================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:87:38
shift exponent -246 is negative
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: e9 73 fd ff ff 48 89 df e8 ff 25 fa 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 5b 57 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d b4 5b 57 00 f4 c3 90 90 41 56 41 55
RSP: 0018:ffff8880a9a6fd58 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7140 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9a60c44
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389f0
R13: 1ffff1101534dfb5 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_secondary+0x44d/0x610 arch/x86/kernel/smpboot.c:271
 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 255 is too large for 64-bit type 'long long unsigned int'
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: e9 73 fd ff ff 48 89 df e8 ff 25 fa 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 5b 57 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d b4 5b 57 00 f4 c3 90 90 41 56 41 55
RSP: 0018:ffff8880a9a6fd58 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7140 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9a60c44
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389f0
R13: 1ffff1101534dfb5 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_secondary+0x44d/0x610 arch/x86/kernel/smpboot.c:271
 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 -246 is negative
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: e9 73 fd ff ff 48 89 df e8 ff 25 fa 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 5b 57 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d b4 5b 57 00 f4 c3 90 90 41 56 41 55
RSP: 0018:ffff8880a9a6fd58 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7140 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9a60c44
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389f0
R13: 1ffff1101534dfb5 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_secondary+0x44d/0x610 arch/x86/kernel/smpboot.c:271
 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 255 is too large for 64-bit type 'long long unsigned int'
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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
 </IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: e9 73 fd ff ff 48 89 df e8 ff 25 fa 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 5b 57 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d b4 5b 57 00 f4 c3 90 90 41 56 41 55
RSP: 0018:ffff8880a9a6fd58 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7140 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9a60c44
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff896389f0
R13: 1ffff1101534dfb5 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_secondary+0x44d/0x610 arch/x86/kernel/smpboot.c:271
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
================================================================================
audit: type=1326 audit(1601686958.658:127): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=26606 comm="syz-executor.3" exe="/root/syz-executor.3" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460bda code=0x0
overlayfs: overlapping lowerdir path
overlayfs: overlapping lowerdir path
device vxlan0 entered promiscuous mode
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
device bond1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
8021q: adding VLAN 0 to HW filter on device bond1
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
audit: type=1800 audit(1601686962.708:128): pid=26970 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=524303 res=0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 'syz-executor.5': attribute type 5 has an invalid length.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1800 audit(1601686963.438:129): pid=27056 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=15987 res=0
audit: type=1800 audit(1601686963.468:130): pid=27056 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=15987 res=0
audit: type=1800 audit(1601686963.468:131): pid=27056 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=15987 res=0
audit: type=1804 audit(1601686963.568:132): pid=27075 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="bus" dev="sda1" ino=15965 res=1
audit: type=1804 audit(1601686963.628:133): pid=27092 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="bus" dev="sda1" ino=15965 res=1
audit: type=1800 audit(1601686963.698:134): pid=27075 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15965 res=0
audit: type=1800 audit(1601686963.698:135): pid=27092 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15965 res=0
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.