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Merge release-20191104.0-44-gaf323eb (automated)

This commit is contained in:
gVisor bot 2019-11-15 01:15:23 +00:00
parent d078524540 af323eb7c1
commit 2539a555d1
1 changed files with 9 additions and 14 deletions
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23
pkg/sentry/syscalls/linux/sys_socket.go
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@ -447,16 +447,13 @@ func GetSockOpt(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sy
return 0, nil, syserror.ENOTSOCK
}
// Read the length if present. Reject negative values.
// Read the length. Reject negative values.
optLen := int32(0)
if optLenAddr != 0 {
if _, err := t.CopyIn(optLenAddr, &optLen); err != nil {
return 0, nil, err
}
if optLen < 0 {
return 0, nil, syserror.EINVAL
}
if _, err := t.CopyIn(optLenAddr, &optLen); err != nil {
return 0, nil, err
}
if optLen < 0 {
return 0, nil, syserror.EINVAL
}
// Call syscall implementation then copy both value and value len out.
@ -465,11 +462,9 @@ func GetSockOpt(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sy
return 0, nil, e.ToError()
}
if optLenAddr != 0 {
vLen := int32(binary.Size(v))
if _, err := t.CopyOut(optLenAddr, vLen); err != nil {
return 0, nil, err
}
vLen := int32(binary.Size(v))
if _, err := t.CopyOut(optLenAddr, vLen); err != nil {
return 0, nil, err
}
if v != nil {