diff options
Diffstat (limited to 'tools/test/stress2/misc/syzkaller82.sh')
| -rwxr-xr-x | tools/test/stress2/misc/syzkaller82.sh | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/syzkaller82.sh b/tools/test/stress2/misc/syzkaller82.sh new file mode 100755 index 000000000000..c810942eb060 --- /dev/null +++ b/tools/test/stress2/misc/syzkaller82.sh @@ -0,0 +1,122 @@ +#!/bin/sh + +# panic: m_apply, length > size of mbuf chain (8 extra) +# cpuid = 1 +# time = 1753341719 +# KDB: stack backtrace: +# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe01f00c5080 +# vpanic() at vpanic+0x136/frame 0xfffffe01f00c51b0 +# panic() at panic+0x43/frame 0xfffffe01f00c5210 +# m_apply() at m_apply+0x2d3/frame 0xfffffe01f00c5260 +# sctp_delayed_cksum() at sctp_delayed_cksum+0x4c/frame 0xfffffe01f00c5290 +# ip6_output_delayed_csum() at ip6_output_delayed_csum+0xaa/frame 0xfffffe01f00c52d0 +# ip6_output() at ip6_output+0x19e6/frame 0xfffffe01f00c5490 +# sctp_lowlevel_chunk_output() at sctp_lowlevel_chunk_output+0x104f/frame 0xfffffe01f00c55d0 +# sctp_med_chunk_output() at sctp_med_chunk_output+0x2ad2/frame 0xfffffe01f00c5fb0 +# sctp_chunk_output() at sctp_chunk_output+0x121c/frame 0xfffffe01f00c6960 +# sctp_lower_sosend() at sctp_lower_sosend+0x146c/frame 0xfffffe01f00c6b50 +# sctp_sosend() at sctp_sosend+0x333/frame 0xfffffe01f00c6c70 +# sousrsend() at sousrsend+0x79/frame 0xffkern_sendit() at kern_sendit+0x1be/frame 0xfffffe01f00c6d60 +# sendit() at sendit+0x1ab/frame 0xfffffe01f00c6db0 +# sys_sendto() at sys_sendto+0x4d/frame 0xfffffe01f00c6e00 +# amd64_syscall() at amd64_syscall+0x169/frame 0xfffffe01f00c6f30 +# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe01f00c6f30 +# --- syscall (0, FreeBSD ELF64, syscall), rip = 0x823035b0a, rsp = 0x8208fa048, rbp = 0x8208fa060 --- +# KDB: enter: panic +# [ thread pid 41871 tid 736799 ] +# Stopped at kdb_enter+0x33: movq $0,0x1231b52(%rip) +# db> x/s version +# version: FreeBSD 15.0-CURRENT #0 main-n279001-7502c1f27082-dirty: Wed Jul 23 20:31:48 CEST 2025 +# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO +# db> + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg +set -u +prog=$(basename "$0" .sh) +cat > /tmp/$prog.c <<EOF +// https://syzkaller.appspot.com/bug?id=09297b76b7db4aa29c86ac971062bc078b06c0ff +// autogenerated by syzkaller (https://github.com/google/syzkaller) +// syzbot+73fe316271df473230eb@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, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, + /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, + /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul, + /*fd=*/(intptr_t)-1, /*offset=*/0ul); + const char* reason; + (void)reason; + intptr_t res = 0; + if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { + } + res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=SOCK_STREAM*/ 1ul, + /*proto=*/0x84); + if (res != -1) + r[0] = res; + *(uint8_t*)0x2000000001c0 = 0x10; + *(uint8_t*)0x2000000001c1 = 2; + *(uint16_t*)0x2000000001c2 = htobe16(0x4e23); + *(uint32_t*)0x2000000001c4 = htobe32(0); + memset((void*)0x2000000001c8, 0, 8); + memset((void*)0x2000000001d0, 0, 112); + *(uint32_t*)0x200000000240 = 0; + *(uint32_t*)0x200000000244 = 0x5234; + *(uint32_t*)0x200000000248 = 0xffff; + *(uint32_t*)0x20000000024c = 0x314; + *(uint32_t*)0x200000000250 = 0x3bb; + *(uint16_t*)0x200000000254 = 2; + *(uint8_t*)0x200000000256 = 9; + syscall(SYS_setsockopt, /*fd=*/r[0], /*level=*/0x84, /*opt=*/0xa, + /*val=*/0x2000000001c0ul, /*len=*/0x98ul); + *(uint8_t*)0x200000000000 = 0x1c; + *(uint8_t*)0x200000000001 = 0x1c; + *(uint16_t*)0x200000000002 = htobe16(0x4e22); + *(uint32_t*)0x200000000004 = 0; + memset((void*)0x200000000008, 0, 16); + *(uint32_t*)0x200000000018 = 0; + syscall(SYS_bind, /*fd=*/r[0], /*addr=*/0x200000000000ul, /*addrlen=*/0x1cul); + *(uint8_t*)0x200000000180 = 0x5f; + *(uint8_t*)0x200000000181 = 0x1c; + *(uint16_t*)0x200000000182 = htobe16(0x4e22); + *(uint32_t*)0x200000000184 = 0; + *(uint64_t*)0x200000000188 = htobe64(0); + *(uint64_t*)0x200000000190 = htobe64(1); + *(uint32_t*)0x200000000198 = 0; + syscall(SYS_connect, /*fd=*/r[0], /*addr=*/0x200000000180ul, + /*addrlen=*/0x1cul); + memset((void*)0x2000000020c0, 209, 1); + syscall(SYS_sendto, /*fd=*/r[0], /*buf=*/0x2000000020c0ul, /*len=*/0xffeful, + /*f=MSG_NOSIGNAL|MSG_EOF|MSG_DONTWAIT|MSG_DONTROUTE*/ 0x20184ul, + /*addr=*/0ul, /*addrlen=*/0ul); + return 0; +} +EOF +mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c || exit 1 + +work=/tmp/$prog.dir +rm -rf $work +mkdir $work +cd /tmp/$prog.dir +kldstat | grep -q sctp || { kldload sctp.ko && loaded=1; } +timeout 3m /tmp/$prog > /dev/null 2>&1 + +rm -rf /tmp/$prog /tmp/$prog.c /tmp/$prog.core /tmp/$prog.?????? $work +[ $loaded ] && kldunload sctp.ko +exit 0 |