diff options
| author | Alexander Potapenko <glider@google.com> | 2025-11-24 12:09:16 +0100 |
|---|---|---|
| committer | Alexander Potapenko <glider@google.com> | 2025-11-24 17:06:13 +0000 |
| commit | 64219f1537429ca826770c4d6f3d49ee6964d16c (patch) | |
| tree | 7f6f3452eb5d6aab7089d420b410c103a1f2244c /sys/linux | |
| parent | 718d1e1a0b5ba1e8129ad1466452c397ed1e3c94 (diff) | |
sys/linux: apply no_squash to certain KVM ioctls
For the following KVM ioctls:
- KVM_SET_GSI_ROUTING
- KVM_SET_SIGNAL_MASK
- KVM_SET_MSRS
- KVM_SET_CPUID
- KVM_SET_CPUID2
syzkaller is generating squashed blobs, which are less likely to provoke
any interesting behaviors.
Apply the no_squash attribute to these ioctls to have better understanding
of these ioctls' inputs.
Diffstat (limited to 'sys/linux')
| -rw-r--r-- | sys/linux/dev_kvm.txt | 4 | ||||
| -rw-r--r-- | sys/linux/dev_kvm_amd64.txt | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/sys/linux/dev_kvm.txt b/sys/linux/dev_kvm.txt index ec342b320..13c9c7c67 100644 --- a/sys/linux/dev_kvm.txt +++ b/sys/linux/dev_kvm.txt @@ -35,7 +35,7 @@ ioctl$KVM_IRQ_LINE_STATUS(fd fd_kvmvm, cmd const[KVM_IRQ_LINE_STATUS], arg ptr[i ioctl$KVM_SET_USER_MEMORY_REGION(fd fd_kvmvm, cmd const[KVM_SET_USER_MEMORY_REGION], arg ptr[in, kvm_userspace_memory_region]) ioctl$KVM_SET_USER_MEMORY_REGION2(fd fd_kvmvm, cmd const[KVM_SET_USER_MEMORY_REGION2], arg ptr[in, kvm_userspace_memory_region2]) ioctl$KVM_PPC_GET_PVINFO(fd fd_kvmvm, cmd const[KVM_PPC_GET_PVINFO], arg buffer[out]) -ioctl$KVM_SET_GSI_ROUTING(fd fd_kvmvm, cmd const[KVM_SET_GSI_ROUTING], arg ptr[in, kvm_irq_routing]) +ioctl$KVM_SET_GSI_ROUTING(fd fd_kvmvm, cmd const[KVM_SET_GSI_ROUTING], arg ptr[in, kvm_irq_routing]) (no_squash) ioctl$KVM_ASSIGN_SET_MSIX_NR(fd fd_kvmvm, cmd const[KVM_ASSIGN_SET_MSIX_NR], arg ptr[in, kvm_assigned_msix_nr]) ioctl$KVM_ASSIGN_SET_MSIX_ENTRY(fd fd_kvmvm, cmd const[KVM_ASSIGN_SET_MSIX_ENTRY], arg ptr[in, kvm_assigned_msix_entry]) ioctl$KVM_IOEVENTFD(fd fd_kvmvm, cmd const[KVM_IOEVENTFD], arg ptr[in, kvm_ioeventfd]) @@ -63,7 +63,7 @@ ioctl$KVM_SET_REGS(fd fd_kvmcpu, cmd const[KVM_SET_REGS], arg ptr[in, kvm_regs]) ioctl$KVM_GET_SREGS(fd fd_kvmcpu, cmd const[KVM_GET_SREGS], arg ptr[out, kvm_sregs]) ioctl$KVM_SET_SREGS(fd fd_kvmcpu, cmd const[KVM_SET_SREGS], arg ptr[in, kvm_sregs]) ioctl$KVM_INTERRUPT(fd fd_kvmcpu, cmd const[KVM_INTERRUPT], arg ptr[in, int32]) -ioctl$KVM_SET_SIGNAL_MASK(fd fd_kvmcpu, cmd const[KVM_SET_SIGNAL_MASK], arg ptr[in, kvm_signal_mask]) +ioctl$KVM_SET_SIGNAL_MASK(fd fd_kvmcpu, cmd const[KVM_SET_SIGNAL_MASK], arg ptr[in, kvm_signal_mask]) (no_squash) ioctl$KVM_GET_VCPU_EVENTS(fd fd_kvmcpu, cmd const[KVM_GET_VCPU_EVENTS], arg ptr[out, kvm_vcpu_events]) ioctl$KVM_SET_VCPU_EVENTS(fd fd_kvmcpu, cmd const[KVM_SET_VCPU_EVENTS], arg ptr[in, kvm_vcpu_events]) ioctl$KVM_GET_MP_STATE(fd fd_kvmcpu, cmd const[KVM_GET_MP_STATE], arg ptr[out, int32]) diff --git a/sys/linux/dev_kvm_amd64.txt b/sys/linux/dev_kvm_amd64.txt index 9d1b6fdfc..19a5c841c 100644 --- a/sys/linux/dev_kvm_amd64.txt +++ b/sys/linux/dev_kvm_amd64.txt @@ -534,11 +534,11 @@ ioctl$KVM_TRANSLATE(fd fd_kvmcpu, cmd const[KVM_TRANSLATE], arg ptr[inout, kvm_t # KVM_GET_MSRS can be both a system and a vcpu ioctl: https://docs.kernel.org/virt/kvm/api.html#kvm-get-msrs ioctl$KVM_GET_MSRS_sys(fd fd_kvm, cmd const[KVM_GET_MSRS], arg ptr[inout, kvm_msrs]) ioctl$KVM_GET_MSRS_cpu(fd fd_kvmcpu, cmd const[KVM_GET_MSRS], arg ptr[inout, kvm_msrs]) -ioctl$KVM_SET_MSRS(fd fd_kvmcpu, cmd const[KVM_SET_MSRS], arg ptr[in, kvm_msrs]) -ioctl$KVM_SET_CPUID(fd fd_kvmcpu, cmd const[KVM_SET_CPUID], arg ptr[in, kvm_cpuid]) +ioctl$KVM_SET_MSRS(fd fd_kvmcpu, cmd const[KVM_SET_MSRS], arg ptr[in, kvm_msrs]) (no_squash) +ioctl$KVM_SET_CPUID(fd fd_kvmcpu, cmd const[KVM_SET_CPUID], arg ptr[in, kvm_cpuid]) (no_squash) # NEED: we should be able to read kvm_cpuid2 with KVM_GET_CPUID2, alter few bits and then call KVM_SET_CPUID2 with that object. ioctl$KVM_GET_CPUID2(fd fd_kvmcpu, cmd const[KVM_GET_CPUID2], arg ptr[out, kvm_cpuid2]) -ioctl$KVM_SET_CPUID2(fd fd_kvmcpu, cmd const[KVM_SET_CPUID2], arg ptr[in, kvm_cpuid2]) +ioctl$KVM_SET_CPUID2(fd fd_kvmcpu, cmd const[KVM_SET_CPUID2], arg ptr[in, kvm_cpuid2]) (no_squash) ioctl$KVM_GET_SUPPORTED_CPUID(fd fd_kvm, cmd const[KVM_GET_SUPPORTED_CPUID], arg ptr[inout, kvm_cpuid2]) # KVM_GET_SUPPORTED_HV_CPUID is both a system and a vcpu ioctl: https://docs.kernel.org/virt/kvm/api.html#kvm-get-supported-hv-cpuid ioctl$KVM_GET_SUPPORTED_HV_CPUID_sys(fd fd_kvm, cmd const[KVM_GET_SUPPORTED_HV_CPUID], arg ptr[inout, kvm_cpuid2]) |