fatal error: fault
DIAGNOSIS:


Error collecting stacks: failed to start /syzkaller/managers/ptrace-direct-overlay-host/current/image [/syzkaller/managers/ptrace-direct-overlay-host/current/image -root /syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=shared -network=host debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-0]: fork/exec /syzkaller/managers/ptrace-direct-overlay-host/current/image: cannot allocate memory[signal SIGBUS: bus error code=0x2 addr=0x7f27dca75020 pc=0x4610da]

goroutine 141 [running]:
runtime.throw(0xdbb31a, 0x5)
	GOROOT/src/runtime/panic.go:774 +0x72 fp=0xc000740c60 sp=0xc000740c30 pc=0x42f1b2
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:391 +0x455 fp=0xc000740c90 sp=0xc000740c60 pc=0x4450e5
runtime.memmove(0x7f27dca75000, 0x7f27dcc87000, 0x2000)
	src/runtime/memmove_amd64.s:363 +0x42a fp=0xc000740c98 sp=0xc000740c90 pc=0x4610da
gvisor.dev/gvisor/pkg/safemem.Copy(0x7f27dca75000, 0x2000, 0x0, 0x7f27dcc87000, 0x2000, 0x2000, 0x31eb000, 0x31ed000, 0x1)
	pkg/safemem/block_unsafe.go:199 +0x340 fp=0xc000740d48 sp=0xc000740c98 pc=0x59c350
gvisor.dev/gvisor/pkg/safemem.CopySeq(0x7f27dca75000, 0xffffffffffffffff, 0x0, 0x2000, 0x7f27dcc87000, 0xffffffffffffffff, 0x0, 0x2000, 0xc000740eb0, 0x0, ...)
	pkg/safemem/seq_unsafe.go:277 +0x27d fp=0xc000740e18 sp=0xc000740d48 pc=0x59f12d
gvisor.dev/gvisor/pkg/safemem.(*BlockSeqReader).ReadToBlocks(0xc0002ff480, 0x7f27dca75000, 0xffffffffffffffff, 0x0, 0x2000, 0xc000318020, 0x40c0f6, 0xc0002ff480)
	pkg/safemem/io.go:86 +0x84 fp=0xc000740e98 sp=0xc000740e18 pc=0x59ca74
gvisor.dev/gvisor/pkg/safemem.ReadFullToBlocks(0xee03e0, 0xc0002ff480, 0x7f27dca75000, 0xffffffffffffffff, 0x0, 0x2000, 0x0, 0x2000, 0x0)
	pkg/safemem/io.go:54 +0xe4 fp=0xc000740f18 sp=0xc000740e98 pc=0x59c984
gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).AllocateAndFill(0xc000318000, 0x2000, 0x1, 0xee03e0, 0xc0002ff480, 0x7f27dcc87000, 0xffffffffffffffff, 0x0, 0x2000)
	pkg/sentry/pgalloc/pgalloc.go:504 +0xfe fp=0xc000740fa0 sp=0xc000740f18 pc=0x6f572e
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc0009aa000, 0xefe480, 0xc00065aa80, 0xc0009aa080, 0x5, 0xa69000, 0xa6a000, 0xc000000100, 0xc95560, 0xc0007414c8, ...)
	pkg/sentry/mm/pma.go:343 +0xbae fp=0xc000741418 sp=0xc000740fa0 pc=0x7d186e
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc0009aa000, 0xefe480, 0xc00065aa80, 0xc0009aa080, 0x5, 0xa69000, 0xa69c14, 0x100, 0xc0009aa080, 0x6, ...)
	pkg/sentry/mm/pma.go:119 +0xe9 fp=0xc0007414d8 sp=0xc000741418 pc=0x7d0609
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc0009aa000, 0xefe480, 0xc00065aa80, 0xa69c10, 0xa69c14, 0x100, 0xc000741628, 0x0, 0xc0007b2f84, 0xc0008ee788)
	pkg/sentry/mm/io.go:523 +0x283 fp=0xc0007415d8 sp=0xc0007414d8 pc=0x7cc1a3
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOut(0xc0009aa000, 0xefe480, 0xc00065aa80, 0xa69c10, 0xc0007b2f84, 0x4, 0x4, 0x0, 0x4, 0xc77ae0, ...)
	pkg/sentry/mm/io.go:119 +0x147 fp=0xc000741668 sp=0xc0007415d8 pc=0x7c9ab7
gvisor.dev/gvisor/pkg/usermem.(*IOReadWriter).Write(0xc000741728, 0xc0007b2f84, 0x4, 0x4, 0x1500250, 0xc77ae0, 0xc0007b2f80)
	pkg/usermem/usermem.go:167 +0x87 fp=0xc0007416d0 sp=0xc000741668 pc=0x5a4f87
gvisor.dev/gvisor/pkg/usermem.CopyObjectOut(0xefe480, 0xc00065aa80, 0xef9d20, 0xc0009aa000, 0xa69c10, 0xc77ae0, 0xc0007b2f80, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, ...)
	pkg/usermem/usermem.go:200 +0x160 fp=0xc000741768 sp=0xc0007416d0 pc=0x5a5170
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc00065aa80, 0xc000741a38, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_clone.go:327 +0xcb6 fp=0xc000741a08 sp=0xc000741768 pc=0x82f486
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc00065aa80, 0x1200011, 0x0, 0x0, 0xa69c10, 0xa69940, 0xef6f, 0xc000741b7c, 0x40000002, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:219 +0x1e8 fp=0xc000741aa0 sp=0xc000741a08 pc=0x8c6e78
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc00065aa80, 0x1200011, 0x0, 0x0, 0xa69c10, 0xa69940, 0x0, 0x475d51, 0xef6f, 0xc000741b7c, ...)
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:34 +0x67 fp=0xc000741b00 sp=0xc000741aa0 pc=0x89ae77
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00065aa80, 0x38, 0x1200011, 0x0, 0x0, 0xa69c10, 0xa69940, 0x0, 0x0, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:170 +0x125 fp=0xc000741c60 sp=0xc000741b00 pc=0x846bf5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00065aa80, 0x38, 0x1200011, 0x0, 0x0, 0xa69c10, 0xa69940, 0x0, 0xa69940, 0x0)
	pkg/sentry/kernel/task_syscall.go:291 +0x66 fp=0xc000741ce8 sp=0xc000741c60 pc=0x847dd6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00065aa80, 0x38, 0x1200011, 0x0, 0x0, 0xa69c10, 0xa69940, 0x0, 0xc000165b00, 0x1)
	pkg/sentry/kernel/task_syscall.go:252 +0x96 fp=0xc000741d48 sp=0xc000741ce8 pc=0x847956
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00065aa80, 0x2, 0xc0008502c0)
	pkg/sentry/kernel/task_syscall.go:227 +0x139 fp=0xc000741e08 sp=0xc000741d48 pc=0x8472e9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00065aa80, 0xee0840, 0x0)
	pkg/sentry/kernel/task_run.go:232 +0x1119 fp=0xc000741f40 sp=0xc000741e08 pc=0x83c249
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00065aa80, 0x32)
	pkg/sentry/kernel/task_run.go:92 +0x1bb fp=0xc000741fd0 sp=0xc000741f40 pc=0x83ac4b
runtime.goexit()
	src/runtime/asm_amd64.s:1357 +0x1 fp=0xc000741fd8 sp=0xc000741fd0 pc=0x45faf1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:310 +0xfe