overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. ================================================================================ UBSAN: Undefined behaviour in net/sched/act_police.c:161:27 shift exponent 45 is too large for 32-bit type 'int' CPU: 0 PID: 8207 Comm: syz-executor.3 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 tcf_police_init.cold+0x34/0x86 net/sched/act_police.c:161 tcf_action_init_1+0x962/0xc40 net/sched/act_api.c:870 tcf_action_init+0x2c3/0x490 net/sched/act_api.c:933 tcf_action_add+0xd9/0x360 net/sched/act_api.c:1314 tc_ctl_action+0x337/0x417 net/sched/act_api.c:1369 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+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: 0033:0x45dd99 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:00007f56fbff8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027f40 RCX: 000000000045dd99 RDX: 010efe10675dec16 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fffc41f3c4f R14: 00007f56fbff99c0 R15: 000000000118bf2c ================================================================================ audit: type=1804 audit(1601518044.198:10): pid=8226 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir483100469/syzkaller.qSzWLc/7/bus" dev="sda1" ino=15765 res=1 netlink: 'syz-executor.2': attribute type 8 has an invalid length. overlayfs: maximum fs stacking depth exceeded audit: type=1804 audit(1601518044.228:11): pid=8227 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir483100469/syzkaller.qSzWLc/7/bus" dev="sda1" ino=15765 res=1 netlink: 'syz-executor.2': attribute type 8 has an invalid length. overlayfs: filesystem on './bus' not supported as upperdir audit: type=1804 audit(1601518044.248:12): pid=8209 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-testdir483100469/syzkaller.qSzWLc/7/bus" dev="sda1" ino=15765 res=1 audit: type=1804 audit(1601518044.398:13): pid=8235 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-testdir483100469/syzkaller.qSzWLc/8/bus" dev="sda1" ino=15785 res=1 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 3092 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 3092 bytes leftover after parsing attributes in process `syz-executor.3'. nla_parse: 4 callbacks suppressed netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 3092 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1800 audit(1601518047.248:14): pid=8978 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="overlay" ino=15814 res=0 overlayfs: filesystem on './file0' not supported as upperdir ntfs: (device loop4): parse_options(): Unrecognized mount option dont_appraise. audit: type=1800 audit(1601518047.318:15): pid=8996 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="overlay" ino=15814 res=0 ntfs: (device loop4): parse_options(): Unrecognized mount option . netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 3092 bytes leftover after parsing attributes in process `syz-executor.3'. ntfs: (device loop4): parse_options(): Unrecognized mount option dont_appraise. L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) ptrace attach of "/root/syz-executor.4"[9563] was attempted by "/root/syz-executor.4"[9567] CUSE: info not properly terminated EXT4-fs (sda1): re-mounted. Opts: (null) CUSE: info not properly terminated EXT4-fs (sda1): re-mounted. Opts: (null) IPVS: sync thread started: state = MASTER, mcast_ifn = bond_slave_1, syncid = 1, id = 0 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready UDF-fs: warning (device loop1): udf_load_vrs: No VRS found IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready UDF-fs: Scanning with blocksize 512 failed IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready