summaryrefslogtreecommitdiffhomepage
path: root/pkg/sentry/kernel
AgeCommit message (Collapse)Author
2021-09-15Merge release-20210906.0-22-g39470428d (automated)gVisor bot
2021-09-14Fix race on msgrcv(MSG_COPY).Rahat Mahmood
Previously, we weren't making a copy when a sysv message queue was receiving a message with the MSG_COPY flag. This flag indicates the message being received should be left in the queue and a copy of the message should be returned to userspace. Without the copy, a racing process can modify the original message while it's being marshalled to user memory. Reported-by: syzbot+cb15e644698b20ff4e17@syzkaller.appspotmail.com PiperOrigin-RevId: 396712856
2021-09-04Merge release-20210830.0-23-g775a32112 (automated)gVisor bot
2021-09-03Add //pkg/sentry/seccheck.Jamie Liu
This defines common infrastructure for dynamically-configured security checks, including an example usage in the clone(2) path. PiperOrigin-RevId: 394797270
2021-08-27Merge release-20210816.0-52-gf7281c6cb (automated)gVisor bot
2021-08-27Fix lock order violations: mm.mappingMu > Task.mu.Nicolas Lacasse
Document this ordering in mm/mm.go. PiperOrigin-RevId: 393413203
2021-08-24Merge release-20210816.0-37-g18beb6770 (automated)gVisor bot
2021-08-24Merge pull request #6438 from gystemd:tcsetpgrp_SIGTTOUgVisor bot
PiperOrigin-RevId: 392774712
2021-08-18Merge release-20210806.0-39-gb495ae599 (automated)gVisor bot
2021-08-17Merge pull request #6262 from sudo-sturbia:msgqueue/syscalls3gVisor bot
PiperOrigin-RevId: 391416650
2021-08-17Added a SIGTTOU block check in SetForegroundProcessGroupgystemd
2021-08-17Implement control operations on msgqueue.Zyad A. Ali
For IPCInfo, update value of MSGSEG constant in abi to avoid overflow in MsgInfo.MsgSeg. MSGSEG was originaly simplified in abi, and is unused (by us and within the kernel), so updating it is okay. Updates #135
2021-08-17Implement ipc.Object.Set and use it in ipc mechanisms.Zyad A. Ali
Set provides functionality of {sem,shm,msg}ctl(IPC_SET).
2021-08-16fix sending of SIGTTOU signal in SetForegroundProcessGroupgystemd
Changed sendSignal to sendSignalLocked because tg.pidns.owner.mu and tg.signalHandlers.mu are already locked in SetForegroundProcess Added a control to verify whether the calling process is ignoring SIGTTOU before sending the signal
2021-08-14Merge release-20210806.0-29-gce58d71fd (automated)gVisor bot
2021-08-13[syserror] Remove pkg syserror.Zach Koopmans
Removes package syserror and moves still relevant code to either linuxerr or to syserr (to be later removed). Internal errors are converted from random types to *errors.Error types used in linuxerr. Internal errors are in linuxerr/internal.go. PiperOrigin-RevId: 390724202
2021-08-12Merge release-20210806.0-21-g02370bbd3 (automated)gVisor bot
2021-08-12[syserror] Convert remaining syserror definitions to linuxerr.Zach Koopmans
Convert remaining public errors (e.g. EINTR) from syserror to linuxerr. PiperOrigin-RevId: 390471763
2021-08-12Merge release-20210726.0-57-g3416a3db7 (automated)gVisor bot
2021-08-12Merge release-20210726.0-50-ga50596874 (automated)gVisor bot
2021-08-11Initial cgroupfs support for subcontainersRahat Mahmood
Allow creation and management of subcontainers through cgroupfs directory syscalls. Also add a mechanism to specify a default root container to start new jobs in. This implements the filesystem support for subcontainers, but doesn't implement hierarchical resource accounting or task migration. PiperOrigin-RevId: 390254870
2021-08-10fix missing SIGTTOU signal in SetForegroundProcessGroupgystemd
2021-08-06Merge release-20210726.0-42-g569f605f4 (automated)gVisor bot
2021-08-05Correctly handle interruptions in blocking msgqueue syscalls.Rahat Mahmood
Reported-by: syzbot+63bde04529f701c76168@syzkaller.appspotmail.com Reported-by: syzbot+69866b9a16ec29993e6a@syzkaller.appspotmail.com PiperOrigin-RevId: 389084629
2021-08-03Merge release-20210726.0-27-g8363a98c4 (automated)gVisor bot
2021-08-03Implement MSG_COPY option for msgrcv(2).Zyad A. Ali
Implement Queue.Copy and add more tests for it. Updates #135
2021-08-03Implement stubs for msgsnd(2) and msgrcv(2).Zyad A. Ali
Add support for msgsnd and msgrcv and enable syscall tests. Updates #135
2021-08-03Implement Queue.Receive.Zyad A. Ali
Receive implements the behaviour of msgrcv(2) without the MSG_COPY flag. Updates #135
2021-08-03Implement Queue.Send.Zyad A. Ali
Send implements the functionality of msgsnd(2). Updates #135
2021-07-30Merge release-20210726.0-16-gc9aac64e0 (automated)gVisor bot
2021-07-30Merge pull request #6257 from zhlhahaha:2193-1gVisor bot
PiperOrigin-RevId: 387885663
2021-07-28Merge release-20210720.0-39-g964fb3ca7 (automated)gVisor bot
2021-07-27Don't create an extra fd bitmap to allocate a new fd.Andrei Vagin
2021-07-23Merge release-20210712.0-59-g3d0a93000 (automated)gVisor bot
2021-07-23Don't panic on user-controlled state in semaphore syscalls.Rahat Mahmood
Reported-by: syzbot+beb099a67f670386a367@syzkaller.appspotmail.com PiperOrigin-RevId: 386521361
2021-07-22Merge release-20210712.0-50-g8daeda207 (automated)gVisor bot
2021-07-22Merge pull request #6108 from sudo-sturbia:msgqueue/syscallsgVisor bot
PiperOrigin-RevId: 386323389
2021-07-22Merge release-20210712.0-40-gd5fb4623e (automated)gVisor bot
2021-07-22Replace kernel package types for clone and unshare with linux package types.Jamie Liu
PiperOrigin-RevId: 386312456
2021-07-20Merge release-20210712.0-29-g1ad382220 (automated)gVisor bot
2021-07-20Add go:build directives as required by Go 1.17's gofmt.Jamie Liu
PiperOrigin-RevId: 385894869
2021-07-13Implement stubs for msgget(2) and msgctl(IPC_RMID).Zyad A. Ali
Add support for msgget, and msgctl(IPC_RMID), and enable msgqueue syscall tests. Updates #135
2021-07-13Implement Registry.Remove.Zyad A. Ali
Remove implements the behaviour or msgctl(IPC_RMID). Updates #135
2021-07-13Implement Registry.FindOrCreate.Zyad A. Ali
FindOrCreate implements the behaviour of msgget(2). Updates #135
2021-07-13Create package msgqueue.Zyad A. Ali
Create package msgqueue, define primitives to be used for message queues, and add a msgqueue.Registry to IPCNamespace. Updates #135
2021-07-13Create ipc.Registry.Zyad A. Ali
Create ipc.Registry to hold fields, and define functionality common to all SysV registries, and have registries use it.
2021-07-13Create ipc package and ipc.Object.Zyad A. Ali
Create ipc.Object to define fields and functionality used in SysV mechanisms, and have them use it.
2021-07-13apply bitmap for fd_tableHoward Zhang
Apply bitmap in fd_table to record open file fd. It can accelerate the speed of allocating or removing fd from fdtable. Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-07-13Merge release-20210705.0-15-g520795aaa (automated)gVisor bot
2021-07-12Fix deadlock in procfsFabricio Voznika
Kernfs provides an internal mechanism to defer calls to `DecRef()` because on the last reference `Filesystem.mu` must be held and most places that need to call `DecRef()` are inside the lock. The same can be true for filesystems that extend kernfs. procfs needs to look up files and `DecRef()` them inside the `kernfs.Filesystem.mu`. If the files happen to be procfs files, it can deadlock trying to decrement if it's the last reference. This change extends the mechanism to external callers to defer DecRefs to `vfs.FileDescription` and `vfs.VirtualDentries`. PiperOrigin-RevId: 384361647
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-25 21:14:39 +0000