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2021-02-22Merge release-20210208.0-80-gc5a4e1000 (automated)gVisor bot
2021-02-22unix: sendmmsg and recvmsg have to cap a number of message to UIO_MAXIOVAndrei Vagin
Reported-by: syzbot+f2489ba0b999a45d1ad1@syzkaller.appspotmail.com PiperOrigin-RevId: 358866218
2021-02-20Merge release-20210208.0-78-g93fc09248 (automated)gVisor bot
2021-02-19Don't hold baseEndpoint.mu while calling EventUpdate().Nicolas Lacasse
This removes a three-lock deadlock between fdnotifier.notifier.mu, epoll.EventPoll.listsMu, and baseEndpoint.mu. A lock order comment was added to epoll/epoll.go. Also fix unsafe access of baseEndpoint.connected/receiver. PiperOrigin-RevId: 358515191
2021-02-19Merge release-20210208.0-76-g5e22ab93e (automated)gVisor bot
2021-02-19control.Proc.Exec should default to root pid namespace if none provided.Nicolas Lacasse
PiperOrigin-RevId: 358445320
2021-02-19Merge release-20210208.0-74-gec7f44f36 (automated)gVisor bot
2021-02-18Make socketops reflect correct sndbuf value for host UDS.Bhasker Hariharan
Also skips a test if the setsockopt to increase send buffer did not result in an increase. This is possible when the underlying socket is a host backed unix domain socket as in such cases gVisor does not permit increasing SO_SNDBUF. PiperOrigin-RevId: 358285158
2021-02-18Merge release-20210208.0-73-gf80a857a4 (automated)gVisor bot
2021-02-18Bump build constraints to Go 1.18Michael Pratt
These are bumped to allow early testing of Go 1.17. Use will be audited closer to the 1.17 release. PiperOrigin-RevId: 358278615
2021-02-18Merge release-20210208.0-71-g2a2cb29e1 (automated)gVisor bot
2021-02-18Validate IGMP packetsArthur Sfez
This change also adds support for Router Alert option processing on incoming packets, a new stat for Router Alert option, and exports all the IP-option related stats. Fixes #5491 PiperOrigin-RevId: 358238123
2021-02-18Merge release-20210208.0-65-g1fc2c5f75 (automated)gVisor bot
2021-02-17Move Name() out of netstack Matcher. It can live in the sentry.Kevin Krakauer
PiperOrigin-RevId: 358078157
2021-02-18Merge release-20210208.0-64-gf051ec646 (automated)gVisor bot
2021-02-17Add gohacks.Slice/StringHeader.Jamie Liu
See https://github.com/golang/go/issues/19367 for rationale. Note that the upstream decision arrived at in that thread, while useful for some of our use cases, doesn't account for all of our SliceHeader use cases (we often use SliceHeader to extract pointers from slices in a way that avoids bounds checking and/or handles nil slices correctly) and also doesn't exist yet. PiperOrigin-RevId: 358071574
2021-02-17Merge release-20210208.0-63-g4bc7daf91 (automated)gVisor bot
2021-02-17Check for directory emptiness in VFS1 overlay rmdir().Jamie Liu
Note that this CL reorders overlayEntry.copyMu before overlayEntry.dirCacheMu in the overlayFileOperations.IterateDir() => readdirEntries() path - but this lock ordering is already required by overlayRemove/Bind() => overlayEntry.markDirectoryDirty(), so this actually just fixes an inconsistency. PiperOrigin-RevId: 358047121
2021-02-12Merge release-20210208.0-52-g845d0a65f (automated)gVisor bot
2021-02-11[rack] TLP: ACK Processing and PTO scheduling.Ayush Ranjan
This change implements TLP details enumerated in https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.3 Fixes #5085 PiperOrigin-RevId: 357125037
2021-02-12Merge release-20210201.0-92-g34614c398 (automated)gVisor bot
2021-02-11Unconditionally check for directory-ness in overlay.filesystem.UnlinkAt().Jamie Liu
PiperOrigin-RevId: 357106080
2021-02-12Merge release-20210201.0-90-g4314bb0b2 (automated)gVisor bot
2021-02-11Internal change.gVisor bot
PiperOrigin-RevId: 357090170
2021-02-11Merge release-20210201.0-87-gc833eed80 (automated)gVisor bot
2021-02-11Implement semtimedop.Jing Chen
PiperOrigin-RevId: 357031904
2021-02-11Merge release-20210201.0-86-gae8d966f5 (automated)gVisor bot
2021-02-11Assign controlling terminal when tty is opened and support NOCTTYKevin Krakauer
PiperOrigin-RevId: 357015186
2021-02-11Merge release-20210201.0-84-g81ea0016e (automated)gVisor bot
2021-02-10Support setgid directories in tmpfs and kernfsKevin Krakauer
PiperOrigin-RevId: 356868412
2021-02-11Merge release-20210201.0-82-g97a36d169 (automated)gVisor bot
2021-02-10Don't allow to umount the namespace root mountAndrei Vagin
Linux does the same thing. Reported-by: syzbot+6c79385c930c929d1d9e@syzkaller.appspotmail.com PiperOrigin-RevId: 356854562
2021-02-10Merge release-20210201.0-75-gb9db7db3b (automated)gVisor bot
2021-02-10Merge pull request #5267 from lubinszARM:pr_usr_lazy_fpgVisor bot
PiperOrigin-RevId: 356762859
2021-02-10Merge release-20210201.0-72-g298c129cc (automated)gVisor bot
2021-02-09Add support for setting SO_SNDBUF for unix domain sockets.Bhasker Hariharan
The limits for snd/rcv buffers for unix domain socket is controlled by the following sysctls on linux - net.core.rmem_default - net.core.rmem_max - net.core.wmem_default - net.core.wmem_max Today in gVisor we do not expose these sysctls but we do support setting the equivalent in netstack via stack.Options() method. But AF_UNIX sockets in gVisor can be used without netstack, with hostinet or even without any networking stack at all. Which means ideally these sysctls need to live as globals in gVisor. But rather than make this a big change for now we hardcode the limits in the AF_UNIX implementation itself (which in itself is better than where we were before) where it SO_SNDBUF was hardcoded to 16KiB. Further we bump the initial limit to a default value of 208 KiB to match linux from the paltry 16 KiB we use today. Updates #5132 PiperOrigin-RevId: 356665498
2021-02-10Merge release-20210201.0-70-gf6de413c3 (automated)gVisor bot
2021-02-09Add cleanup TODO for integer-based proc files.Dean Deng
PiperOrigin-RevId: 356645022
2021-02-09Merge release-20210201.0-65-g2b978d874 (automated)gVisor bot
2021-02-09Collapse code that always returns errorTamir Duberstein
PiperOrigin-RevId: 356536548
2021-02-09Merge release-20210201.0-64-gfe4f47896 (automated)gVisor bot
2021-02-09kernel: reparentLocked has to update children maps of old and new parentsAndrei Vagin
Reported-by: syzbot+9ffc71246fe72c73fc25@syzkaller.appspotmail.com PiperOrigin-RevId: 356536113
2021-02-09Merge release-20210201.0-63-gd6dbe6e5c (automated)gVisor bot
2021-02-09pipe: writeLocked has to return ErrWouldBlock if the pipe is fullAndrei Vagin
PiperOrigin-RevId: 356450303
2021-02-09Merge release-20210201.0-59-gbf4968e17 (automated)gVisor bot
2021-02-08exec: don't panic if an elf file is malformedAndrei Vagin
Reported-by: syzbot+d54bc27a15aefe52c330@syzkaller.appspotmail.com PiperOrigin-RevId: 356406975
2021-02-09Merge release-20210201.0-56-ge51f775cb (automated)gVisor bot
2021-02-08[go-marshal] Remove binary package reference from syscalls package.Ayush Ranjan
Fixes a bug in our getsockopt(2) implementation which was incorrectly using binary.Size() instead of Marshallable.SizeBytes(). PiperOrigin-RevId: 356396551
2021-02-06Merge release-20210125.0-89-g120c8e346 (automated)gVisor bot
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
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