SIGSEGV: segmentation violation
PC=0x95ef30 m=24 sigcode=128

DIAGNOSIS:


Error collecting stacks: failed to run ["/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image" "-root" "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "-watchdog-action=panic" "-network=none" "-debug" "-platform=kvm" "-file-access=exclusive" "-overlay" "-network=sandbox" "debug" "-stacks" "ci-gvisor-kvm-proxy-overlay-sandbox-0"]: exit status 128
I0117 02:16:47.446885   60866 x:0] ***************************
I0117 02:16:47.446942   60866 x:0] Args: [/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=kvm -file-access=exclusive -overlay -network=sandbox debug -stacks ci-gvisor-kvm-proxy-overlay-sandbox-0]
I0117 02:16:47.446956   60866 x:0] Git Revision: e4d3ca7263291b43cdc49c7553c62608be062cd9
I0117 02:16:47.446961   60866 x:0] PID: 60866
I0117 02:16:47.446968   60866 x:0] UID: 0, GID: 0
I0117 02:16:47.446971   60866 x:0] Configuration:
I0117 02:16:47.446974   60866 x:0] 		RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root
I0117 02:16:47.446977   60866 x:0] 		Platform: kvm
I0117 02:16:47.446991   60866 x:0] 		FileAccess: exclusive, overlay: true
I0117 02:16:47.447006   60866 x:0] 		Network: sandbox, logging: false
I0117 02:16:47.447012   60866 x:0] 		Strace: false, max size: 1024, syscalls: []
I0117 02:16:47.447017   60866 x:0] ***************************
D0117 02:16:47.447036   60866 x:0] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0117 02:16:47.447543   60866 x:0] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-0": signal 0
D0117 02:16:47.447557   60866 x:0] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0117 02:16:47.447562   60866 x:0] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0117 02:16:47.447695   60866 x:0] urpc: successfully marshalled 117 bytes.
I0117 02:16:47.573188   60866 x:0] Found sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0", PID: 45408
I0117 02:16:47.573208   60866 x:0] Retrieving sandbox stacks
D0117 02:16:47.573212   60866 x:0] Stacks sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0117 02:16:47.573225   60866 x:0] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0117 02:16:47.573281   60866 x:0] urpc: successfully marshalled 36 bytes.
W0117 02:16:47.582854   60866 x:0] FATAL ERROR: error retrieving stacks: err getting sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer
error retrieving stacks: err getting sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer
goroutine 175 [syscall, locked to thread]:
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser(0xc00050e800, 0xc000226d80, 0xc00055b900, 0xc00000e120, 0x100050001, 0xc00014c378, 0x21151c00000002, 0xbf081743d6b6aa21, 0xc0007bc658)
	pkg/sentry/platform/kvm/machine_amd64.go:235 +0xbe fp=0xc080b35da8 sp=0xc080b35d38 pc=0x98f21e
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.(*context).Switch(0xc00014c370, 0xd5ab60, 0xc000411200, 0xd688e0, 0xc000226d80, 0xc0ffffffff, 0x0, 0x0, 0xc080b35f78, 0x7423a0)
	pkg/sentry/platform/kvm/context.go:71 +0x1fd fp=0xc080b35e68 sp=0xc080b35da8 pc=0x9847dd
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc080b2c000, 0xd4e280, 0x0)
	pkg/sentry/kernel/task_run.go:205 +0x348 fp=0xc080b35f88 sp=0xc080b35e68 pc=0x73ac48
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc080b2c000, 0x1e)
	pkg/sentry/kernel/task_run.go:91 +0x149 fp=0xc080b35fd0 sp=0xc080b35f88 pc=0x73a589
runtime.goexit()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib%/src/runtime/asm_amd64.s:1333 +0x1 fp=0xc080b35fd8 sp=0xc080b35fd0 pc=0x457fa1
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:279 +0xfe