kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns ================================================================================ UBSAN: Undefined behaviour in net/core/gen_estimator.c:87:38 shift exponent -122 is negative CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 est_timer.cold+0x96/0x126 net/core/gen_estimator.c:87 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: e9 73 fd ff ff 48 89 df e8 3f 83 fc f9 e9 59 ff ff ff 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d c4 d9 59 00 fb f4 90 e9 07 00 00 00 0f 00 2d b4 d9 59 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffffffff89407d40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12c7138 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff89481284 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389b0 R13: 1ffffffff1280fb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x320 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2f8/0x500 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xd6 kernel/sched/idle.c:369 start_kernel+0x93d/0x978 init/main.c:736 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================================================================ ================================================================================ UBSAN: Undefined behaviour in net/core/gen_estimator.c:88:23 shift exponent 128 is too large for 64-bit type 'long long unsigned int' CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 est_timer.cold+0xd6/0x126 net/core/gen_estimator.c:88 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: e9 73 fd ff ff 48 89 df e8 3f 83 fc f9 e9 59 ff ff ff 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d c4 d9 59 00 fb f4 90 e9 07 00 00 00 0f 00 2d b4 d9 59 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffffffff89407d40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12c7138 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff89481284 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389b0 R13: 1ffffffff1280fb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x320 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2f8/0x500 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xd6 kernel/sched/idle.c:369 start_kernel+0x93d/0x978 init/main.c:736 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================================================================ ================================================================================ UBSAN: Undefined behaviour in net/core/gen_estimator.c:90:46 shift exponent -122 is negative CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 est_timer.cold+0x17/0x126 net/core/gen_estimator.c:90 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: e9 73 fd ff ff 48 89 df e8 3f 83 fc f9 e9 59 ff ff ff 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d c4 d9 59 00 fb f4 90 e9 07 00 00 00 0f 00 2d b4 d9 59 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffffffff89407d40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12c7138 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff89481284 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389b0 R13: 1ffffffff1280fb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x320 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2f8/0x500 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xd6 kernel/sched/idle.c:369 start_kernel+0x93d/0x978 init/main.c:736 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================================================================ ================================================================================ UBSAN: Undefined behaviour in net/core/gen_estimator.c:91:22 shift exponent 128 is too large for 64-bit type 'long long unsigned int' CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 est_timer.cold+0x5b/0x126 net/core/gen_estimator.c:91 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: e9 73 fd ff ff 48 89 df e8 3f 83 fc f9 e9 59 ff ff ff 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d c4 d9 59 00 fb f4 90 e9 07 00 00 00 0f 00 2d b4 d9 59 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffffffff89407d40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12c7138 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff89481284 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389b0 R13: 1ffffffff1280fb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x320 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2f8/0x500 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xd6 kernel/sched/idle.c:369 start_kernel+0x93d/0x978 init/main.c:736 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================================================================ netlink: 'syz-executor.5': attribute type 10 has an invalid length. team0: Device macvtap0 is up. Set it down before adding it as a team port audit: type=1804 audit(1600694616.949:9): pid=8632 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir053712841/syzkaller.V8X5qZ/25/bus" dev="sda1" ino=15835 res=1 audit: type=1804 audit(1600694617.209:10): pid=8646 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir053712841/syzkaller.V8X5qZ/25/bus" dev="sda1" ino=15835 res=1 Process accounting resumed audit: type=1804 audit(1600694617.599:11): pid=8664 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir053712841/syzkaller.V8X5qZ/26/bus" dev="sda1" ino=15836 res=1 Process accounting resumed Process accounting resumed device bond_slave_0 entered promiscuous mode Process accounting resumed audit: type=1400 audit(1600694620.679:12): avc: denied { create } for pid=8780 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Enabling of bearer rejected, failed to enable media Enabling of bearer rejected, failed to enable media device batadv0 entered promiscuous mode netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor.2'. overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: filesystem on './file0' not supported as upperdir overlayfs: conflicting lowerdir path overlayfs: conflicting lowerdir path