diff options
Diffstat (limited to 'results/classifier/accel-gemma3:12b/kvm/1904652')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/kvm/1904652 | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/kvm/1904652 b/results/classifier/accel-gemma3:12b/kvm/1904652 new file mode 100644 index 000000000..1961c42a8 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/kvm/1904652 @@ -0,0 +1,51 @@ + +Assertion failure in usb-ohci + +Hello, + +Using hypervisor fuzzer, hyfuzz, I found an assertion failure through usb-ohci. + +A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service. + +This was found in version 5.2.0 (master) + +-------- + +``` + +Program terminated with signal SIGABRT, Aborted. + +#0 __GI_raise (sig=sig@entry=0x6) at ../sysdeps/unix/sysv/linux/raise.c:51 +51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. +[Current thread is 1 (Thread 0x7f34d0411440 (LWP 9418))] +gdb-peda$ bt +#0 0x00007f34c8d4ef47 in __GI_raise (sig=sig@entry=0x6) at ../sysdeps/unix/sysv/linux/raise.c:51 +#1 0x00007f34c8d508b1 in __GI_abort () at abort.c:79 +#2 0x000055d3a2081844 in ohci_frame_boundary (opaque=0x55d3a4ecdaf0) at ../hw/usb/hcd-ohci.c:1297 +#3 0x000055d3a25be155 in timerlist_run_timers (timer_list=0x55d3a3fd9840) at ../util/qemu-timer.c:574 +#4 0x000055d3a25beaba in qemu_clock_run_timers (type=QEMU_CLOCK_VIRTUAL) at ../util/qemu-timer.c:588 +#5 0x000055d3a25beaba in qemu_clock_run_all_timers () at ../util/qemu-timer.c:670 +#6 0x000055d3a25e69a1 in main_loop_wait (nonblocking=<optimized out>) at ../util/main-loop.c:531 +#7 0x000055d3a2433972 in qemu_main_loop () at ../softmmu/vl.c:1678 +#8 0x000055d3a1d0969b in main (argc=<optimized out>, argc@entry=0x15, argv=<optimized out>, + argv@entry=0x7ffc6de722a8, envp=<optimized out>) at ../softmmu/main.c:50 +#9 0x00007f34c8d31b97 in __libc_start_main (main= + 0x55d3a1d09690 <main>, argc=0x15, argv=0x7ffc6de722a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc6de72298) at ../csu/libc-start.c:310 +#10 0x000055d3a1d095aa in _start () +``` + +To reproduce the assertion failure, please run the QEMU with the following command line. + +``` +[Terminal 1] + +$ qemu-system-i386 -m 512 -drive file=./fs.img,index=1,media=disk,format=raw -drive file=./hyfuzz.img,index=0,media=disk,format=raw -drive if=none,id=stick,file=./usbdisk.img,format=raw -device pci-ohci,id=usb -device usb-storage,bus=usb.0,drive=stick + +[Terminal 2] + +$ ./repro_log ./fs.img ./pci-ohci + +``` + +Please let me know if I can provide any further info. +-Cheolwoo, Myung (Seoul National University) \ No newline at end of file |