Bump runc to 1b8a1eeec3f337ab5d94f28980

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2019-10-03 10:36:35 -04:00
parent 309c9c25ba
commit f277665edb
10 changed files with 289 additions and 5 deletions

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@ -20,7 +20,7 @@ github.com/gogo/protobuf v1.2.1
github.com/gogo/googleapis v1.2.0 github.com/gogo/googleapis v1.2.0
github.com/golang/protobuf v1.2.0 github.com/golang/protobuf v1.2.0
github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4 # v1.0.1-59-g29686db github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4 # v1.0.1-59-g29686db
github.com/opencontainers/runc 3e425f80a8c931f88e6d94a8c831b9d5aa481657 # v1.0.0-rc8+ CVE-2019-16884 github.com/opencontainers/runc 1b8a1eeec3f337ab5d94f289800b30835f2e5453 # v1.0.0-rc8+ CVE-2019-16884
github.com/konsorten/go-windows-terminal-sequences v1.0.1 github.com/konsorten/go-windows-terminal-sequences v1.0.1
github.com/sirupsen/logrus v1.4.1 github.com/sirupsen/logrus v1.4.1
github.com/urfave/cli v1.22.0 github.com/urfave/cli v1.22.0

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@ -18,7 +18,7 @@ You can find official releases of `runc` on the [release](https://github.com/ope
## Security ## Security
Reporting process and disclosure communications are outlined in [/org/security](https://github.com/opencontainers/org/blob/master/security/) The reporting process and disclosure communications are outlined in [/org/security](https://github.com/opencontainers/org/blob/master/security/).
## Building ## Building

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@ -6,6 +6,8 @@ import (
"fmt" "fmt"
"io/ioutil" "io/ioutil"
"os" "os"
"github.com/opencontainers/runc/libcontainer/utils"
) )
// IsEnabled returns true if apparmor is enabled for the host. // IsEnabled returns true if apparmor is enabled for the host.
@ -19,7 +21,7 @@ func IsEnabled() bool {
return false return false
} }
func setprocattr(attr, value string) error { func setProcAttr(attr, value string) error {
// Under AppArmor you can only change your own attr, so use /proc/self/ // Under AppArmor you can only change your own attr, so use /proc/self/
// instead of /proc/<tid>/ like libapparmor does // instead of /proc/<tid>/ like libapparmor does
path := fmt.Sprintf("/proc/self/attr/%s", attr) path := fmt.Sprintf("/proc/self/attr/%s", attr)
@ -30,6 +32,10 @@ func setprocattr(attr, value string) error {
} }
defer f.Close() defer f.Close()
if err := utils.EnsureProcHandle(f); err != nil {
return err
}
_, err = fmt.Fprintf(f, "%s", value) _, err = fmt.Fprintf(f, "%s", value)
return err return err
} }
@ -37,7 +43,7 @@ func setprocattr(attr, value string) error {
// changeOnExec reimplements aa_change_onexec from libapparmor in Go // changeOnExec reimplements aa_change_onexec from libapparmor in Go
func changeOnExec(name string) error { func changeOnExec(name string) error {
value := "exec " + name value := "exec " + name
if err := setprocattr("exec", value); err != nil { if err := setProcAttr("exec", value); err != nil {
return fmt.Errorf("apparmor failed to apply profile: %s", err) return fmt.Errorf("apparmor failed to apply profile: %s", err)
} }
return nil return nil

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@ -44,6 +44,7 @@ const (
Trap Trap
Allow Allow
Trace Trace
Log
) )
// Operator is a comparison operator to be used when matching syscall arguments in Seccomp // Operator is a comparison operator to be used when matching syscall arguments in Seccomp

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@ -22,6 +22,7 @@ var actions = map[string]configs.Action{
"SCMP_ACT_TRAP": configs.Trap, "SCMP_ACT_TRAP": configs.Trap,
"SCMP_ACT_ALLOW": configs.Allow, "SCMP_ACT_ALLOW": configs.Allow,
"SCMP_ACT_TRACE": configs.Trace, "SCMP_ACT_TRACE": configs.Trace,
"SCMP_ACT_LOG": configs.Log,
} }
var archs = map[string]string{ var archs = map[string]string{

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@ -19,6 +19,7 @@ var (
actTrap = libseccomp.ActTrap actTrap = libseccomp.ActTrap
actKill = libseccomp.ActKill actKill = libseccomp.ActKill
actTrace = libseccomp.ActTrace.SetReturnCode(int16(unix.EPERM)) actTrace = libseccomp.ActTrace.SetReturnCode(int16(unix.EPERM))
actLog = libseccomp.ActLog
actErrno = libseccomp.ActErrno.SetReturnCode(int16(unix.EPERM)) actErrno = libseccomp.ActErrno.SetReturnCode(int16(unix.EPERM))
) )
@ -112,6 +113,8 @@ func getAction(act configs.Action) (libseccomp.ScmpAction, error) {
return actAllow, nil return actAllow, nil
case configs.Trace: case configs.Trace:
return actTrace, nil return actTrace, nil
case configs.Log:
return actLog, nil
default: default:
return libseccomp.ActInvalid, fmt.Errorf("invalid action, cannot use in rule") return libseccomp.ActInvalid, fmt.Errorf("invalid action, cannot use in rule")
} }

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@ -0,0 +1,93 @@
// +build linux
package utils
/*
* Copyright 2016, 2017 SUSE LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import (
"fmt"
"os"
"golang.org/x/sys/unix"
)
// MaxSendfdLen is the maximum length of the name of a file descriptor being
// sent using SendFd. The name of the file handle returned by RecvFd will never
// be larger than this value.
const MaxNameLen = 4096
// oobSpace is the size of the oob slice required to store a single FD. Note
// that unix.UnixRights appears to make the assumption that fd is always int32,
// so sizeof(fd) = 4.
var oobSpace = unix.CmsgSpace(4)
// RecvFd waits for a file descriptor to be sent over the given AF_UNIX
// socket. The file name of the remote file descriptor will be recreated
// locally (it is sent as non-auxiliary data in the same payload).
func RecvFd(socket *os.File) (*os.File, error) {
// For some reason, unix.Recvmsg uses the length rather than the capacity
// when passing the msg_controllen and other attributes to recvmsg. So we
// have to actually set the length.
name := make([]byte, MaxNameLen)
oob := make([]byte, oobSpace)
sockfd := socket.Fd()
n, oobn, _, _, err := unix.Recvmsg(int(sockfd), name, oob, 0)
if err != nil {
return nil, err
}
if n >= MaxNameLen || oobn != oobSpace {
return nil, fmt.Errorf("recvfd: incorrect number of bytes read (n=%d oobn=%d)", n, oobn)
}
// Truncate.
name = name[:n]
oob = oob[:oobn]
scms, err := unix.ParseSocketControlMessage(oob)
if err != nil {
return nil, err
}
if len(scms) != 1 {
return nil, fmt.Errorf("recvfd: number of SCMs is not 1: %d", len(scms))
}
scm := scms[0]
fds, err := unix.ParseUnixRights(&scm)
if err != nil {
return nil, err
}
if len(fds) != 1 {
return nil, fmt.Errorf("recvfd: number of fds is not 1: %d", len(fds))
}
fd := uintptr(fds[0])
return os.NewFile(fd, string(name)), nil
}
// SendFd sends a file descriptor over the given AF_UNIX socket. In
// addition, the file.Name() of the given file will also be sent as
// non-auxiliary data in the same payload (allowing to send contextual
// information for a file descriptor).
func SendFd(socket *os.File, name string, fd uintptr) error {
if len(name) >= MaxNameLen {
return fmt.Errorf("sendfd: filename too long: %s", name)
}
oob := unix.UnixRights(int(fd))
return unix.Sendmsg(int(socket.Fd()), []byte(name), oob, nil, 0)
}

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@ -0,0 +1,112 @@
package utils
import (
"encoding/json"
"io"
"os"
"path/filepath"
"strings"
"unsafe"
"golang.org/x/sys/unix"
)
const (
exitSignalOffset = 128
)
// ResolveRootfs ensures that the current working directory is
// not a symlink and returns the absolute path to the rootfs
func ResolveRootfs(uncleanRootfs string) (string, error) {
rootfs, err := filepath.Abs(uncleanRootfs)
if err != nil {
return "", err
}
return filepath.EvalSymlinks(rootfs)
}
// ExitStatus returns the correct exit status for a process based on if it
// was signaled or exited cleanly
func ExitStatus(status unix.WaitStatus) int {
if status.Signaled() {
return exitSignalOffset + int(status.Signal())
}
return status.ExitStatus()
}
// WriteJSON writes the provided struct v to w using standard json marshaling
func WriteJSON(w io.Writer, v interface{}) error {
data, err := json.Marshal(v)
if err != nil {
return err
}
_, err = w.Write(data)
return err
}
// CleanPath makes a path safe for use with filepath.Join. This is done by not
// only cleaning the path, but also (if the path is relative) adding a leading
// '/' and cleaning it (then removing the leading '/'). This ensures that a
// path resulting from prepending another path will always resolve to lexically
// be a subdirectory of the prefixed path. This is all done lexically, so paths
// that include symlinks won't be safe as a result of using CleanPath.
func CleanPath(path string) string {
// Deal with empty strings nicely.
if path == "" {
return ""
}
// Ensure that all paths are cleaned (especially problematic ones like
// "/../../../../../" which can cause lots of issues).
path = filepath.Clean(path)
// If the path isn't absolute, we need to do more processing to fix paths
// such as "../../../../<etc>/some/path". We also shouldn't convert absolute
// paths to relative ones.
if !filepath.IsAbs(path) {
path = filepath.Clean(string(os.PathSeparator) + path)
// This can't fail, as (by definition) all paths are relative to root.
path, _ = filepath.Rel(string(os.PathSeparator), path)
}
// Clean the path again for good measure.
return filepath.Clean(path)
}
// SearchLabels searches a list of key-value pairs for the provided key and
// returns the corresponding value. The pairs must be separated with '='.
func SearchLabels(labels []string, query string) string {
for _, l := range labels {
parts := strings.SplitN(l, "=", 2)
if len(parts) < 2 {
continue
}
if parts[0] == query {
return parts[1]
}
}
return ""
}
// Annotations returns the bundle path and user defined annotations from the
// libcontainer state. We need to remove the bundle because that is a label
// added by libcontainer.
func Annotations(labels []string) (bundle string, userAnnotations map[string]string) {
userAnnotations = make(map[string]string)
for _, l := range labels {
parts := strings.SplitN(l, "=", 2)
if len(parts) < 2 {
continue
}
if parts[0] == "bundle" {
bundle = parts[1]
} else {
userAnnotations[parts[0]] = parts[1]
}
}
return
}
func GetIntSize() int {
return int(unsafe.Sizeof(1))
}

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@ -0,0 +1,68 @@
// +build !windows
package utils
import (
"fmt"
"os"
"strconv"
"golang.org/x/sys/unix"
)
// EnsureProcHandle returns whether or not the given file handle is on procfs.
func EnsureProcHandle(fh *os.File) error {
var buf unix.Statfs_t
if err := unix.Fstatfs(int(fh.Fd()), &buf); err != nil {
return fmt.Errorf("ensure %s is on procfs: %v", fh.Name(), err)
}
if buf.Type != unix.PROC_SUPER_MAGIC {
return fmt.Errorf("%s is not on procfs", fh.Name())
}
return nil
}
// CloseExecFrom applies O_CLOEXEC to all file descriptors currently open for
// the process (except for those below the given fd value).
func CloseExecFrom(minFd int) error {
fdDir, err := os.Open("/proc/self/fd")
if err != nil {
return err
}
defer fdDir.Close()
if err := EnsureProcHandle(fdDir); err != nil {
return err
}
fdList, err := fdDir.Readdirnames(-1)
if err != nil {
return err
}
for _, fdStr := range fdList {
fd, err := strconv.Atoi(fdStr)
// Ignore non-numeric file names.
if err != nil {
continue
}
// Ignore descriptors lower than our specified minimum.
if fd < minFd {
continue
}
// Intentionally ignore errors from unix.CloseOnExec -- the cases where
// this might fail are basically file descriptors that have already
// been closed (including and especially the one that was created when
// ioutil.ReadDir did the "opendir" syscall).
unix.CloseOnExec(fd)
}
return nil
}
// NewSockPair returns a new unix socket pair
func NewSockPair(name string) (parent *os.File, child *os.File, err error) {
fds, err := unix.Socketpair(unix.AF_LOCAL, unix.SOCK_STREAM|unix.SOCK_CLOEXEC, 0)
if err != nil {
return nil, nil, err
}
return os.NewFile(uintptr(fds[1]), name+"-p"), os.NewFile(uintptr(fds[0]), name+"-c"), nil
}

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@ -6,7 +6,7 @@ github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4
# Core libcontainer functionality. # Core libcontainer functionality.
github.com/checkpoint-restore/go-criu 17b0214f6c48980c45dc47ecb0cfd6d9e02df723 # v3.11 github.com/checkpoint-restore/go-criu 17b0214f6c48980c45dc47ecb0cfd6d9e02df723 # v3.11
github.com/mrunalp/fileutils 7d4729fb36185a7c1719923406c9d40e54fb93c7 github.com/mrunalp/fileutils 7d4729fb36185a7c1719923406c9d40e54fb93c7
github.com/opencontainers/selinux 3a1f366feb7aecbf7a0e71ac4cea88b31597de9e # v1.2.2 github.com/opencontainers/selinux 5215b1806f52b1fcc2070a8826c542c9d33cd3cf # v1.3.0 (+ CVE-2019-16884)
github.com/seccomp/libseccomp-golang 689e3c1541a84461afc49c1c87352a6cedf72e9c # v0.9.1 github.com/seccomp/libseccomp-golang 689e3c1541a84461afc49c1c87352a6cedf72e9c # v0.9.1
github.com/sirupsen/logrus 8bdbc7bcc01dcbb8ec23dc8a28e332258d25251f # v1.4.1 github.com/sirupsen/logrus 8bdbc7bcc01dcbb8ec23dc8a28e332258d25251f # v1.4.1
github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2 github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2