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panic: D0414 11:LINE.ADDR NUM transport_flipcall.go:LINE] recv [channel @ADDR] Rlerror{Error: 95}

Status: fixed on 2020/04/16 02:56
Fix commit: 2dd6384de89a Fix cleanup around socketpair() failure to copy out FDs.
First crash: 1687d, last: 1687d

Sample crash report:
panic: D0414 11:46:52.900387   38705 transport_flipcall.go:234] recv [channel @0xc0003003c0] Rlerror{Error: 95}
runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x69465e]

goroutine 768 [running]:
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0x0)
	pkg/sentry/vfs/file_description.go:161 +0x3e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SocketPair(0xc000f70a80, 0x1, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:251 +0x2c8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000f70a80, 0x35, 0x1, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0d480, ...)
	pkg/sentry/kernel/task_syscall.go:170 +0x122
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000f70a80, 0x35, 0x1, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:305 +0x66
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000f70a80, 0x35, 0x1, 0x5, 0x0, 0x0, 0x0, 0x0, 0xc000490d80, 0x1)
	pkg/sentry/kernel/task_syscall.go:265 +0x96
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000f70a80, 0x2, 0xc000aaaf80)
	pkg/sentry/kernel/task_syscall.go:240 +0x15c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000f70a80, 0xf5f8e0, 0x0)
	pkg/sentry/kernel/task_run.go:258 +0xed5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000f70a80, 0x6a)
	pkg/sentry/kernel/task_run.go:92 +0x18b
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:315 +0xfe

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/04/14 11:47 gvisor c230d12b5ce5 3f3c5574 .config console log report ci-gvisor-main
* Struck through repros no longer work on HEAD.