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2021-03-18Merge release-20210309.0-39-g5c4f4ed9e (automated)gVisor bot
2021-03-18Skip /dev submount hack on VFS2.Jamie Liu
containerd usually configures both /dev and /dev/shm as tmpfs mounts, e.g.: ``` "mounts": [ ... { "destination": "/dev", "type": "tmpfs", "source": "/run/containerd/io.containerd.runtime.v2.task/moby/10eedbd6a0e7937ddfcab90f2c25bd9a9968b734c4ae361318142165d445e67e/tmpfs", "options": [ "nosuid", "strictatime", "mode=755", "size=65536k" ] }, ... { "destination": "/dev/shm", "type": "tmpfs", "source": "/run/containerd/io.containerd.runtime.v2.task/moby/10eedbd6a0e7937ddfcab90f2c25bd9a9968b734c4ae361318142165d445e67e/shm", "options": [ "nosuid", "noexec", "nodev", "mode=1777", "size=67108864" ] }, ... ``` (This is mostly consistent with how Linux is usually configured, except that /dev is conventionally devtmpfs, not regular tmpfs. runc/libcontainer implements OCI-runtime-spec-undocumented behavior to create /dev/{ptmx,fd,stdin,stdout,stderr} in non-bind /dev mounts. runsc silently switches /dev to devtmpfs. In VFS1, this is necessary to get device files like /dev/null at all, since VFS1 doesn't support real device special files, only what is hardcoded in devfs. VFS2 does support device special files, but using devtmpfs is the easiest way to get pre-created files in /dev.) runsc ignores many /dev submounts in the spec, including /dev/shm. In VFS1, this appears to be to avoid introducing a submount overlay for /dev, and is mostly fine since the typical mode for the /dev/shm mount is ~consistent with the mode of the /dev/shm directory provided by devfs (modulo the sticky bit). In VFS2, this is vestigial (VFS2 does not use submount overlays), and devtmpfs' /dev/shm mode is correct for the mount point but not the mount. So turn off this behavior for VFS2. After this change: ``` $ docker run --rm -it ubuntu:focal ls -lah /dev/shm total 0 drwxrwxrwt 2 root root 40 Mar 18 00:16 . drwxr-xr-x 5 root root 360 Mar 18 00:16 .. $ docker run --runtime=runsc --rm -it ubuntu:focal ls -lah /dev/shm total 0 drwxrwxrwx 1 root root 0 Mar 18 00:16 . dr-xr-xr-x 1 root root 0 Mar 18 00:16 .. $ docker run --runtime=runsc-vfs2 --rm -it ubuntu:focal ls -lah /dev/shm total 0 drwxrwxrwt 2 root root 40 Mar 18 00:16 . drwxr-xr-x 5 root root 320 Mar 18 00:16 .. ``` Fixes #5687 PiperOrigin-RevId: 363699385
2021-03-12Merge release-20210301.0-37-gc5667022b (automated)gVisor bot
2021-03-11Report filesystem-specific mount options.Rahat Mahmood
PiperOrigin-RevId: 362406813
2021-03-11Major refactor of runsc mitigate.Zach Koopmans
PiperOrigin-RevId: 362360425
2021-03-10Merge release-20210301.0-33-g14fc2ddd6 (automated)gVisor bot
2021-03-09Update flock to v0.8.0Fabricio Voznika
PiperOrigin-RevId: 361962416
2021-03-10Merge release-20210301.0-32-ge0e04814b (automated)gVisor bot
2021-03-09Fix invalid interface conversion in runnerFabricio Voznika
panic: interface conversion: interface {} is syscall.WaitStatus, not unix.WaitStatus goroutine 1 [running]: main.runTestCaseNative(0xc0001fc000, 0xe3, 0xc000119b60, 0x1, 0x1, 0x0, 0x0) test/runner/runner.go:185 +0xa94 main.main() test/runner/runner.go:118 +0x745 PiperOrigin-RevId: 361957796
2021-03-09Merge release-20210301.0-27-g8018bf62b (automated)gVisor bot
2021-03-08Internal change.Chong Cai
PiperOrigin-RevId: 361689477
2021-03-07Merge release-20210301.0-22-ge668288fa (automated)gVisor bot
2021-03-06[op] Replace syscall package usage with golang.org/x/sys/unix in runsc/.Ayush Ranjan
The syscall package has been deprecated in favor of golang.org/x/sys. Note that syscall is still used in some places because the following don't seem to have an equivalent in unix package: - syscall.SysProcIDMap - syscall.Credential Updates #214 PiperOrigin-RevId: 361381490
2021-03-02Merge release-20210208.0-109-gb8a5420f4 (automated)gVisor bot
2021-03-02Add reverse flag to mitigate.Zach Koopmans
Add reverse operation to mitigate that just enables all CPUs. PiperOrigin-RevId: 360511215
2021-02-24Merge pull request #5519 from dqminh:runsc-ps-pidsgVisor bot
PiperOrigin-RevId: 359334029
2021-02-24Merge release-20210208.0-86-g055073f11 (automated)gVisor bot
2021-02-24runsc/filters: permit clock_nanosleep for raceAndrei Vagin
Syzkaller hosts contains many audit messages that runsc tries to call the clock_nanosleep syscall. PiperOrigin-RevId: 359331413
2021-02-24return root pids with runsc psDaniel Dao
`runsc ps` currently return pid for a task's immediate pid namespace, which is confusing when there're multiple pid namespaces. We should return only pids in the root namespace. Before: ``` 1000 1 0 0 ? 02:24 250ms chrome 1000 1 0 0 ? 02:24 40ms dumb-init 1000 1 0 0 ? 02:24 240ms chrome 1000 2 1 0 ? 02:24 2.78s node ``` After: ``` UID PID PPID C TTY STIME TIME CMD 1000 1 0 0 ? 12:35 0s dumb-init 1000 2 1 7 ? 12:35 240ms node 1000 13 2 21 ? 12:35 2.33s chrome 1000 27 13 3 ? 12:35 260ms chrome ``` Signed-off-by: Daniel Dao <dqminh@cloudflare.com>
2021-02-23Merge release-20210208.0-83-g24ea8003a (automated)gVisor bot
2021-02-22Only detect mds for mitigate.Zach Koopmans
Only detect and mitigate on mds for the mitigate command. PiperOrigin-RevId: 358924466
2021-02-23Merge release-20210208.0-82-g34e2cda9a (automated)gVisor bot
2021-02-22Return nicer error message when cgroups v1 isn't availableFabricio Voznika
Updates #3481 Closes #5430 PiperOrigin-RevId: 358923208
2021-02-22Merge release-20210208.0-79-g19fe3a2bf (automated)gVisor bot
2021-02-22Fix `runsc kill --pid`Fabricio Voznika
Previously, loader.signalProcess was inconsitently using both root and container's PID namespace to find the process. It used root namespace for the exec'd process and container's PID namespace for other processes. This fixes the code to use the root PID namespace across the board, which is the same PID reported in `runsc ps` (or soon will after https://github.com/google/gvisor/pull/5519). PiperOrigin-RevId: 358836297
2021-02-13Merge release-20210208.0-58-g3ef012944 (automated)gVisor bot
2021-02-12Stop the control server only once.Adin Scannell
Operations are now shut down automatically by the main Stop command, and it is not necessary to call Stop during Destroy. Fixes #5454 PiperOrigin-RevId: 357295930
2021-02-11Merge release-20210201.0-85-g192780946 (automated)gVisor bot
2021-02-11Allow rt_sigaction in gofer seccompFabricio Voznika
rt_sigaction may be called by Go runtime when trying to panic: https://cs.opensource.google/go/go/+/master:src/runtime/signal_unix.go;drc=ed3e4afa12d655a0c5606bcf3dd4e1cdadcb1476;bpv=1;bpt=1;l=780?q=rt_sigaction&ss=go Updates #5038 PiperOrigin-RevId: 357013186
2021-02-10Merge release-20210201.0-76-g1ac58cc23 (automated)gVisor bot
2021-02-10Add mitigate command to runscZach Koopmans
PiperOrigin-RevId: 356772367
2021-02-05Replace TaskFromContext(ctx).Kernel() with KernelFromContext(ctx)Ting-Yu Wang
Panic seen at some code path like control.ExecAsync where ctx does not have a Task. Reported-by: syzbot+55ce727161cf94a7b7d6@syzkaller.appspotmail.com PiperOrigin-RevId: 355960596
2021-02-04Merge release-20210125.0-84-g41510d274 (automated)gVisor bot
2021-02-04Move getcpu() to core filter listMichael Pratt
Some versions of the Go runtime call getcpu(), so add it for compatibility. The hostcpu package already uses getcpu() on arm64. PiperOrigin-RevId: 355717757
2021-02-02Add CPUSet for runsc mitigate.Zach Koopmans
PiperOrigin-RevId: 355242055
2021-02-02Merge release-20210125.0-62-g5f7bf3152 (automated)gVisor bot
2021-02-02Stub out basic `runsc events --stat` CPU functionalityKevin Krakauer
Because we lack gVisor-internal cgroups, we take the CPU usage of the entire pod and divide it proportionally according to sentry-internal usage stats. This fixes `kubectl top pods`, which gets a pod's CPU usage by summing the usage of its containers. Addresses #172. PiperOrigin-RevId: 355229833
2021-02-01Enable container checkpoint/restore tests with VFS2Fabricio Voznika
Updates #1663 PiperOrigin-RevId: 355077816
2021-01-29Merge release-20210125.0-29-g25284ae3c (automated)gVisor bot
2021-01-29Merge pull request #4503 from dqminh:nested-cgroupgVisor bot
PiperOrigin-RevId: 354568091
2021-01-27Internal changeZach Koopmans
PiperOrigin-RevId: 354170726
2021-01-27Clean cgroupt mountinfo and add more test casesDaniel Dao
Signed-off-by: Daniel Dao <dqminh89@gmail.com>
2021-01-26runsc: check for nested cgroup when generating croup pathsDaniel Dao
in nested container, we see paths from host in /proc/self/cgroup, so we need to re-process that path to get a relative path to be used inside the container. Without it, runsc generates ugly paths that may trip other cgroup watchers that expect clean paths. An example of ugly path is: ``` /sys/fs/cgroup/memory/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93/cgroupPath ``` Notice duplication of `docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93` `/proc/1/cgroup` looks like ``` 12:perf_event:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 11:blkio:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 10:freezer:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 9:hugetlb:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 8:devices:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 7:rdma:/ 6:pids:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 5:cpuset:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 4:cpu,cpuacct:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 3:memory:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 2:net_cls,net_prio:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 1:name=systemd:/docker/e383892b29290ae8005d535f2dadc4a583bb354d5bb1ba8c10bf900d92c4db93 0::/system.slice/containerd.service ``` This is not necessary when the parent container was created with cgroup namespace, but that setup is not very common right now. Signed-off-by: Daniel Dao <dqminh89@gmail.com>
2021-01-22Merge release-20210112.0-70-g9b4f4655e (automated)gVisor bot
2021-01-22Add initial mitigate code and cpu parsing.Zach Koopmans
PiperOrigin-RevId: 353274135
2021-01-22Remove dependency to abi/linuxFabricio Voznika
abi package is to be used by the Sentry to implement the Linux ABI. Code dealing with the host should use x/sys/unix. PiperOrigin-RevId: 353272679
2021-01-22Fix TestDuplicateEnvVariable flakynessFabricio Voznika
Updates #5226 PiperOrigin-RevId: 353262133
2021-01-22Merge release-20210112.0-61-g7bf656f4c (automated)gVisor bot
2021-01-21Fix ownership change logicFabricio Voznika
Previously fsgofer was skipping chown call if the uid and gid were the same as the current user/group. However, when setgid is set, the group may not be the same as the caller. Instead, compare the actual uid/gid of the file after it has been created and change ownership only if needed. Updates #180 PiperOrigin-RevId: 353118733
2021-01-13Merge release-20201216.0-104-g1efe0ebc5 (automated)gVisor bot
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 13:25:36 +0000