netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
================================================================================
UBSAN: Undefined behaviour in net/sched/cls_tcindex.c:238:29
shift exponent 2047 is too large for 32-bit type 'int'
CPU: 0 PID: 8366 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:
 __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
 valid_perfect_hash net/sched/cls_tcindex.c:238 [inline]
 tcindex_set_parms.cold+0x170/0x22f net/sched/cls_tcindex.c:398
 tcindex_change+0x220/0x2f3 net/sched/cls_tcindex.c:518
 tc_new_tfilter+0xb38/0x1570 net/sched/cls_api.c:1320
 rtnetlink_rcv_msg+0x498/0xc10 net/core/rtnetlink.c:4778
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xc7/0x130 net/socket.c:632
 ___sys_sendmsg+0x7bb/0x8f0 net/socket.c:2115
 __sys_sendmsg net/socket.c:2153 [inline]
 __do_sys_sendmsg net/socket.c:2162 [inline]
 __se_sys_sendmsg net/socket.c:2160 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160
 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:00007fbc25e5bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002d400 RCX: 000000000045dd99
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc9e485a9f R14: 00007fbc25e5c9c0 R15: 000000000118bf2c
================================================================================
F2FS-fs (loop3): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): Failed to get valid F2FS checkpoint
F2FS-fs (loop3): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 2th superblock
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): Failed to get valid F2FS checkpoint
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
FAT-fs (loop5): Directory bread(block 6) failed
FAT-fs (loop5): Directory bread(block 6) failed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
FAT-fs (loop5): Directory bread(block 6) failed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
overlayfs: workdir and upperdir must reside under the same mount
FAT-fs (loop5): Directory bread(block 6) failed
FAT-fs (loop5): Directory bread(block 6) failed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
overlayfs: workdir and upperdir must reside under the same mount
FAT-fs (loop5): Directory bread(block 6) failed
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
FAT-fs (loop5): Directory bread(block 6) failed
audit: type=1800 audit(1601537673.291:13): pid=8528 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=15776 res=0
FAT-fs (loop5): Directory bread(block 6) failed
audit: type=1800 audit(1601537673.831:14): pid=8528 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=15776 res=0
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables
audit: type=1804 audit(1601537677.971:15): pid=8741 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir611658183/syzkaller.ZD2YVR/16/file1/file0" dev="loop3" ino=13 res=1