syscall(SYS_kqueue);
+ if (res != -1)
+ r[0] = res;
+ *(uint64_t*)0x20000140 = 0;
+ *(uint16_t*)0x20000148 = 0xfffa;
+ *(uint16_t*)0x2000014a = 0x4021;
+ *(uint32_t*)0x2000014c = 0;
+ *(uint64_t*)0x20000150 = 0;
+ *(uint64_t*)0x20000158 = 0;
+ *(uint64_t*)0x20000160 = 0;
+ *(uint64_t*)0x20000168 = 0;
+ *(uint64_t*)0x20000170 = 0;
+ *(uint64_t*)0x20000178 = 0;
+ syscall(SYS_kevent, r[0], 0x20000140ul, 1ul, 0ul, 0ul, 0ul);
+ syscall(SYS_rfork, 0x90030ul);
+}
+int main(void)
+{
+ syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
+ loop();
+ return 0;
+}
+EOF
+mycc -o /tmp/syzkaller59 -Wall -Wextra -O0 /tmp/syzkaller59.c || exit 1
+
+(cd /tmp; timeout 3m ./syzkaller59)
+
+rm -rf /tmp/syzkaller59 /tmp/syzkaller59.c /tmp/syzkaller59.core \
+ /tmp/syzkaller.??????
+exit 0
diff --git a/tools/test/stress2/misc/syzkaller60.sh b/tools/test/stress2/misc/syzkaller60.sh
new file mode 100755
index 000000000000..cc93834152ae
--- /dev/null
+++ b/tools/test/stress2/misc/syzkaller60.sh
@@ -0,0 +1,103 @@
+#!/bin/sh
+
+# Fatal trap 12: page fault while in kernel mode
+# cpuid = 5; apic id = 05
+# fault virtual address = 0x3e07d728
+# fault code = supervisor write data, page not present
+# instruction pointer = 0x20:0xffffffff80c9ba1d
+# stack pointer = 0x28:0xfffffe014d9ceba0
+# frame pointer = 0x28:0xfffffe014d9cec00
+# code segment = base 0x0, limit 0xfffff, type 0x1b
+# = DPL 0, pres 1, long 1, def32 0, gran 1
+# processor eflags = interrupt enabled, resume, IOPL = 0
+# current process = 3135 (syzkaller60)
+# trap number = 12
+# panic: page fault
+# cpuid = 5
+# time = 1656134459
+# KDB: stack backtrace:
+# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe014d9ce960
+# vpanic() at vpanic+0x151/frame 0xfffffe014d9ce9b0
+# panic() at panic+0x43/frame 0xfffffe014d9cea10
+# trap_fatal() at trap_fatal+0x387/frame 0xfffffe014d9cea70
+# trap_pfault() at trap_pfault+0xab/frame 0xfffffe014d9cead0
+# calltrap() at calltrap+0x8/frame 0xfffffe014d9cead0
+# --- trap 0xc, rip = 0xffffffff80c9ba1d, rsp = 0xfffffe014d9ceba0, rbp = 0xfffffe014d9cec00 ---
+# soclose() at soclose+0x1ad/frame 0xfffffe014d9cec00
+# _fdrop() at _fdrop+0x1b/frame 0xfffffe014d9cec20
+# closef() at closef+0x1db/frame 0xfffffe014d9cecb0
+# fdescfree() at fdescfree+0x433/frame 0xfffffe014d9ced80
+# exit1() at exit1+0x4ef/frame 0xfffffe014d9cedf0
+# sys_exit() at sys_exit+0xd/frame 0xfffffe014d9cee00
+# amd64_syscall() md64_syscall+0x145/frame 0xfffffe014d9cef30
+# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe014d9cef30
+# --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x82209fdca, rsp = 0x820fab718, rbp = 0x820fab730 ---
+# KDB: enter: panic
+# [ thread pid 3135 tid 100332 ]
+# Stopped at kdb_enter+0x32: movq $0,0x129f1a3(%rip)
+# db> x/s version
+# version: FreeBSD 14.0-CURRENT #0 main-n256319-c11e64ce51308: Sat Jun 25 07:12:49 CEST 2022\012
+# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO
+# db>
+
+[ `uname -p` != "amd64" ] && exit 0
+
+. ../default.cfg
+cat > /tmp/syzkaller60.c <<EOF
+// https://syzkaller.appspot.com/bug?id=c08c1aff3eaffde1197888c66684fabf474f3305
+// autogenerated by syzkaller (https://github.com/google/syzkaller)
+// Reported-by: syzbot+4b862074650b91e087b4@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[2] = {0xffffffffffffffff, 0xffffffffffffffff};
+
+int main(void)
+{
+ syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
+ intptr_t res = 0;
+ res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
+ if (res != -1)
+ r[0] = res;
+ *(uint8_t*)0x20000000 = 0x1c;
+ *(uint8_t*)0x20000001 = 0x1c;
+ *(uint16_t*)0x20000002 = htobe16(0x4e22);
+ *(uint32_t*)0x20000004 = 0;
+ memset((void*)0x20000008, 0, 16);
+ *(uint32_t*)0x20000018 = 0;
+ syscall(SYS_bind, r[0], 0x20000000ul, 0x1cul);
+ syscall(SYS_listen, r[0], 0x40000);
+ res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
+ if (res != -1)
+ r[1] = res;
+ *(uint8_t*)0x20000180 = 0x1c;
+ *(uint8_t*)0x20000181 = 0x1c;
+ *(uint16_t*)0x20000182 = htobe16(0x4e22);
+ *(uint32_t*)0x20000184 = 0;
+ *(uint64_t*)0x20000188 = htobe64(0);
+ *(uint64_t*)0x20000190 = htobe64(1);
+ *(uint32_t*)0x20000198 = 0;
+ syscall(SYS_connect, r[1], 0x20000180ul, 0x1cul);
+ return 0;
+}
+EOF
+mycc -o /tmp/syzkaller60 -Wall -Wextra -O0 /tmp/syzkaller60.c || exit 1
+
+kldstat | grep -q sctp || { kldload sctp.ko && loaded=1; }
+(cd /tmp; timeout 3m ./syzkaller60)
+
+rm -rf /tmp/syzkaller60 /tmp/syzkaller60.c /tmp/syzkaller60.core \
+ /tmp/syzkaller.??????
+[ $loaded ] && kldunload sctp.ko
+exit 0