diff options
Diffstat (limited to 'pkg/host')
| -rw-r--r-- | pkg/host/syscalls.go | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/pkg/host/syscalls.go b/pkg/host/syscalls.go index d63c7ceef..e322fc3b1 100644 --- a/pkg/host/syscalls.go +++ b/pkg/host/syscalls.go @@ -16,16 +16,24 @@ func DetectSupportedSyscalls(target *prog.Target, sandbox string) ( log.Logf(1, "detecting supported syscalls") supported := make(map[*prog.Syscall]bool) unsupported := make(map[*prog.Syscall]string) + const disabledAttribute = "has disabled attribute in descriptions" // These do not have own host and parasitize on some other OS. if targets.Get(target.OS, target.Arch).HostFuzzer { for _, c := range target.Syscalls { - supported[c] = true + if c.Attrs.Disabled { + unsupported[c] = disabledAttribute + } else { + supported[c] = true + } } } else { for _, c := range target.Syscalls { ok, reason := false, "" - switch c.CallName { - case "syz_execute_func": + switch { + case c.Attrs.Disabled: + ok = false + reason = disabledAttribute + case c.CallName == "syz_execute_func": // syz_execute_func caused multiple problems: // 1. First it lead to corpus exploision. The program used existing values in registers // to pollute output area. We tried to zero registers (though, not reliably). @@ -55,12 +63,6 @@ func DetectSupportedSyscalls(target *prog.Target, sandbox string) ( } } } - for c := range supported { - if c.Attrs.Disabled { - delete(supported, c) - unsupported[c] = "has disabled attribute in descriptions" - } - } return supported, unsupported, nil } |