diff options
Diffstat (limited to 'pkg/sentry/loader/loader.go')
| -rw-r--r-- | pkg/sentry/loader/loader.go | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/pkg/sentry/loader/loader.go b/pkg/sentry/loader/loader.go index 986c7fb4d..c69b62db9 100644 --- a/pkg/sentry/loader/loader.go +++ b/pkg/sentry/loader/loader.go @@ -122,7 +122,7 @@ func allocStack(ctx context.Context, m *mm.MemoryManager, a arch.Context) (*arch if err != nil { return nil, err } - return &arch.Stack{a, m, ar.End}, nil + return &arch.Stack{Arch: a, IO: m, Bottom: ar.End}, nil } const ( @@ -154,7 +154,7 @@ func loadExecutable(ctx context.Context, args LoadArgs) (loadedELF, arch.Context return loadedELF{}, nil, nil, nil, err } // Ensure file is release in case the code loops or errors out. - defer args.File.DecRef() + defer args.File.DecRef(ctx) } else { if err := checkIsRegularFile(ctx, args.File, args.Filename); err != nil { return loadedELF{}, nil, nil, nil, err @@ -215,15 +215,15 @@ func loadExecutable(ctx context.Context, args LoadArgs) (loadedELF, arch.Context // path and argv. // // Preconditions: -// * The Task MemoryManager is empty. -// * Load is called on the Task goroutine. +// * The Task MemoryManager is empty. +// * Load is called on the Task goroutine. func Load(ctx context.Context, args LoadArgs, extraAuxv []arch.AuxEntry, vdso *VDSO) (abi.OS, arch.Context, string, *syserr.Error) { // Load the executable itself. loaded, ac, file, newArgv, err := loadExecutable(ctx, args) if err != nil { return 0, nil, "", syserr.NewDynamic(fmt.Sprintf("failed to load %s: %v", args.Filename, err), syserr.FromError(err).ToLinux()) } - defer file.DecRef() + defer file.DecRef(ctx) // Load the VDSO. vdsoAddr, err := loadVDSO(ctx, args.MemoryManager, vdso, loaded) @@ -247,20 +247,20 @@ func Load(ctx context.Context, args LoadArgs, extraAuxv []arch.AuxEntry, vdso *V } // Push the original filename to the stack, for AT_EXECFN. - execfn, err := stack.Push(args.Filename) - if err != nil { + if _, err := stack.PushNullTerminatedByteSlice([]byte(args.Filename)); err != nil { return 0, nil, "", syserr.NewDynamic(fmt.Sprintf("Failed to push exec filename: %v", err), syserr.FromError(err).ToLinux()) } + execfn := stack.Bottom // Push 16 random bytes on the stack which AT_RANDOM will point to. var b [16]byte if _, err := rand.Read(b[:]); err != nil { return 0, nil, "", syserr.NewDynamic(fmt.Sprintf("Failed to read random bytes: %v", err), syserr.FromError(err).ToLinux()) } - random, err := stack.Push(b) - if err != nil { + if _, err = stack.PushNullTerminatedByteSlice(b[:]); err != nil { return 0, nil, "", syserr.NewDynamic(fmt.Sprintf("Failed to push random bytes: %v", err), syserr.FromError(err).ToLinux()) } + random := stack.Bottom c := auth.CredentialsFromContext(ctx) @@ -292,7 +292,7 @@ func Load(ctx context.Context, args LoadArgs, extraAuxv []arch.AuxEntry, vdso *V m.SetEnvvStart(sl.EnvvStart) m.SetEnvvEnd(sl.EnvvEnd) m.SetAuxv(auxv) - m.SetExecutable(file) + m.SetExecutable(ctx, file) symbolValue, err := getSymbolValueFromVDSO("rt_sigreturn") if err != nil { |