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panic: runtime error: slice bounds out of range [:NUM] with capacity NUM

Status: fixed on 2022/11/14 20:25
Fix commit: 32c474d82f65 Allow multiple FUSE filesystems to share a connection.
First crash: 1033d, last: 1025d
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: runtime error: slice bounds out of range [:NUM] with capacity NUM (2) C 7 643d 645d 18/26 fixed on 2023/02/24 03:02
gvisor panic: runtime error: slice bounds out of range [:LINE] with capacity 0 2 1205d 1206d 14/26 fixed on 2021/09/27 21:02

Sample crash report:
panic: runtime error: slice bounds out of range [:4] with capacity 0

goroutine 240 [running]:
panic(0x1a055a0, 0xc000042618)
	GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc000802a90 sp=0xc0008029c8 pc=0x43a6c5
runtime.goPanicSliceAcap(0x4, 0x0)
	GOROOT/src/runtime/panic.go:106 +0xa5 fp=0xc000802ad8 sp=0xc000802a90 pc=0x437d25
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalBytes(0xc0005d0370, 0xc000042610, 0x8, 0x8, 0x40ff4b, 0x175be30, 0x478c42)
	pkg/sentry/fsimpl/fuse/request_response.go:54 +0xa53 fp=0xc000802b48 sp=0xc000802ad8 pc=0x158e933
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalUnsafe(0xc0005d0370, 0xc000042610, 0x8, 0x8, 0x50, 0xc0005d0370, 0xc0005d0370)
	bazel-out/k8-fastbuild-ST-fa7f2b6368d1/bin/pkg/sentry/fsimpl/fuse/fuse_abi_autogen_unsafe.go:30 +0x5b fp=0xc000802ba8 sp=0xc000802b48 pc=0x1594f7b
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*Response).UnmarshalPayload(0xc000802e10, 0x1dbc3b0, 0xc0005d0370, 0xf0, 0xc0004d8300)
	pkg/sentry/fsimpl/fuse/request_response.go:228 +0x177 fp=0xc000802c40 sp=0xc000802ba8 pc=0x158f5b7
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).InitRecv(0xc000440e40, 0xc000802e10, 0x1b48201, 0x1af4a60, 0xc0002f6780)
	pkg/sentry/fsimpl/fuse/connection_control.go:102 +0x16f fp=0xc000802cf8 sp=0xc000802c40 pc=0x157a8cf
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).asyncCallBack(0xc000330400, 0x1dbf018, 0xc000527500, 0xc000802e10, 0x87cc25, 0x0)
	pkg/sentry/fsimpl/fuse/dev.go:453 +0x217 fp=0xc000802d78 sp=0xc000802cf8 pc=0x157e957
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).sendResponse(0xc000330400, 0x1dbf018, 0xc000527500, 0xc00050d680, 0x0, 0x0)
	pkg/sentry/fsimpl/fuse/dev.go:416 +0x27d fp=0xc000802e50 sp=0xc000802d78 pc=0x157e39d
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc000330400, 0x1dbf018, 0xc000527500, 0x1db92e0, 0xc000168000, 0x0, 0x0, 0x0, 0x0, 0x100, ...)
	pkg/sentry/fsimpl/fuse/dev.go:341 +0x67c fp=0xc000803140 sp=0xc000802e50 pc=0x157d2bc
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc000330400, 0x1dbf018, 0xc000527500, 0x1db92e0, 0xc000168000, 0x0, 0x1, 0x20002280, 0x18, 0x100, ...)
	pkg/sentry/fsimpl/fuse/dev.go:247 +0x165 fp=0xc000803248 sp=0xc000803140 pc=0x157cbc5
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc000330400, 0x1dbf018, 0xc000527500, 0x1db92e0, 0xc000168000, 0x0, 0x1, 0x20002280, 0x18, 0x100, ...)
	pkg/sentry/vfs/file_description.go:657 +0x131 fp=0xc000803328 sp=0xc000803248 pc=0x961651
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc000527500, 0xc000330400, 0x1db92e0, 0xc000168000, 0x0, 0x1, 0x20002280, 0x18, 0x100, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/read_write.go:348 +0xee fp=0xc000803570 sp=0xc000803328 pc=0x14605ce
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc000527500, 0x3, 0x20002280, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/read_write.go:317 +0x308 fp=0xc000803728 sp=0xc000803570 pc=0x145fdc8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000527500, 0x1, 0x3, 0x20002280, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x195 fp=0xc0008039b8 sp=0xc000803728 pc=0xd8d1b5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000527500, 0x1, 0x3, 0x20002280, 0x18, 0x0, 0x0, 0x0, 0xc000527ddf, 0xc000527500)
	pkg/sentry/kernel/task_syscall.go:238 +0xb4 fp=0xc000803a90 sp=0xc0008039b8 pc=0xd8ebd4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000527500, 0x1, 0x3, 0x20002280, 0x18, 0x0, 0x0, 0x0, 0x1ffffffff, 0xc000000000)
	pkg/sentry/kernel/task_syscall.go:198 +0x10f fp=0xc000803b38 sp=0xc000803a90 pc=0xd8e4cf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000527500, 0x2, 0xc000527500)
	pkg/sentry/kernel/task_syscall.go:173 +0x214 fp=0xc000803ca8 sp=0xc000803b38 pc=0xd8dc54
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000527500, 0x1d91500, 0x0)
	pkg/sentry/kernel/task_run.go:254 +0x1287 fp=0xc000803ed8 sp=0xc000803ca8 pc=0xd79e87
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000527500, 0xf)
	pkg/sentry/kernel/task_run.go:95 +0x353 fp=0xc000803fd0 sp=0xc000803ed8 pc=0xd78433
runtime.goexit()
	src/runtime/asm_amd64.s:1371 +0x1 fp=0xc000803fd8 sp=0xc000803fd0 pc=0x477541
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:342 +0x1a5

Crashes (196):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/01/28 10:03 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:42 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:31 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:22 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:10 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-2-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:07 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 09:01 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:59 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:59 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:59 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:56 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:56 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:55 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:54 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:49 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-2-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:39 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:39 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:36 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:26 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:18 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/28 08:11 gvisor 2083e858ad8d 495e00c5 .config console log report syz C ci-gvisor-ptrace-1-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/05 07:57 gvisor 518535de9b0e e13a05ed .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/05 03:35 gvisor 518535de9b0e e13a05ed .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/05 02:16 gvisor dce4528a1a95 e13a05ed .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/05 01:13 gvisor 518535de9b0e e13a05ed .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 20:14 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 17:33 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 15:41 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-ptrace-2-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 14:35 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-ptrace-3-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 11:41 gvisor dce4528a1a95 a3e470b2 .config console log report info ci-gvisor-ptrace-1-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 09:18 gvisor dce4528a1a95 30646bfe .config console log report info ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 08:08 gvisor dce4528a1a95 30646bfe .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 07:07 gvisor 95d883a92e31 30646bfe .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/04 03:33 gvisor 95d883a92e31 30646bfe .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 22:39 gvisor 95d883a92e31 30646bfe .config console log report info ci-gvisor-ptrace-3-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 21:11 gvisor 95d883a92e31 30646bfe .config console log report info ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 18:40 gvisor 95d883a92e31 4ebb2798 .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 14:07 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 10:24 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 09:51 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 08:45 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 07:08 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 06:04 gvisor a5ce865145c7 4ebb2798 .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/03 02:06 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 22:25 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 21:00 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 16:36 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 14:35 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 13:05 gvisor bcba5136d0d0 4ebb2798 .config console log report info ci-gvisor-ptrace-3-race panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 09:47 gvisor 5a642df6b326 4ebb2798 .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 08:18 gvisor 5a642df6b326 4ebb2798 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 02:48 gvisor 5a642df6b326 4ebb2798 .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/02 00:49 gvisor 5a642df6b326 4ebb2798 .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 23:47 gvisor 5a642df6b326 4ebb2798 .config console log report info ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 19:25 gvisor 0f8db423e270 c1c1631d .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 17:24 gvisor 0f8db423e270 c1c1631d .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 16:12 gvisor 0f8db423e270 c1c1631d .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 15:05 gvisor 0f8db423e270 c1c1631d .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 13:02 gvisor 0f8db423e270 c1c1631d .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 09:19 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 07:41 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 05:54 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 04:51 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 03:43 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 02:37 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/02/01 00:56 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-2 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 22:49 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 21:34 gvisor 5ef032d4df28 6b7c57fe .config console log report info ci-gvisor-kvm-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 20:28 gvisor 2a3d59997fb9 6b7c57fe .config console log report info ci-gvisor-ptrace-2-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 19:18 gvisor 2a3d59997fb9 a491ad2d .config console log report info ci-gvisor-ptrace-3 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 18:08 gvisor 2a3d59997fb9 a491ad2d .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 16:21 gvisor 2a3d59997fb9 a491ad2d .config console log report info ci-gvisor-kvm panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 15:13 gvisor 2a3d59997fb9 a491ad2d .config console log report info ci-gvisor-ptrace-1 panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
2022/01/31 13:24 gvisor 2a3d59997fb9 a491ad2d .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: slice bounds out of range [:NUM] with capacity NUM
* Struck through repros no longer work on HEAD.