request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-10-proto-196-type-1, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-10-proto-196-type-1, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-10-proto-196-type-1, throttling... WARNING: CPU: 1 PID: 3924 at arch/x86/kvm/x86.c:7375 kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 arch/x86/kvm/x86.c:7375 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 3924 Comm: syzkaller899036 Not tainted 4.15.0-rc7-next-20180112+ #95 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1085 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 arch/x86/kvm/x86.c:7375 RSP: 0018:ffff8801d40b76b0 EFLAGS: 00010293 RAX: ffff8801d4852480 RBX: ffff8801d4890000 RCX: ffffffff810df8c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801a5358f60 RBP: ffff8801d40b7a40 R08: 1ffff10034a6bc83 R09: 0000000000000001 R10: ffff8801d40b7690 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801bd5cd980 R14: ffff8801a5358d40 R15: ffff8801a5358d40 kvm_vcpu_ioctl+0x6f1/0xff0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2555 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x449839 RSP: 002b:00007f2375dedda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000006dad8c RCX: 0000000000449839 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000169 RBP: 00000000006dad88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 702f74656e2f666c R13: 65732f636f72702f R14: 6d766b2f7665642f R15: 000000000000000d kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4958 Comm: modprobe Not tainted 4.15.0-rc7-next-20180112+ #95 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff8801db207e88 EFLAGS: 00010086 RAX: dffffc0000000000 RBX: 00000000001606f0 RCX: 0000000000000001 RDX: 1ffffffff0d19204 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff8801db207e88 R08: ffff8801db207f40 R09: ffff8801db207f80 R10: ffff8801ac087d70 R11: 0000000000000003 R12: 0000000000000086 R13: 1ffff1003b640fd4 R14: ffff8801d4dde2c0 R15: ffff8801db207fc0 FS: 00007f16fc271700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056368f54e008 CR3: 00000001d4562003 CR4: 00000000001626f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:252 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:275 [inline] cpu_vmxoff arch/x86/include/asm/virtext.h:44 [inline] __cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:59 [inline] cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:67 [inline] smp_reboot_interrupt+0x3ea/0x510 arch/x86/kernel/smp.c:179 reboot_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:919 RIP: 0010:debug_lockdep_rcu_enabled.part.1+0x2a/0x60 kernel/rcu/update.c:301 RSP: 0018:ffff8801ac087de0 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff07 RAX: dffffc0000000000 RBX: ffff8801d4dde2c0 RCX: ffffffff819b4a1e RDX: 0000000000000000 RSI: 0000000000000019 RDI: ffff8801d4ddeb34 RBP: ffff8801ac087de8 R08: 1ffff10035810f15 R09: 0000000000000005 R10: ffff8801ac087d70 R11: 0000000000000003 R12: 0000000000000000 R13: ffffffff85e0fe40 R14: 0000000000000019 R15: 0000000000000000 debug_lockdep_rcu_enabled+0x77/0x90 kernel/rcu/update.c:300 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline] ___might_sleep+0x5e/0x470 kernel/sched/core.c:6079 __might_sleep+0x95/0x190 kernel/sched/core.c:6067 __might_fault+0xab/0x1d0 mm/memory.c:4554 _copy_to_user+0x2c/0xc0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] SYSC_newuname kernel/sys.c:1186 [inline] SyS_newuname+0x81/0x1d0 kernel/sys.c:1181 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x7f16fbb64907 RSP: 002b:00007fff5e918638 EFLAGS: 00000202 ORIG_RAX: 000000000000003f RAX: ffffffffffffffda RBX: 0000000000021001 RCX: 00007f16fbb64907 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fff5e918650 RBP: 00007f16fbe3fe40 R08: 0000000000000078 R09: 0101010101010101 R10: 0000000000000000 R11: 0000000000000202 R12: 00007f16fbe3fe98 R13: 0000000000000000 R14: 00007f16fbe3eda0 R15: 000056368f56f000 Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d RIP: native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: ffff8801db207e88 ---[ end trace 5702adc7e90def39 ]--- Shutting down cpus with NMI invalid opcode: 0000 [#2] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4958 Comm: modprobe Tainted: G D 4.15.0-rc7-next-20180112+ #95 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:smp_stop_nmi_callback+0x279/0x560 arch/x86/kernel/smp.c:170 RSP: 0018:fffffe000000ab40 EFLAGS: 00010002 RAX: 00000000001626f0 RBX: 1fffffc000001569 RCX: 0000000000000020 RDX: dffffc0000000000 RSI: fffffe000000abe8 RDI: fffffe000000aba8 RBP: fffffe000000acd0 R08: fffffe000000ac28 R09: fffffe000000ac68 R10: ffff88021fff8010 R11: ffff88021fff801d R12: 1fffffc000001585 R13: fffffe000000aca8 R14: 1fffffc000001575 R15: 1fffffc00000157d FS: 00007f16fc271700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056368f54e008 CR3: 00000001d4562003 CR4: 00000000001626f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nmi_handle+0x23b/0x5f0 arch/x86/kernel/nmi.c:137 default_do_nmi+0x6d/0x150 arch/x86/kernel/nmi.c:335 do_nmi+0x205/0x2c0 arch/x86/kernel/nmi.c:521 end_repeat_nmi+0x1a/0x1e RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 kernel/kcov.c:94 RSP: 0018:ffff8801db207c58 EFLAGS: 00000006 RAX: ffff8801d4dde2c0 RBX: ffffffff8659f4eb RCX: ffffffff81414c69 RDX: 0000000000010000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff8801db207c68 R08: 0000000000000000 R09: 1ffff1003b640f68 R10: ffff8801db207d40 R11: ffffffff86941e80 R12: ffff8801db207d40 R13: ffff8801db207d00 R14: dffffc0000000000 R15: ffff8801db207fc0 panic+0xec/0x41c kernel/panic.c:170 oops_end+0xd2/0xe0 arch/x86/kernel/dumpstack.c:293 die+0x3d/0x50 arch/x86/kernel/dumpstack.c:356 do_general_protection+0x34e/0x3e0 arch/x86/kernel/traps.c:560 general_protection+0x2c/0x60 arch/x86/entry/entry_64.S:1248 RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff8801db207e88 EFLAGS: 00010086 RAX: dffffc0000000000 RBX: 00000000001606f0 RCX: 0000000000000001 RDX: 1ffffffff0d19204 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff8801db207e88 R08: ffff8801db207f40 R09: ffff8801db207f80 R10: ffff8801ac087d70 R11: 0000000000000003 R12: 0000000000000086 R13: 1ffff1003b640fd4 R14: ffff8801d4dde2c0 R15: ffff8801db207fc0 __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:252 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:275 [inline] cpu_vmxoff arch/x86/include/asm/virtext.h:44 [inline] __cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:59 [inline] cpu_emergency_vmxoff arch/x86/include/asm/virtext.h:67 [inline] smp_reboot_interrupt+0x3ea/0x510 arch/x86/kernel/smp.c:179 reboot_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:919 RIP: 0010:debug_lockdep_rcu_enabled.part.1+0x2a/0x60 kernel/rcu/update.c:301 RSP: 0018:ffff8801ac087de0 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff07 RAX: dffffc0000000000 RBX: ffff8801d4dde2c0 RCX: ffffffff819b4a1e RDX: 0000000000000000 RSI: 0000000000000019 RDI: ffff8801d4ddeb34 RBP: ffff8801ac087de8 R08: 1ffff10035810f15 R09: 0000000000000005 R10: ffff8801ac087d70 R11: 0000000000000003 R12: 0000000000000000 R13: ffffffff85e0fe40 R14: 0000000000000019 R15: 0000000000000000 debug_lockdep_rcu_enabled+0x77/0x90 kernel/rcu/update.c:300 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline] ___might_sleep+0x5e/0x470 kernel/sched/core.c:6079 __might_sleep+0x95/0x190 kernel/sched/core.c:6067 __might_fault+0xab/0x1d0 mm/memory.c:4554 _copy_to_user+0x2c/0xc0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] SYSC_newuname kernel/sys.c:1186 [inline] SyS_newuname+0x81/0x1d0 kernel/sys.c:1181 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x7f16fbb64907 RSP: 002b:00007fff5e918638 EFLAGS: 00000202 ORIG_RAX: 000000000000003f RAX: ffffffffffffffda RBX: 0000000000021001 RCX: 00007f16fbb64907 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fff5e918650 RBP: 00007f16fbe3fe40 R08: 0000000000000078 R09: 0101010101010101 R10: 0000000000000000 R11: 0000000000000202 R12: 00007f16fbe3fe98 R13: 0000000000000000 R14: 00007f16fbe3eda0 R15: 000056368f56f000 Code: 00 00 00 00 48 83 e7 f8 48 29 fb 8d 4b 2c c1 e9 03 f3 48 ab 48 81 c4 68 01 00 00 b8 01 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 01 c4 48 c7 c7 20 91 8c 86 48 89 f8 48 c1 e8 03 80 3c 10 00 RIP: smp_stop_nmi_callback+0x279/0x560 arch/x86/kernel/smp.c:170 RSP: fffffe000000ab40 ---[ end trace 5702adc7e90def3a ]--- Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..