================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:87:38
shift exponent -246 is negative
CPU: 0 PID: 8412 Comm: syz-executor.0 Not tainted 4.19.148-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:___sys_sendmsg+0x412/0x8f0 net/socket.c:2121
Code: 74 08 3c 03 0f 8e 78 04 00 00 49 8d bf 80 00 00 00 44 8b 65 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 42 04 00 00 48 89 ea 45 89 a7 80 00 00 00
RSP: 0018:ffff888052db7a80 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90005c10000
RDX: 1ffff1100a5b6fcb RSI: ffffffff861163ed RDI: ffff888052db7e58
RBP: ffff888052db7d58 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100a5b6f54 R14: ffff8880800d85c0 R15: ffff888052db7dd8
 __sys_sendmmsg+0x195/0x470 net/socket.c:2210
 __do_sys_sendmmsg net/socket.c:2239 [inline]
 __se_sys_sendmmsg net/socket.c:2236 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45dd99
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9bae5f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99
RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe80 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffdc84a618f R14: 00007f9bae5f29c0 R15: 000000000118bf2c
================================================================================
================================================================================
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: 0 PID: 8412 Comm: syz-executor.0 Not tainted 4.19.148-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:___sys_sendmsg+0x412/0x8f0 net/socket.c:2121
Code: 74 08 3c 03 0f 8e 78 04 00 00 49 8d bf 80 00 00 00 44 8b 65 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 42 04 00 00 48 89 ea 45 89 a7 80 00 00 00
RSP: 0018:ffff888052db7a80 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90005c10000
RDX: 1ffff1100a5b6fcb RSI: ffffffff861163ed RDI: ffff888052db7e58
RBP: ffff888052db7d58 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100a5b6f54 R14: ffff8880800d85c0 R15: ffff888052db7dd8
 __sys_sendmmsg+0x195/0x470 net/socket.c:2210
 __do_sys_sendmmsg net/socket.c:2239 [inline]
 __se_sys_sendmmsg net/socket.c:2236 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45dd99
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9bae5f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99
RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe80 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffdc84a618f R14: 00007f9bae5f29c0 R15: 000000000118bf2c
================================================================================
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:90:46
shift exponent -246 is negative
CPU: 0 PID: 8412 Comm: syz-executor.0 Not tainted 4.19.148-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:___sys_sendmsg+0x412/0x8f0 net/socket.c:2121
Code: 74 08 3c 03 0f 8e 78 04 00 00 49 8d bf 80 00 00 00 44 8b 65 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 42 04 00 00 48 89 ea 45 89 a7 80 00 00 00
RSP: 0018:ffff888052db7a80 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90005c10000
RDX: 1ffff1100a5b6fcb RSI: ffffffff861163ed RDI: ffff888052db7e58
RBP: ffff888052db7d58 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100a5b6f54 R14: ffff8880800d85c0 R15: ffff888052db7dd8
 __sys_sendmmsg+0x195/0x470 net/socket.c:2210
 __do_sys_sendmmsg net/socket.c:2239 [inline]
 __se_sys_sendmmsg net/socket.c:2236 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45dd99
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9bae5f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99
RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe80 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffdc84a618f R14: 00007f9bae5f29c0 R15: 000000000118bf2c
================================================================================
================================================================================
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: 0 PID: 8412 Comm: syz-executor.0 Not tainted 4.19.148-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:___sys_sendmsg+0x412/0x8f0 net/socket.c:2121
Code: 74 08 3c 03 0f 8e 78 04 00 00 49 8d bf 80 00 00 00 44 8b 65 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 42 04 00 00 48 89 ea 45 89 a7 80 00 00 00
RSP: 0018:ffff888052db7a80 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90005c10000
RDX: 1ffff1100a5b6fcb RSI: ffffffff861163ed RDI: ffff888052db7e58
RBP: ffff888052db7d58 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100a5b6f54 R14: ffff8880800d85c0 R15: ffff888052db7dd8
 __sys_sendmmsg+0x195/0x470 net/socket.c:2210
 __do_sys_sendmmsg net/socket.c:2239 [inline]
 __se_sys_sendmmsg net/socket.c:2236 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45dd99
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9bae5f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99
RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe80 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffdc84a618f R14: 00007f9bae5f29c0 R15: 000000000118bf2c
================================================================================
bond0: Releasing backup interface bond_slave_1
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
ptrace attach of "/root/syz-executor.2"[8479] was attempted by "/root/syz-executor.2"[8486]
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 'syz-executor.3': attribute type 4 has an invalid length.
IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
netlink: 'syz-executor.3': attribute type 4 has an invalid length.
syz-executor.3 (8503) used greatest stack depth: 22968 bytes left
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1601520917.481:14): pid=8518 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.4" name="bus" dev="sda1" ino=15817 res=0
EXT4-fs (sda1): re-mounted. Opts: (null)
EXT4-fs (sda1): re-mounted. Opts: (null)
EXT4-fs (sda1): re-mounted. Opts: (null)
EXT4-fs (sda1): re-mounted. Opts: (null)
FAT-fs (loop4): invalid media value (0x00)
FAT-fs (loop4): Can't find a valid FAT filesystem
FAT-fs (loop4): invalid media value (0x00)
FAT-fs (loop4): Can't find a valid FAT filesystem
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
EXT4-fs (sda1): re-mounted. Opts: (null)