================================================================================ 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: 26954 Comm: syz-executor.0 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_ipportnet_create.cold+0x1a/0x1f 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:00007fcde0a8dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000029b40 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffcfc50adef R14: 00007fcde0a8e9c0 R15: 000000000118bf2c ================================================================================ FAT-fs (loop4): invalid media value (0x00) FAT-fs (loop4): Can't find a valid FAT filesystem FAT-fs (loop4): invalid media value (0x00) FAT-fs (loop4): Can't find a valid FAT filesystem netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. FAT-fs (loop4): invalid media value (0x00) FAT-fs (loop4): Can't find a valid FAT filesystem netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. FAT-fs (loop4): invalid media value (0x00) FAT-fs (loop4): Can't find a valid FAT filesystem FAT-fs (loop4): bogus number of FAT sectors FAT-fs (loop4): Can't find a valid FAT filesystem FAT-fs (loop4): bogus number of FAT sectors FAT-fs (loop4): Can't find a valid FAT filesystem 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 (loop4): bogus number of FAT sectors FAT-fs (loop4): Can't find a valid FAT filesystem tmpfs: Bad value 'bind:-' for mount option 'mpol' tmpfs: Bad value 'bind:-' for mount option 'mpol' overlayfs: failed to resolve './file1': -2 overlayfs: failed to resolve './file1': -2 overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: failed to resolve './file1': -2 overlayfs: failed to resolve './file1': -2 audit: type=1800 audit(5898089815.883:46): pid=27470 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=16114 res=0 tmpfs: Bad value 'default:' for mount option 'mpol' audit: type=1800 audit(5898089817.033:47): pid=27584 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=15918 res=0 tmpfs: Bad value 'default:' for mount option 'mpol' overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: failed to resolve './file1': -2 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: 'file0' not a directory overlayfs: failed to resolve './file1': -2 overlayfs: './file0' not a directory SELinux: unrecognized netlink message: protocol=9 nlmsg_type=20 sclass=netlink_audit_socket pid=27662 comm=syz-executor.4 overlayfs: './file0' not a directory overlayfs: './file0' not a directory overlayfs: './file0' not a directory SELinux: security_context_str_to_sid(sysadm_u) failed for (dev tmpfs, type tmpfs) errno=-22 SELinux: security_context_str_to_sid(sysadm_u) failed for (dev tmpfs, type tmpfs) errno=-22 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. audit: type=1800 audit(5898089819.303:48): pid=27711 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15983 res=0 audit: type=1800 audit(5898089819.673:49): pid=27727 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15842 res=0 audit: type=1800 audit(5898089819.943:50): pid=27757 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15934 res=0