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fatal error: fault

Status: closed as invalid on 2019/08/13 21:09
Reported-by: syzbot+8d6e63e88c76150974ca@syzkaller.appspotmail.com
First crash: 2347d, last: 2169d
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor fatal error: fault (2) C 5197 617d 1755d 0/26 moderation: reported C repro on 2020/02/06 06:28

Sample crash report:
fatal error: fault
[signal SIGBUS: bus error code=0x2 addr=0x3fea1d6d0020 pc=0x456baa]

goroutine 215 [running]:
runtime.throw(0xbb7ec3, 0x5)
	GOROOT/src/runtime/panic.go:616 +0x81 fp=0xc420d69030 sp=0xc420d69010 pc=0x429441
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:385 +0x273 fp=0xc420d69080 sp=0xc420d69030 pc=0x43e693
runtime.memmove(0x3fea1d6d0000, 0x3fea1d4fb000, 0x2a000)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib~/src/runtime/memmove_amd64.s:362 +0x42a fp=0xc420d69088 sp=0xc420d69080 pc=0x456baa
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.Copy(0x3fea1d6d0000, 0x2a000, 0x0, 0x3fea1d4fb000, 0x2a000, 0x2a000, 0xc4219cbc00, 0x1, 0xc420d691c8)
	pkg/sentry/safemem/block_unsafe.go:199 +0x33d fp=0xc420d69138 sp=0xc420d69088 pc=0x58935d
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.CopySeq(0x3fea1d6d0000, 0xffffffffffffffff, 0x0, 0x2a000, 0x3fea1d4fb000, 0xffffffffffffffff, 0x0, 0x2a000, 0x0, 0x0, ...)
	pkg/sentry/safemem/seq_unsafe.go:276 +0x25d fp=0xc420d69208 sp=0xc420d69138 pc=0x58c20d
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.(*BlockSeqReader).ReadToBlocks(0xc4202ab0e0, 0x3fea1d6d0000, 0xffffffffffffffff, 0x0, 0x2a000, 0xc420d69350, 0x40fb69, 0xc4202ab0e0)
	pkg/sentry/safemem/io.go:86 +0x84 fp=0xc420d69288 sp=0xc420d69208 pc=0x589a44
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.ReadFullToBlocks(0xc69300, 0xc4202ab0e0, 0x3fea1d6d0000, 0xffffffffffffffff, 0x0, 0x2a000, 0x0, 0x2a000, 0x0)
	pkg/sentry/safemem/io.go:54 +0xe4 fp=0xc420d69308 sp=0xc420d69288 pc=0x589954
gvisor.googlesource.com/gvisor/pkg/sentry/platform.AllocateAndFill(0xc784c0, 0xc42015db00, 0x2a000, 0x1, 0xc69300, 0xc4202ab0e0, 0xffffffffffffffff, 0x0, 0x2a000, 0xc4206ecbe8)
	pkg/sentry/platform/platform.go:419 +0x114 fp=0xc420d69390 sp=0xc420d69308 pc=0x5e65b4
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).breakCopyOnWriteLocked(0xc4206ec580, 0xc4206ecbe8, 0x2, 0x6d3000, 0x6d4000, 0x6d3000, 0x6d4000, 0xc4206ecbe8, 0x2, 0xc4206ecbe8)
	pkg/sentry/mm/pma.go:433 +0x34d fp=0xc420d694b0 sp=0xc420d69390 pc=0x69e7fd
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc4206ec580, 0xc75e00, 0xc420590400, 0xc4206ec5f0, 0x3, 0x6d3000, 0x6d4000, 0x1, 0xc4206ec5f0, 0x4, ...)
	pkg/sentry/mm/pma.go:142 +0x2a2 fp=0xc420d69590 sp=0xc420d694b0 pc=0x69ce52
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc4206ec580, 0xc75e00, 0xc420590400, 0x6d3c10, 0x6d3c14, 0x100, 0xc420d696e0, 0x71ece0, 0x20d696c0, 0xc420d696f0)
	pkg/sentry/mm/io.go:484 +0x260 fp=0xc420d69690 sp=0xc420d69590 pc=0x694d30
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOut(0xc4206ec580, 0xc75e00, 0xc420590400, 0x6d3c10, 0xc4219b2df0, 0x4, 0x8, 0x0, 0xc4219b2df0, 0x4, ...)
	pkg/sentry/mm/io.go:119 +0x14b fp=0xc420d69720 sp=0xc420d69690 pc=0x692aeb
gvisor.googlesource.com/gvisor/pkg/sentry/usermem.(*IOReadWriter).Write(0xc420d697d8, 0xc4219b2df0, 0x4, 0x8, 0x10d6d20, 0xaa9b60, 0xc4219b2dec)
	pkg/sentry/usermem/usermem.go:155 +0x7c fp=0xc420d69788 sp=0xc420d69720 pc=0x58f89c
gvisor.googlesource.com/gvisor/pkg/sentry/usermem.CopyObjectOut(0xc75e00, 0xc420590400, 0xc74b40, 0xc4206ec580, 0x6d3c10, 0xaa9b60, 0xc4219b2dec, 0x0, 0x3fffffffff, 0x3fffffffff, ...)
	pkg/sentry/usermem/usermem.go:184 +0x10a fp=0xc420d69818 sp=0xc420d69788 pc=0x58fa2a
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc420590400, 0xc420d69ab0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_clone.go:291 +0xb55 fp=0xc420d69a80 sp=0xc420d69818 pc=0x702875
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone(0xc420590400, 0x1200011, 0x0, 0x0, 0x6d3c10, 0x6d3940, 0x7fe4e7606410, 0x1ff, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:157 +0x21b fp=0xc420d69b18 sp=0xc420d69a80 pc=0x8c95cb
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone(0xc420590400, 0x1200011, 0x0, 0x0, 0x6d3c10, 0x6d3940, 0x6, 0x0, 0xc420d69c08, 0x6f8da4, ...)
	pkg/sentry/syscalls/linux/sys_thread.go:171 +0x67 fp=0xc420d69b78 sp=0xc420d69b18 pc=0x8c9687
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc420590400, 0x38, 0x1200011, 0x0, 0x0, 0x6d3c10, 0x6d3940, 0x6, 0xc420d69ca8, 0xbb6320, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x307 fp=0xc420d69c30 sp=0xc420d69b78 pc=0x7169a7
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc420590400, 0x38, 0x1200011, 0x0, 0x0, 0x6d3c10, 0x6d3940, 0x6, 0x6d3940, 0x6)
	pkg/sentry/kernel/task_syscall.go:278 +0x62 fp=0xc420d69cb8 sp=0xc420d69c30 pc=0x717642
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc420590400, 0x38, 0x1200011, 0x0, 0x0, 0x6d3c10, 0x6d3940, 0x6, 0xc42010ac00, 0xc420d69e00)
	pkg/sentry/kernel/task_syscall.go:241 +0x91 fp=0xc420d69d18 sp=0xc420d69cb8 pc=0x717271
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc420590400, 0x2, 0xc42015d200)
	pkg/sentry/kernel/task_syscall.go:216 +0x10c fp=0xc420d69e10 sp=0xc420d69d18 pc=0x716bcc
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc420590400, 0xc69020, 0x0)
	pkg/sentry/kernel/task_run.go:217 +0xed8 fp=0xc420d69f88 sp=0xc420d69e10 pc=0x70e0a8
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc420590400, 0xc)
	pkg/sentry/kernel/task_run.go:95 +0x174 fp=0xc420d69fd0 sp=0xc420d69f88 pc=0x70ce64
runtime.goexit()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib~/src/runtime/asm_amd64.s:2361 +0x1 fp=0xc420d69fd8 sp=0xc420d69fd0 pc=0x455f11
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:251 +0x100

Crashes (660):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/06/24 10:24 https://gvisor.googlesource.com/gvisor master 9c0c4fd8d05c 2064fc5c .config console log report syz C ci-gvisor-kvm-direct-sandbox
2018/06/24 09:38 https://gvisor.googlesource.com/gvisor master 9c0c4fd8d05c 2064fc5c .config console log report syz C ci-gvisor-main
2018/08/24 10:59 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report syz ci-gvisor-kvm-direct-sandbox
2018/08/24 10:29 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report syz ci-gvisor-kvm-direct-sandbox
2018/08/21 06:02 https://gvisor.googlesource.com/gvisor master 0fc7b306959e 95b5c82b .config console log report syz ci-gvisor-kvm-direct-sandbox
2018/08/20 15:17 https://gvisor.googlesource.com/gvisor master 11800311a537 2dc4378f .config console log report syz ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/20 14:37 https://gvisor.googlesource.com/gvisor master 11800311a537 2dc4378f .config console log report syz ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/20 14:07 https://gvisor.googlesource.com/gvisor master 11800311a537 2dc4378f .config console log report syz ci-gvisor-kvm-direct-sandbox
2018/08/20 05:24 https://gvisor.googlesource.com/gvisor master 11800311a537 2dc4378f .config console log report syz ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/19 20:35 https://gvisor.googlesource.com/gvisor master 11800311a537 2dc4378f .config console log report syz ci-gvisor-kvm-direct-sandbox
2018/07/06 14:30 https://gvisor.googlesource.com/gvisor master 34af9a61741f 785a9833 .config console log report syz ci-gvisor-ptrace-direct-overlay-host
2018/06/24 09:07 https://gvisor.googlesource.com/gvisor master 9c0c4fd8d05c 2064fc5c .config console log report syz ci-gvisor-ptrace-direct-overlay-host
2018/12/19 13:36 https://gvisor.googlesource.com/gvisor master 898838e34d1b c2c27bd1 .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/29 19:18 https://gvisor.googlesource.com/gvisor master ae648bafda2d 4937cb2b .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/29 19:18 https://gvisor.googlesource.com/gvisor master 2524111fc633 4937cb2b .config console log report ci-gvisor-main
2018/08/29 12:16 https://gvisor.googlesource.com/gvisor master ae648bafda2d 53ff8784 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/29 12:16 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 53ff8784 .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/29 12:16 https://gvisor.googlesource.com/gvisor master 2524111fc633 53ff8784 .config console log report ci-gvisor-main
2018/08/29 12:16 https://gvisor.googlesource.com/gvisor master db81c0b02f2f 53ff8784 .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/28 20:05 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 b771b17e .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/28 20:05 https://gvisor.googlesource.com/gvisor master db81c0b02f2f b771b17e .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/28 20:05 https://gvisor.googlesource.com/gvisor master ae648bafda2d b771b17e .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/28 07:28 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 7ef1de9e .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/28 07:28 https://gvisor.googlesource.com/gvisor master 2524111fc633 7ef1de9e .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/28 07:28 https://gvisor.googlesource.com/gvisor master 2524111fc633 7ef1de9e .config console log report ci-gvisor-main
2018/08/28 07:28 https://gvisor.googlesource.com/gvisor master db81c0b02f2f 7ef1de9e .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/26 09:27 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 36d87ddb .config console log report ci-gvisor-main
2018/08/25 20:19 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 20749b59 .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/25 20:18 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 20749b59 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/25 20:18 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 20749b59 .config console log report ci-gvisor-main
2018/08/25 20:18 https://gvisor.googlesource.com/gvisor master b17e80ef5a44 20749b59 .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/25 02:58 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-main
2018/08/25 02:58 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/24 21:36 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/24 21:36 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-main
2018/08/24 21:36 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/24 21:36 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/24 18:48 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/24 18:48 https://gvisor.googlesource.com/gvisor master a81a4402a265 9b0f5c75 .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/24 16:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/24 16:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/08/24 16:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-kvm-direct-sandbox
2018/08/24 16:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/24 16:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-main
2018/08/24 12:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-main
2018/08/24 12:48 https://gvisor.googlesource.com/gvisor master 64403265a04a 95b5c82b .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/06/24 08:27 https://gvisor.googlesource.com/gvisor master 9c0c4fd8d05c 2064fc5c .config console log report ci-gvisor-kvm-proxy-overlay-sandbox
2018/08/29 12:16 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 53ff8784 .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2018/08/28 07:30 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 7ef1de9e .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/08/28 06:14 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 7ef1de9e .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2018/08/28 06:14 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 7ef1de9e .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/08/28 06:14 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 7ef1de9e .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2018/08/25 20:19 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 20749b59 .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2018/08/25 20:19 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 20749b59 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/08/24 21:36 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 9b0f5c75 .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2018/08/24 16:48 https://github.com/dvyukov/gvisor.git race d4d5ed1d9def 95b5c82b .config console log report ci-gvisor-ptrace-proxy-sandbox-race
* Struck through repros no longer work on HEAD.