================================================================================ UBSAN: Undefined behaviour in net/sched/sch_api.c:569:10 shift exponent 92 is too large for 32-bit type 'int' CPU: 1 PID: 9171 Comm: syz-executor.2 Not tainted 4.19.147-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 __qdisc_calculate_pkt_len+0x370/0x570 net/sched/sch_api.c:569 qdisc_calculate_pkt_len include/net/sch_generic.h:697 [inline] __dev_xmit_skb net/core/dev.c:3443 [inline] __dev_queue_xmit+0x1372/0x2ec0 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip6_finish_output2+0xe78/0x2370 net/ipv6/ip6_output.c:120 ip6_finish_output+0x610/0xcc0 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x7c0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:455 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xa6b/0x1860 net/ipv6/ndisc.c:491 ndisc_send_rs+0x131/0x6a0 net/ipv6/ndisc.c:685 addrconf_rs_timer+0x2d9/0x640 net/ipv6/addrconf.c:3834 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:rcu_is_watching+0xb1/0x100 kernel/rcu/tree.c:1026 Code: ff df 48 c1 ea 03 0f b6 14 02 48 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1c 8b 43 10 d1 e8 83 e0 01 65 ff 0d af da a2 7e <74> 03 5b 5d c3 e8 91 56 a1 ff 5b 5d c3 48 89 ef e8 9a ec 4b 00 eb RSP: 0018:ffff88804b4d7ad8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffff8880ae3239c0 RCX: ffffffff815f12ec RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880ae3239d0 RBP: ffff8880ae3239d0 R08: 0000000000000000 R09: ffffed1015c6473a R10: ffff8880ae3239d3 R11: 0000000000000001 R12: 0000000000000004 R13: 000000002063a000 R14: ffff88804c21ca40 R15: ffff8880a9ab9460 rcu_read_lock include/linux/rcupdate.h:628 [inline] count_memcg_event_mm include/linux/memcontrol.h:763 [inline] handle_mm_fault+0x882/0xb90 mm/memory.c:4182 faultin_page mm/gup.c:530 [inline] __get_user_pages+0x58d/0x16b0 mm/gup.c:730 populate_vma_page_range+0x200/0x2d0 mm/gup.c:1234 __mm_populate+0x1ea/0x350 mm/gup.c:1282 mm_populate include/linux/mm.h:2335 [inline] vm_mmap_pgoff+0x1e2/0x200 mm/util.c:362 ksys_mmap_pgoff+0x4aa/0x660 mm/mmap.c:1580 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e179 Code: 3d b2 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 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fdd6d5b2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000021200 RCX: 000000000045e179 RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 000000000118d040 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 000000000118cff4 R13: 00007ffe1d9f6a2f R14: 00007fdd6d5b39c0 R15: 000000000118cff4 ================================================================================ IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1601056913.888:23): pid=9256 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/67/bus" dev="sda1" ino=15945 res=1 audit: type=1804 audit(1601056913.958:24): pid=9265 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/67/bus" dev="sda1" ino=15945 res=1 audit: type=1804 audit(1601056914.278:25): pid=9292 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/68/bus" dev="sda1" ino=15946 res=1 audit: type=1804 audit(1601056914.348:26): pid=9299 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/68/bus" dev="sda1" ino=15946 res=1 audit: type=1804 audit(1601056914.658:27): pid=9320 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/69/bus" dev="sda1" ino=15928 res=1 audit: type=1804 audit(1601056914.728:28): pid=9327 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir706535368/syzkaller.zAk6jL/69/bus" dev="sda1" ino=15928 res=1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 132 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 132 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=25278 sclass=netlink_route_socket pid=9497 comm=syz-executor.2 overlayfs: failed to resolve './bus': -2 xt_hashlimit: size too large, truncated to 1048576 xt_hashlimit: overflow, try lower: 0/0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=25278 sclass=netlink_route_socket pid=9533 comm=syz-executor.2 netlink: 'syz-executor.2': attribute type 1 has an invalid length. device bond_slave_0 entered promiscuous mode netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 88 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 88 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue