diff options
Diffstat (limited to 'results/classifier/105/KVM/1908513')
| -rw-r--r-- | results/classifier/105/KVM/1908513 | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/results/classifier/105/KVM/1908513 b/results/classifier/105/KVM/1908513 new file mode 100644 index 00000000..d637a834 --- /dev/null +++ b/results/classifier/105/KVM/1908513 @@ -0,0 +1,81 @@ +KVM: 0.865 +vnc: 0.847 +other: 0.825 +graphic: 0.784 +instruction: 0.765 +device: 0.759 +mistranslation: 0.756 +semantic: 0.741 +assembly: 0.732 +boot: 0.727 +socket: 0.724 +network: 0.706 + +assertion failure in mptsas1068 emulator + +Using hypervisor fuzzer, hyfuzz, I found an assertion failure through mptsas1068 emulator. + +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) + + +qemu-system-i386: ../hw/scsi/mptsas.c:968: void mptsas_interrupt_status_write(MPTSASState *): Assertion +`s->intr_status & MPI_HIS_DOORBELL_INTERRUPT' failed. +[1] 16951 abort (core dumped) /home/cwmyung/prj/hyfuzz/src/qemu-5.2/build/qemu-system-i386 -m 512 -drive + +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 0x7fc7d6023700 (LWP 23475))] +gdb-peda$ bt +#0 0x00007fc7efa13f47 in __GI_raise (sig=sig@entry=0x6) at ../sysdeps/unix/sysv/linux/raise.c:51 +#1 0x00007fc7efa158b1 in __GI_abort () at abort.c:79 +#2 0x00007fc7efa0542a in __assert_fail_base (fmt=0x7fc7efb8ca38 "%s%s%s:%u: %s%sAssertion `%s' failed.\\n%n", assertion=assertion@entry=0x56439214d593 "s->intr_status & MPI_HIS_DOORBELL_INTERRUPT", file=file@entry=0x56439214d4a7 "../hw/scsi/mptsas.c", line=line@entry=0x3c8, function=function@entry=0x56439214d81c "void mptsas_interrupt_status_write(MPTSASState *)") at assert.c:92 +#3 0x00007fc7efa054a2 in __GI___assert_fail (assertion=0x56439214d593 "s->intr_status & MPI_HIS_DOORBELL_INTERRUPT", file=0x56439214d4a7 "../hw/scsi/mptsas.c", line=0x3c8, function=0x56439214d81c "void mptsas_interrupt_status_write(MPTSASState *)") at assert.c:101 +#4 0x0000564391a43963 in mptsas_interrupt_status_write (s=<optimized out>) at ../hw/scsi/mptsas.c:968 +#5 0x0000564391a43963 in mptsas_mmio_write (opaque=0x5643943dd5b0, addr=0x30, val=0x18000000, size=<optimized out>) at ../hw/scsi/mptsas.c:1052 +#6 0x0000564391e08798 in memory_region_write_accessor (mr=<optimized out>, addr=<optimized out>, value=<optimized out>, size=<optimized out>, shift=<optimized out>, mask=<optimized out>, attrs=...) + at ../softmmu/memory.c:491 +#7 0x0000564391e0858e in access_with_adjusted_size (addr=<optimized out>, value=<optimized out>, size=<optimized out>, access_size_min=<optimized out>, access_size_max=<optimized out>, access_fn=<optimized out>, mr=<optimized out>, attrs=...) at ../softmmu/memory.c:552 +#8 0x0000564391e0858e in memory_region_dispatch_write (mr=0x5643943ddea0, addr=<optimized out>, data=<optimized out>, op=<optimized out>, attrs=...) at ../softmmu/memory.c:1501 +#9 0x0000564391eff228 in io_writex (iotlbentry=<optimized out>, mmu_idx=<optimized out>, val=<optimized out>, addr=<optimized out>, retaddr=<optimized out>, op=<optimized out>, env=<optimized out>) + at ../accel/tcg/cputlb.c:1378 +#10 0x0000564391eff228 in store_helper (env=<optimized out>, addr=<optimized out>, val=<optimized out>, oi=<optimized out>, retaddr=<optimized out>, op=MO_32) at ../accel/tcg/cputlb.c:2397 +#11 0x0000564391eff228 in helper_le_stl_mmu (env=<optimized out>, addr=<optimized out>, val=0x2, oi=<optimized out>, retaddr=0x7fc78841b401) at ../accel/tcg/cputlb.c:2463 +#12 0x00007fc78841b401 in code_gen_buffer () +#13 0x0000564391dd0da0 in cpu_tb_exec (cpu=0x56439363e650, itb=<optimized out>) at ../accel/tcg/cpu-exec.c:178 +#14 0x0000564391dd19eb in cpu_loop_exec_tb (tb=<optimized out>, cpu=<optimized out>, last_tb=<optimized out>, tb_exit=<optimized out>) at ../accel/tcg/cpu-exec.c:658 +#15 0x0000564391dd19eb in cpu_exec (cpu=0x56439363e650) at ../accel/tcg/cpu-exec.c:771 +#16 0x0000564391e00b9f in tcg_cpu_exec (cpu=<optimized out>) at ../accel/tcg/tcg-cpus.c:243 +#17 0x0000564391e00b9f in tcg_cpu_thread_fn (arg=0x56439363e650) at ../accel/tcg/tcg-cpus.c:427 +#18 0x00005643920d8775 in qemu_thread_start (args=<optimized out>) at ../util/qemu-thread-posix.c:521 +#19 0x00007fc7efdcd6db in start_thread (arg=0x7fc7d6023700) at pthread_create.c:463 + +To reproduce this issue, please run the QEMU with the following command line. + + +# To enable ASan option, please set configuration with the following command +$ ./configure --target-list=i386-softmmu --disable-werror --enable-sanitizers +$ make + +# To reproduce this issue, please run the QEMU process with the following command line. +$ ./qemu-system-i386 -m 512 -drive file=./hyfuzz.img,index=0,media=disk,format=raw -device mptsas1068,id=scsi -device scsi-hd,drive=SysDisk -drive id=SysDisk,if=none,file=./disk.img + +Please let me know if I can provide any further info. +Thank you. + +- Cheolwoo, Myung (Seoul National University) + + + +This still triggers with the current version from git master, marking as Confirmed + + +This is an automated cleanup. This bug report has been moved to QEMU's +new bug tracker on gitlab.com and thus gets marked as 'expired' now. +Please continue with the discussion here: + + https://gitlab.com/qemu-project/qemu/-/issues/304 + + |