overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: unrecognized mount option " EHℝ+J)""znV`X]Pj " or missing value ================================================================================ UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6 shift exponent 32 is too large for 32-bit type 'unsigned int' CPU: 0 PID: 23682 Comm: syz-executor.1 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 htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline] hash_ipmac_create.cold+0x1a/0x2b net/netfilter/ipset/ip_set_hash_gen.h:1290 ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940 nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565 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: 0033:0x45de59 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:00007f5ee6951c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000029b40 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000020001080 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffed84c4a7f R14: 00007f5ee69529c0 R15: 000000000118bf2c ================================================================================ overlayfs: './file0' not a directory ntfs: (device loop3): parse_options(): The nls option requires an argument. TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. ntfs: (device loop3): parse_options(): Unrecognized mount option . TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. VFS: unable to find oldfs superblock on device loop4 VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop2. VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop2. IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0xcbf/0xf30 net/netfilter/ipvs/ip_vs_ctl.c:2451 overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'. hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected SQUASHFS error: lzo decompression failed, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0xb1 SQUASHFS error: Unable to read metadata cache entry [b1] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. SQUASHFS error: Unable to read inode 0x22011e netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium audit: type=1804 audit(1603235852.245:68): pid=24026 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-testdir084923325/syzkaller.E1w00z/700/file0" dev="sda1" ino=15843 res=1 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium FAT-fs (loop2): Unrecognized mount option "00000000000000000000" or missing value audit: type=1804 audit(1603235852.275:69): pid=24026 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-testdir084923325/syzkaller.E1w00z/700/file0" dev="sda1" ino=15843 res=1 VFS: could not find a valid V7 on loop2. EXT4-fs (loop2): warning: checktime reached, running e2fsck is recommended EXT4-fs (loop2): mounted filesystem without journal. Opts: nodelalloc,errors=continue program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 netlink: 'syz-executor.2': attribute type 29 has an invalid length. team0: Device ipvlan1 failed to register rx_handler