F2FS-fs (loop5): Magic Mismatch, valid(0xf2f52010) - read(0x0) ================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 204 is too large for 64-bit type 'long unsigned int' F2FS-fs (loop5): Can't find valid F2FS filesystem in 2th superblock CPU: 0 PID: 4458 Comm: syz-executor.2 Not tainted 4.19.152-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 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_calc_qavg include/net/red.h:313 [inline] red_enqueue+0x2064/0x2200 net/sched/sch_red.c:68 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x14e1/0x2ec0 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] ip6_local_out+0xaf/0x170 net/ipv6/output_core.c:178 ip6_send_skb+0xb3/0x300 net/ipv6/ip6_output.c:1699 ip6_push_pending_frames+0xdd/0x100 net/ipv6/ip6_output.c:1719 rawv6_push_pending_frames net/ipv6/raw.c:618 [inline] rawv6_sendmsg+0x2b79/0x37e0 net/ipv6/raw.c:959 inet_sendmsg+0x174/0x640 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8f0 net/socket.c:2115 __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: 0033:0x45de59 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:00007f3bef32ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045de59 RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000004 RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffde8e83dbf R14: 00007f3bef32f9c0 R15: 000000000118bf2c ================================================================================ attempt to access beyond end of device loop5: rw=12288, want=8200, limit=8192 attempt to access beyond end of device loop5: rw=12288, want=8200, limit=8192 overlayfs: conflicting lowerdir path overlayfs: workdir and upperdir must reside under the same mount audit: type=1804 audit(1603091082.880:71): pid=4520 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1967/bus" dev="sda1" ino=16097 res=1 audit: type=1804 audit(1603091083.800:72): pid=4524 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1967/bus" dev="sda1" ino=16097 res=1 audit: type=1804 audit(1603091083.800:73): pid=4526 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1967/bus" dev="sda1" ino=16097 res=1 audit: type=1804 audit(1603091083.830:74): pid=4544 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1967/bus" dev="sda1" ino=16097 res=1 overlayfs: missing 'workdir' overlayfs: missing 'workdir' Cannot find add_set index 0 as target Cannot find add_set index 0 as target Cannot find add_set index 0 as target XFS (loop5): Invalid superblock magic number audit: type=1804 audit(1603091087.510:75): pid=4652 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-testdir224048801/syzkaller.nVOGkE/1963/file0" dev="sda1" ino=15780 res=1 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1603091088.310:76): pid=4689 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-testdir224048801/syzkaller.nVOGkE/1963/file0" dev="sda1" ino=15780 res=1 IPVS: ftp: loaded support on port[0] = 21 hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected audit: type=1800 audit(1603091089.110:77): pid=4759 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=0 res=0 audit: type=1800 audit(1603091089.150:78): pid=4759 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=32769 res=0 device lo entered promiscuous mode audit: type=1804 audit(1603091090.300:79): pid=4807 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1980/bus" dev="sda1" ino=16398 res=1 audit: type=1804 audit(1603091090.330:80): pid=4806 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1980/bus" dev="sda1" ino=16398 res=1 audit: type=1804 audit(1603091090.660:81): pid=4806 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir719931497/syzkaller.tugtz2/1980/bus" dev="sda1" ino=16398 res=1