panic: CopyIn raised signal 7 at 0x3f63538bf000, which is outside source [0x3f63520a3000, 0x3f6352284000) DIAGNOSIS: Error collecting stacks: failed to start /syzkaller/managers/kvm-proxy-overlay-sandbox/current/image [/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -overlay -network=sandbox debug -stacks --ps ci-gvisor-kvm-proxy-overlay-sandbox-3]: fork/exec /syzkaller/managers/kvm-proxy-overlay-sandbox/current/image: cannot allocate memory Error collecting kernel logs: failed to run ["dmesg"]: signal: segmentation fault goroutine 292 [running]: gvisor.dev/gvisor/pkg/safecopy.copyIn(0x3f63537ff000, 0x1e1000, 0x1e1000, 0x3f63520a3000, 0x3f63537ff000, 0x1e1000, 0xc0002f4500) pkg/safecopy/safecopy_unsafe.go:112 +0x34f gvisor.dev/gvisor/pkg/safecopy.CopyIn(...) pkg/safecopy/safecopy_unsafe.go:94 gvisor.dev/gvisor/pkg/safemem.Copy(0x3f63537ff000, 0x1e1000, 0x0, 0x3f63520a3000, 0x1e1000, 0x1e1001, 0x6b6b01, 0xc0002f4520, 0xc0002f4520) pkg/safemem/block_unsafe.go:214 +0x171 gvisor.dev/gvisor/pkg/safemem.CopySeq(0x3f63537ff000, 0xffffffffffffffff, 0x0, 0x1e1000, 0xc0004b80f0, 0xa, 0x0, 0x1e1000, 0xc0008a3758, 0x0, ...) pkg/safemem/seq_unsafe.go:280 +0x27d gvisor.dev/gvisor/pkg/safemem.(*BlockSeqReader).ReadToBlocks(0xc0007779e0, 0x3f63537ff000, 0xffffffffffffffff, 0x0, 0x1e1000, 0xc0008a3808, 0x40c386, 0xc0007779e0) pkg/safemem/io.go:86 +0x84 gvisor.dev/gvisor/pkg/safemem.ReadFullToBlocks(0xf119c0, 0xc0007779e0, 0x3f63537ff000, 0xffffffffffffffff, 0x0, 0x1e1000, 0x0, 0x1e1000, 0x0) pkg/safemem/io.go:54 +0xe4 gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).AllocateAndFill(0xc0002f4500, 0x1e1000, 0x1, 0xf119c0, 0xc0007779e0, 0xc0004b80f0, 0xa, 0x0, 0x1e1000) pkg/sentry/pgalloc/pgalloc.go:504 +0xff gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc000da6000, 0xf2f700, 0xc000dc4000, 0xc000da6080, 0x2, 0xc21000, 0xc22000, 0xc000000100, 0xc0008a3d18, 0xc0008a3d70, ...) pkg/sentry/mm/pma.go:343 +0xbb2 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc000da6000, 0xf2f700, 0xc000dc4000, 0xc000da6080, 0x2, 0xc21000, 0xc22000, 0x100, 0xc000da6080, 0x3, ...) pkg/sentry/mm/pma.go:119 +0xe9 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).HandleUserFault(0xc000da6000, 0xf2f700, 0xc000dc4000, 0xc21358, 0x1000100, 0x7fa279d07760, 0xc00091a798, 0x100) pkg/sentry/mm/syscalls.go:57 +0x1ab gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000dc4000, 0xf11e60, 0x0) pkg/sentry/kernel/task_run.go:287 +0x95a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000dc4000, 0x25) 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