diff options
| author | Alexander Potapenko <glider@google.com> | 2024-11-21 16:30:50 +0100 |
|---|---|---|
| committer | Alexander Potapenko <glider@google.com> | 2024-11-26 11:12:47 +0000 |
| commit | 2ebbc7259f2bda405779335b46a2f519f14ec473 (patch) | |
| tree | b81960041de957bb95a917df9c42924d8ac6de9b /sys/linux/dev_kvm.txt | |
| parent | ae34cc2c773d3522e98ab8f038e2e5875fb9dac4 (diff) | |
executor: arm64: sys/linux: allocate 1024 pages for guest address space
Pass 1024 pages of memory to both syz_kvm_setup_syzos_vm() and
syz_kvm_setup_cpu$arm64() to make sure that:
- there is enough memory for guest allocations (e.g. ITS pages)
- host can tamper with that memory, provoking more bugs
Diffstat (limited to 'sys/linux/dev_kvm.txt')
| -rw-r--r-- | sys/linux/dev_kvm.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/linux/dev_kvm.txt b/sys/linux/dev_kvm.txt index def833602..784b625fb 100644 --- a/sys/linux/dev_kvm.txt +++ b/sys/linux/dev_kvm.txt @@ -260,14 +260,14 @@ kvm_x86_rflags = 1, 2, 4, 16, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, # Pseudo call that setups VCPU into a reasonable interesting state for execution. # The interface is designed for extensibility so that addition of new options does not invalidate all existing programs. syz_kvm_setup_cpu$x86(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text_x86, 1]], ntext len[text], flags flags[kvm_setup_flags], opts ptr[in, array[kvm_setup_opt_x86, 0:2]], nopt len[opts]) -syz_kvm_setup_cpu$arm64(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text_arm64, 1]], ntext len[text], flags const[0], opts ptr[in, array[kvm_setup_opt_arm64, 1]], nopt len[opts]) +syz_kvm_setup_cpu$arm64(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[1024], text ptr[in, array[kvm_text_arm64, 1]], ntext len[text], flags const[0], opts ptr[in, array[kvm_setup_opt_arm64, 1]], nopt len[opts]) syz_kvm_setup_cpu$ppc64(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text_ppc64, 1]], ntext len[text], flags flags[kvm_setup_flags_ppc64], opts ptr[in, array[kvm_setup_opt_ppc64, 1]], nopt len[opts]) kvm_num_irqs = 32, 64, 128, 256, 512 # This pseudo-syscall is ARM64-specific. syz_kvm_vgic_v3_setup(fd fd_kvmvm, ncpus intptr[0:4], nirqs flags[kvm_num_irqs]) fd_kvmdev resource kvm_syz_vm[int64] -syz_kvm_setup_syzos_vm(fd fd_kvmvm) kvm_syz_vm +syz_kvm_setup_syzos_vm(fd fd_kvmvm, usermem vma[1024]) kvm_syz_vm syz_kvm_add_vcpu(vm kvm_syz_vm, text ptr[in, kvm_text_arm64], opts ptr[in, array[kvm_setup_opt_arm64, 1]], nopt len[opts]) fd_kvmcpu resource kvm_run_ptr[int64] |