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2020-11-06Merge release-20201030.0-42-gbcd883f09 (automated)gVisor bot
2020-11-06Avoid extra DecRef on kernfs root for "kept" dentries.Dean Deng
The root dentry was not created through Inode.Lookup, so we should not release a reference even if inode.Keep() is true. PiperOrigin-RevId: 341103220
2020-11-06Merge release-20201030.0-41-g53eeb06ef (automated)gVisor bot
2020-11-06Fix infinite loop when splicing to pipes/eventfds.Nicolas Lacasse
Writes to pipes of size < PIPE_BUF are guaranteed to be atomic, so writes larger than that will return EAGAIN if the pipe has capacity < PIPE_BUF. Writes to eventfds will return EAGAIN if the write would cause the eventfd value to go over the max. In both such cases, calling Ready() on the FD will return true (because it is possible to write), but specific kinds of writes will in fact return EAGAIN. This CL fixes an infinite loop in splice and sendfile (VFS1 and VFS2) by forcing skipping the readiness check for the outfile in send, splice, and tee. PiperOrigin-RevId: 341102260
2020-11-06Merge release-20201030.0-39-g29683f359 (automated)gVisor bot
2020-11-06Cap iovec array length in //pkg/sentry/hostfd.Jamie Liu
PiperOrigin-RevId: 341001328
2020-11-03Merge release-20201027.0-63-g1cfa8d58f (automated)gVisor bot
2020-11-03Fix more nogo testsTing-Yu Wang
PiperOrigin-RevId: 340536306
2020-11-03Merge release-20201027.0-62-g580bbb749 (automated)gVisor bot
2020-11-03[vfs2] Do not drop inotify waiters across S/R.Dean Deng
The waits-for relationship between an epoll instance and an inotify fd should be restored. This fixes flaky inotify vfs2 tests. PiperOrigin-RevId: 340531367
2020-11-03Merge release-20201027.0-61-g723464ec5 (automated)gVisor bot
2020-11-03Make pipe min/max sizes match linux.Nicolas Lacasse
The default pipe size already matched linux, and is unchanged. Furthermore `atomicIOBytes` is made a proper constant (as it is in Linux). We were plumbing usermem.PageSize everywhere, so this is no functional change. PiperOrigin-RevId: 340497006
2020-11-03Merge release-20201027.0-60-g861c11bfa (automated)gVisor bot
2020-11-03Merge pull request #3617 from laijs:upperhalfgVisor bot
PiperOrigin-RevId: 340484823
2020-11-03Merge release-20201027.0-57-g0e96f8065 (automated)gVisor bot
2020-11-03arm64 kvm: inject sError to trigger sigbuslubinszARM
Use an sErr injection to trigger sigbus when we receive EFAULT from the run ioctl. After applying this patch, mmap_test_runsc_kvm will be passed on Arm64. Signed-off-by: Bin Lu <bin.lu@arm.com> COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/4542 from lubinszARM:pr_kvm_mmap_1 f81bd42466d1d60a581e5fb34de18b78878c68c1 PiperOrigin-RevId: 340461239
2020-11-03Merge release-20201027.0-56-g1a3f417f4 (automated)gVisor bot
2020-11-02Implement command GETZCNT for semctl.Jing Chen
PiperOrigin-RevId: 340389884
2020-11-03Merge release-20201027.0-55-g1321f837b (automated)gVisor bot
2020-11-02[vfs2] Refactor kernfs checkCreateLocked.Dean Deng
Don't return the filename, since it can already be determined by the caller. This was causing a panic in RenameAt, which relied on the name to be nonempty even if the error was EEXIST. Reported-by: syzbot+e9f117d000301e42361f@syzkaller.appspotmail.com PiperOrigin-RevId: 340381946
2020-11-02Pass hashing algorithms in verity fs optsChong Cai
PiperOrigin-RevId: 340275942
2020-11-03kvm: share upper halves among all pagtablesLai Jiangshan
Fixes: #509 Signed-off-by: Lai Jiangshan <jiangshan.ljs@antfin.com> Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
2020-11-02Merge release-20201019.0-116-g5e606844d (automated)gVisor bot
2020-11-01Fix returned error when deleting non-existant addressIan Lewis
PiperOrigin-RevId: 340149214
2020-10-31Merge release-20201019.0-114-g4eb1c87e8 (automated)gVisor bot
2020-10-30Adjust error handling in kernfs rename.Dean Deng
Read-only directories (e.g. under /sys, /proc) should return EPERM for rename. PiperOrigin-RevId: 339979022
2020-10-31Merge release-20201019.0-113-g1f25697cf (automated)gVisor bot
2020-10-30Fix rename error handling for VFS2 kernfs.Dean Deng
The non-errno error was causing panics before. PiperOrigin-RevId: 339969348
2020-10-30Merge release-20201019.0-111-g9ad864628 (automated)gVisor bot
2020-10-30Separate kernel.Task.AsCopyContext() into CopyContext() and OwnCopyContext().Jamie Liu
kernel.copyContext{t} cannot be used outside of t's task goroutine, for three reasons: - t.CopyScratchBuffer() is task-goroutine-local. - Calling t.MemoryManager() without running on t's task goroutine or locking t.mu violates t.MemoryManager()'s preconditions. - kernel.copyContext passes t as context.Context to MM IO methods, which is illegal outside of t's task goroutine (cf. kernel.Task.Value()). Fix this by splitting AsCopyContext() into CopyContext() (which takes an explicit context.Context and is usable outside of the task goroutine) and OwnCopyContext() (which uses t as context.Context, but is only usable by t's task goroutine). PiperOrigin-RevId: 339933809
2020-10-30Merge release-20201019.0-110-gc94bf137d (automated)gVisor bot
2020-10-30Merge pull request #4564 from zhlhahaha:1981gVisor bot
PiperOrigin-RevId: 339921446
2020-10-29Merge release-20201019.0-103-g181fea0b5 (automated)gVisor bot
2020-10-29Make RedirectTarget thread safeKevin Krakauer
Fixes #4613. PiperOrigin-RevId: 339746784
2020-10-29Merge release-20201019.0-101-g02fe467b4 (automated)gVisor bot
2020-10-29Keep magic constants out of netstackKevin Krakauer
PiperOrigin-RevId: 339721152
2020-10-29Merge release-20201019.0-96-g265f1eb2c (automated)gVisor bot
2020-10-28Add leak checking for kernfs.Dentry.Dean Deng
Updates #1486. PiperOrigin-RevId: 339581879
2020-10-29Merge release-20201019.0-95-g3b4674ffe (automated)gVisor bot
2020-10-28Add logging option to leak checker.Dean Deng
Also refactor the template and CheckedObject interface to make this cleaner. Updates #1486. PiperOrigin-RevId: 339577120
2020-10-28Merge release-20201019.0-92-gd20ef61a8 (automated)gVisor bot
2020-10-28Merge pull request #4630 from lemin9538:lemin_arm64_devgVisor bot
PiperOrigin-RevId: 339540747
2020-10-28Merge release-20201019.0-90-g9907539d9 (automated)gVisor bot
2020-10-28Invalidate overlay.dentry.dirents during open() file creation.Jamie Liu
Updates #1199 PiperOrigin-RevId: 339528827
2020-10-28Merge release-20201019.0-88-g4cc3894b2 (automated)gVisor bot
2020-10-28[vfs] Refactor hostfs mmap into kernfs util.Ayush Ranjan
PiperOrigin-RevId: 339505487
2020-10-28Merge release-20201019.0-81-g5fe886ab6 (automated)gVisor bot
2020-10-27Merge pull request #4598 from lubinszARM:pr_kvm_precise_syncgVisor bot
PiperOrigin-RevId: 339404936
2020-10-28arm64: need to restore the sentry's TLS when in EL1Min Le
Signed-off-by: Min Le <lemin.lm@antgroup.com>
2020-10-27Add SHA512 to merkle tree libraryChong Cai
PiperOrigin-RevId: 339377254
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