panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0xa8 pc=0xe965e2] goroutine 197 [running]: panic({0x108b500, 0x1d898c0}) GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc0002fcf60 sp=0xc0002fcea0 pc=0x4351c8 runtime.panicmem(...) GOROOT/src/runtime/panic.go:221 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:735 +0x327 fp=0xc0002fcfb0 sp=0xc0002fcf60 pc=0x44bd67 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).callFuture(0xc0006824e0, 0x0, 0xc00022c000) pkg/sentry/fsimpl/fuse/connection.go:299 +0x42 fp=0xc0002fd008 sp=0xc0002fcfb0 pc=0xe965e2 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).Call(0xc0006824e0, 0xc0004e7560, 0xc00022c000) pkg/sentry/fsimpl/fuse/connection.go:275 +0xfd fp=0xc0002fd060 sp=0xc0002fd008 pc=0xe9649d gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*inode).setAttr(0xc0003fe400, {0x13c7750, 0xc0005b1500}, 0xc00062605c, 0x4b12b3, {{0x18, 0x0, 0x0, 0x0, 0x0, ...}, ...}, ...) pkg/sentry/fsimpl/fuse/fusefs.go:952 +0x2a5 fp=0xc0002fd320 sp=0xc0002fd060 pc=0xe9f2a5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*inode).SetStat(0x0, {0x13c7750, 0xc0005b1500}, 0x412aa5, 0xc0004b4538, {{0x18, 0x0, 0x0, 0x0, 0x0, ...}, ...}) pkg/sentry/fsimpl/fuse/fusefs.go:920 +0x85 fp=0xc0002fd400 sp=0xc0002fd320 pc=0xe9ef85 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).SetStatAt(0xc000626000, {0x13c7750, 0xc0005b1500}, 0xc000616480, {{0x18, 0x0, 0x0, 0x0, 0x0, 0x0, ...}, ...}) pkg/sentry/fsimpl/kernfs/filesystem.go:816 +0x213 fp=0xc0002fd528 sp=0xc0002fd400 pc=0x7e0593 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*filesystem).SetStatAt(0xc000626000, {0x13c7750, 0xc0005b1500}, 0xc000616480, {{0x18, 0x0, 0x0, 0x0, 0x0, 0x0, ...}, ...}) :1 +0x85 fp=0xc0002fd5f0 sp=0xc0002fd528 pc=0xea85e5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SetStatAt(0xc000540230, {0x13c7750, 0xc0005b1500}, 0x3, 0xc0004b47f0, 0xc0002fda60) pkg/sentry/vfs/vfs.go:583 +0xef fp=0xc0002fd768 sp=0xc0002fd5f0 pc=0x7005af gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.setstatat(0xc0005b1500, 0xffffff9c, {{{0xc000608700, 0x51265e}, 0x0}, 0x6c, 0x4a}, 0x0, 0x1, 0xc0004b4a60) pkg/sentry/syscalls/linux/vfs2/setstat.go:458 +0x43d fp=0xc0002fda00 sp=0xc0002fd768 pc=0xdf021d gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.fchownat(0xc0005b5040, 0x4b4b50, 0x463bfb, 0x5b5040, 0xc0, 0x0) pkg/sentry/syscalls/linux/vfs2/setstat.go:120 +0x131 fp=0xc0002fdb18 sp=0xc0002fda00 pc=0xdee451 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Chown(0x40000002, {{0x20000440}, {0x0}, {0x0}, {0x7f0313eeb700}, {0x7f0313eeb700}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/setstat.go:84 +0x30 fp=0xc0002fdb50 sp=0xc0002fdb18 pc=0xdee230 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0005b1500, 0x5c, {{0x20000440}, {0x0}, {0x0}, {0x7f0313eeb700}, {0x7f0313eeb700}, {0x0}}) pkg/sentry/kernel/task_syscall.go:103 +0x376 fp=0xc0002fdca0 sp=0xc0002fdb50 pc=0x96b496 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0005b1500, 0xc000402540, {{0x20000440}, {0x0}, {0x0}, {0x7f0313eeb700}, {0x7f0313eeb700}, {0x0}}) pkg/sentry/kernel/task_syscall.go:238 +0x4d fp=0xc0002fdd10 sp=0xc0002fdca0 pc=0x96c00d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x13dad48, 0xc00037ac60, {{0x20000440}, {0x0}, {0x0}, {0x7f0313eeb700}, {0x7f0313eeb700}, {0x0}}) pkg/sentry/kernel/task_syscall.go:198 +0x65 fp=0xc0002fdd70 sp=0xc0002fdd10 pc=0x96bcc5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0005b1500) pkg/sentry/kernel/task_syscall.go:173 +0x31a fp=0xc0002fde38 sp=0xc0002fdd70 pc=0x96b9fa gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0004be480, 0xc0005b1500) pkg/sentry/kernel/task_run.go:254 +0xe45 fp=0xc0002fdf60 sp=0xc0002fde38 pc=0x960965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0005b1500, 0x13) pkg/sentry/kernel/task_run.go:95 +0x1ac fp=0xc0002fdfc0 sp=0xc0002fdf60 pc=0x95f4ac gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·230() pkg/sentry/kernel/task_start.go:339 +0x2a fp=0xc0002fdfe0 sp=0xc0002fdfc0 pc=0x969fea runtime.goexit() src/runtime/asm_amd64.s:1581 +0x1 fp=0xc0002fdfe8 sp=0xc0002fdfe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:339 +0xfe