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Diffstat (limited to 'results/classifier/108/none/1863445')
| -rw-r--r-- | results/classifier/108/none/1863445 | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/results/classifier/108/none/1863445 b/results/classifier/108/none/1863445 new file mode 100644 index 000000000..440dcfa48 --- /dev/null +++ b/results/classifier/108/none/1863445 @@ -0,0 +1,58 @@ +debug: 0.540 +device: 0.454 +PID: 0.448 +socket: 0.412 +vnc: 0.378 +performance: 0.364 +network: 0.288 +semantic: 0.272 +other: 0.247 +boot: 0.200 +permissions: 0.181 +files: 0.172 +KVM: 0.133 +graphic: 0.110 + +assertion failed at translate-all.c:2523 with version 3.1.1 + +I was trying to debug a userspace binary with radare2 and met the following assertion in qemu: + +``` +qemu-mipsel: /builddir/build/BUILD/qemu-3.1.1/accel/tcg/translate-all.c:2523: page_check_range: Assertion `start < ((target_ulong)1 << L1_MAP_ADDR_SPACE_BITS)' failed. +qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x7fd1c11c5987 +``` + +``` +# qemu-mipsel --version +qemu-mipsel version 3.1.1 (qemu-3.1.1-2.fc30) +Copyright (c) 2003-2018 Fabrice Bellard and the QEMU Project developers +``` + +not much to add. seems like qemu is not properly checking for valid addresses + + + +in order to reproduce the bug: +``` +qemu-mipsel -g 1234 ch67 +``` + +and then juste launch (after installing r2): + +``` +r2 -a mips -b 32 -d gdb://127.0.0.1:1234 +``` + +qemu will crash + +tested on fedora 30: +``` +uname -a +Linux bigfoot.home.ak42.io 5.4.18-100.fc30.x86_64 #1 SMP Fri Feb 7 14:37:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux +``` + +Please try again with 4.2; there have been changes in this function. + +indeed, works fine with 4.2 +thanks + |