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2020-03-10Merge release-20200219.0-131-gb36de6e (automated)gVisor bot
2020-03-09Move /proc/net to /proc/PID/net, and make /proc/net -> /proc/self/net.Ting-Yu Wang
Issue #1833 PiperOrigin-RevId: 299998105
2020-03-06Merge release-20200219.0-124-g228813f (automated)gVisor bot
2020-03-06Update comments and debug level for profiling options.Dean Deng
PiperOrigin-RevId: 299448307
2020-03-06Merge release-20200219.0-123-g960f6a9 (automated)gVisor bot
2020-03-06Add plumbing for importing fds in VFS2, along with non-socket, non-TTY impl.Dean Deng
In VFS2, imported file descriptors are stored in a kernfs-based filesystem. Upon calling ImportFD, the host fd can be accessed in two ways: 1. a FileDescription that can be added to the FDTable, and 2. a Dentry in the host.filesystem mount, which we will want to access through magic symlinks in /proc/[pid]/fd/. An implementation of the kernfs.Inode interface stores a unique host fd. This inode can be inserted into file descriptions as well as dentries. This change also plumbs in three FileDescriptionImpls corresponding to fds for sockets, TTYs, and other files (only the latter is implemented here). These implementations will mostly make corresponding syscalls to the host. Where possible, the logic is ported over from pkg/sentry/fs/host. Updates #1672 PiperOrigin-RevId: 299417263
2020-03-06Merge release-20200219.0-122-g6fa5cee (automated)gVisor bot
2020-03-06Prevent memory leaks in ilistTamir Duberstein
When list elements are removed from a list but not discarded, it becomes important to invalidate the references they hold to their former neighbors to prevent memory leaks. PiperOrigin-RevId: 299412421
2020-03-06Merge release-20200219.0-121-g18d41cf (automated)gVisor bot
2020-03-06Merge pull request #1963 from xiaobo55x:kvm_commongVisor bot
PiperOrigin-RevId: 299405855
2020-03-06Merge release-20200219.0-119-g56c4272 (automated)gVisor bot
2020-03-06Merge pull request #1946 from xiaobo55x:dieTrampgVisor bot
PiperOrigin-RevId: 299405663
2020-03-06Merge release-20200219.0-117-gd5dbe36 (automated)gVisor bot
2020-03-06shutdown(s, SHUT_WR) in TIME-WAIT returns ENOTCONNEyal Soha
From RFC 793 s3.9 p61 Event Processing: CLOSE Call during TIME-WAIT: return with "error: connection closing" Fixes #1603 PiperOrigin-RevId: 299401353
2020-03-06Merge release-20200219.0-116-gf50d9a3 (automated)gVisor bot
2020-03-06Specify the source of outgoing NDP RSGhanan Gowripalan
If the NIC has a valid IPv6 address assigned, use it as the source address for outgoing NDP Router Solicitation packets. Test: stack_test.TestRouterSolicitation PiperOrigin-RevId: 299398763
2020-03-06Merge release-20200219.0-112-gd6f5e71 (automated)gVisor bot
2020-03-06Get strings for stack.DHCPv6ConfigurationFromNDPRAGhanan Gowripalan
Useful for logs to print the string representation of the value instead of the integer value. PiperOrigin-RevId: 299356847
2020-03-06Merge release-20200219.0-111-gda48fc6 (automated)gVisor bot
2020-03-05Stub oom_score_adj and oom_score.Ian Lewis
Adds an oom_score_adj and oom_score proc file stub. oom_score_adj accepts writes of values -1000 to 1000 and persists the value with the task. New tasks inherit the parent's oom_score_adj. oom_score is a read-only stub that always returns the value '0'. Issue #202 PiperOrigin-RevId: 299245355
2020-03-06Merge release-20200219.0-110-g9b64b65 (automated)gVisor bot
2020-03-05Fix S/R on inet.Namespace.Ting-Yu Wang
PiperOrigin-RevId: 299238067
2020-03-06Merge release-20200219.0-109-g6367963 (automated)gVisor bot
2020-03-05Merge pull request #1951 from moricho:moricho/add-profiler-optiongVisor bot
PiperOrigin-RevId: 299233818
2020-03-05Merge release-20200219.0-107-g9b3aad3 (automated)gVisor bot
2020-03-05Use a pool of arrays to avoid slice headers from escaping in TCP options pool.Ian Gudger
By putting slices into the pool, the slice header escapes. This can be avoided by not putting the slice header into the pool. This removes an allocation from the TCP segment send path. PiperOrigin-RevId: 299215480
2020-03-04tests: Don't print log messages on stdoutAndrei Vagin
A parser of test results doesn't expect to see any extra messages. PiperOrigin-RevId: 298966577
2020-03-04Merge release-20200219.0-100-ga690b57 (automated)gVisor bot
2020-03-04Ensure that safemem.BlockSeqOf(safemem.Block{}) produces an empty BlockSeq.Jamie Liu
PiperOrigin-RevId: 298941855
2020-03-03Update cached file size when cache is skippedFabricio Voznika
gofer.dentryReadWriter.WriteFromBlocks was not updating gofer.dentry.size after a write operation that skips the cache. Updates #1198 PiperOrigin-RevId: 298708646
2020-03-03Merge release-20200219.0-93-g371abe0 (automated)gVisor bot
2020-03-03Avoid memory leaksTamir Duberstein
Properly discard segments from the segment heap. PiperOrigin-RevId: 298704074
2020-03-03Merge release-20200219.0-92-g277a0d5 (automated)gVisor bot
2020-03-03platform/ptrace: don't call probeSeccomp on arm64Andrei Vagin
The support of PTRACE_SYSEMU on arm64 was added in the 5.3 kernel, so we can be sure that the current version is higher that 5.3. And this change moves vsyscall seccomp rules to the arch specific file, because vsyscall isn't supported on arm64. PiperOrigin-RevId: 298696493
2020-03-03Merge release-20200219.0-91-g844e4d2 (automated)gVisor bot
2020-03-03Extract local variables for readabilityTamir Duberstein
PiperOrigin-RevId: 298690552
2020-03-03Merge release-20200219.0-86-gc15b851 (automated)gVisor bot
2020-03-03Fix datarace on TransportEndpointInfo.ID and clean up semantics.Ian Gudger
Ensures that all access to TransportEndpointInfo.ID is either: * In a function ending in a Locked suffix. * While holding the appropriate mutex. This primary affects the checkV4Mapped method on affected endpoints, which has been renamed to checkV4MappedLocked. Also document the method and change its argument to be a value instead of a pointer which had caused some awkwardness. This race was possible in the udp and icmp endpoints between Connect and uses of TransportEndpointInfo.ID including in both itself and Bind. The tcp endpoint did not suffer from this bug, but benefited from better documentation. Updates #357 PiperOrigin-RevId: 298682913
2020-03-03Merge release-20200219.0-84-g43abb24 (automated)gVisor bot
2020-03-02Fix panic caused by invalid address for Bind in packet sockets.Nayana Bidari
PiperOrigin-RevId: 298476533
2020-03-02Merge release-20200219.0-81-g3310175 (automated)gVisor bot
2020-03-02Fix data-race when reading/writing e.amss.Bhasker Hariharan
PiperOrigin-RevId: 298451319
2020-03-02Merge release-20200219.0-80-g8821a71 (automated)gVisor bot
2020-03-02Do not read-lock NIC recursivelyGhanan Gowripalan
A deadlock may occur if a write lock on a RWMutex is blocked between nested read lock attempts as the inner read lock attempt will be blocked in this scenario. Example (T1 and T2 are differnt goroutines): T1: obtain read-lock T2: attempt write-lock (blocks) T1: attempt inner/nested read-lock (blocks) Here we can see that T1 and T2 are deadlocked. Tests: Existing tests pass. PiperOrigin-RevId: 298426678
2020-03-02Merge release-20200219.0-79-gf03e19d (automated)gVisor bot
2020-03-02Merge pull request #1885 from avagin:arm64-pcidsgVisor bot
PiperOrigin-RevId: 298405064
2020-03-02Merge release-20200219.0-77-g42fb7d3 (automated)gVisor bot
2020-03-02socket: take readMu to access readViewAndrei Vagin
DATA RACE in netstack.(*SocketOperations).fetchReadView Write at 0x00c001dca138 by goroutine 1001: gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).fetchReadView() pkg/sentry/socket/netstack/netstack.go:418 +0x85 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).coalescingRead() pkg/sentry/socket/netstack/netstack.go:2309 +0x67 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).nonBlockingRead() pkg/sentry/socket/netstack/netstack.go:2378 +0x183d Previous read at 0x00c001dca138 by goroutine 1111: gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).Ioctl() pkg/sentry/socket/netstack/netstack.go:2666 +0x533 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Ioctl() Reported-by: syzbot+d4c3885fcc346f08deb6@syzkaller.appspotmail.com PiperOrigin-RevId: 298387377
2020-03-02Merge release-20200219.0-76-g62bd3ca (automated)gVisor bot
2020-03-02Take write lock when removing xattrMichael Pratt
PiperOrigin-RevId: 298380654
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