commit: d8fb9aaaf78dc8cad22d3e8954bfc4087095bc8b Author: Michael Mair-Keimberger <m.mairkeimberger <AT> gmail <DOT> com> AuthorDate: Fri Feb 16 07:51:42 2018 +0000 Commit: Patrice Clement <monsieurp <AT> gentoo <DOT> org> CommitDate: Sat Feb 17 14:26:07 2018 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d8fb9aaa
app-emulation/runc: remove unused patch. Closes: https://github.com/gentoo/gentoo/pull/7201 .../files/runc-1.0.0_rc2-init-non-dumpable.patch | 108 --------------------- 1 file changed, 108 deletions(-) diff --git a/app-emulation/runc/files/runc-1.0.0_rc2-init-non-dumpable.patch b/app-emulation/runc/files/runc-1.0.0_rc2-init-non-dumpable.patch deleted file mode 100644 index 486835ad826..00000000000 --- a/app-emulation/runc/files/runc-1.0.0_rc2-init-non-dumpable.patch +++ /dev/null @@ -1,108 +0,0 @@ -From 50a19c6ff828c58e5dab13830bd3dacde268afe5 Mon Sep 17 00:00:00 2001 -From: Michael Crosby <crosbymich...@gmail.com> -Date: Wed, 7 Dec 2016 15:05:51 -0800 -Subject: [PATCH] Set init processes as non-dumpable - -This sets the init processes that join and setup the container's -namespaces as non-dumpable before they setns to the container's pid (or -any other ) namespace. - -This settings is automatically reset to the default after the Exec in -the container so that it does not change functionality for the -applications that are running inside, just our init processes. - -This prevents parent processes, the pid 1 of the container, to ptrace -the init process before it drops caps and other sets LSMs. - -This patch also ensures that the stateDirFD being used is still closed -prior to exec, even though it is set as O_CLOEXEC, because of the order -in the kernel. - -https://github.com/torvalds/linux/blob/v4.9/fs/exec.c#L1290-L1318 - -The order during the exec syscall is that the process is set back to -dumpable before O_CLOEXEC are processed. - -Signed-off-by: Michael Crosby <crosbymich...@gmail.com> ---- - libcontainer/init_linux.go | 3 ++- - libcontainer/nsenter/nsexec.c | 5 +++++ - libcontainer/setns_init_linux.go | 7 ++++++- - libcontainer/standard_init_linux.go | 3 +++ - 4 files changed, 16 insertions(+), 2 deletions(-) - -diff --git a/libcontainer/init_linux.go b/libcontainer/init_linux.go -index b1e6762..4043d51 100644 ---- a/libcontainer/init_linux.go -+++ b/libcontainer/init_linux.go -@@ -77,7 +77,8 @@ func newContainerInit(t initType, pipe *os.File, stateDirFD int) (initer, error) - switch t { - case initSetns: - return &linuxSetnsInit{ -- config: config, -+ config: config, -+ stateDirFD: stateDirFD, - }, nil - case initStandard: - return &linuxStandardInit{ -diff --git a/libcontainer/nsenter/nsexec.c b/libcontainer/nsenter/nsexec.c -index b93f827..4b5398b 100644 ---- a/libcontainer/nsenter/nsexec.c -+++ b/libcontainer/nsenter/nsexec.c -@@ -408,6 +408,11 @@ void nsexec(void) - if (pipenum == -1) - return; - -+ /* make the process non-dumpable */ -+ if (prctl(PR_SET_DUMPABLE, 0, 0, 0, 0) != 0) { -+ bail("failed to set process as non-dumpable"); -+ } -+ - /* Parse all of the netlink configuration. */ - nl_parse(pipenum, &config); - -diff --git a/libcontainer/setns_init_linux.go b/libcontainer/setns_init_linux.go -index 2a8f345..7f5f182 100644 ---- a/libcontainer/setns_init_linux.go -+++ b/libcontainer/setns_init_linux.go -@@ -5,6 +5,7 @@ package libcontainer - import ( - "fmt" - "os" -+ "syscall" - - "github.com/opencontainers/runc/libcontainer/apparmor" - "github.com/opencontainers/runc/libcontainer/keys" -@@ -16,7 +17,8 @@ import ( - // linuxSetnsInit performs the container's initialization for running a new process - // inside an existing container. - type linuxSetnsInit struct { -- config *initConfig -+ config *initConfig -+ stateDirFD int - } - - func (l *linuxSetnsInit) getSessionRingName() string { -@@ -49,5 +51,8 @@ func (l *linuxSetnsInit) Init() error { - if err := label.SetProcessLabel(l.config.ProcessLabel); err != nil { - return err - } -+ // close the statedir fd before exec because the kernel resets dumpable in the wrong order -+ // https://github.com/torvalds/linux/blob/v4.9/fs/exec.c#L1290-L1318 -+ syscall.Close(l.stateDirFD) - return system.Execv(l.config.Args[0], l.config.Args[0:], os.Environ()) - } -diff --git a/libcontainer/standard_init_linux.go b/libcontainer/standard_init_linux.go -index 2104f1a..6a65154 100644 ---- a/libcontainer/standard_init_linux.go -+++ b/libcontainer/standard_init_linux.go -@@ -171,6 +171,9 @@ func (l *linuxStandardInit) Init() error { - return newSystemErrorWithCause(err, "init seccomp") - } - } -+ // close the statedir fd before exec because the kernel resets dumpable in the wrong order -+ // https://github.com/torvalds/linux/blob/v4.9/fs/exec.c#L1290-L1318 -+ syscall.Close(l.stateDirFD) - if err := syscall.Exec(name, l.config.Args[0:], os.Environ()); err != nil { - return newSystemErrorWithCause(err, "exec user process") - }
