audit: type=1326 audit(1603017097.265:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8140 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. ================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 253 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 6515 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 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] ip_finish_output2+0xc04/0x1640 net/ipv4/ip_output.c:230 ip_finish_output+0x88e/0xd80 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x203/0x650 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:455 [inline] ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x63e/0xa30 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:865 [inline] geneve_xmit+0xf46/0x2ac0 drivers/net/geneve.c:938 __netdev_start_xmit include/linux/netdevice.h:4333 [inline] netdev_start_xmit include/linux/netdevice.h:4347 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x960 net/core/dev.c:3272 __dev_queue_xmit+0x276a/0x2ec0 net/core/dev.c:3838 neigh_resolve_output+0x55a/0x950 net/core/neighbour.c:1374 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0x1184/0x2370 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] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xa6b/0x1860 net/ipv6/ndisc.c:491 ndisc_send_rs+0x131/0x6a0 net/ipv6/ndisc.c:685 addrconf_rs_timer+0x2d9/0x640 net/ipv6/addrconf.c:3834 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0x86/0x2430 arch/x86/kernel/unwind_orc.c:404 Code: 00 00 00 48 89 b4 24 98 00 00 00 31 f6 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 96 0b 00 00 41 8b 2f 31 c0 85 ed 75 3b <48> ba 00 00 00 00 00 fc ff df 48 c7 04 13 00 00 00 00 48 8b 9c 24 RSP: 0018:ffff88808c617670 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: 1ffff110118c2ed6 RCX: 0000000000000000 RDX: 0000000080000000 RSI: ffff88808c617600 RDI: 0000000000000001 RBP: ffff88808c617ef8 R08: 0000000000000001 R09: 0000000000000001 R10: ffff88808c6177a7 R11: 0000000000000001 R12: ffff88808c610000 R13: ffff88808c61777d R14: ffff88808c617798 R15: ffff88808c617748 __save_stack_trace+0x83/0x100 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node_trace+0x13c/0x4d0 mm/slab.c:3666 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node+0x38/0x70 mm/slab.c:3696 kmalloc_node include/linux/slab.h:557 [inline] __vmalloc_area_node+0x15f/0x790 mm/vmalloc.c:1677 __vmalloc_node_range mm/vmalloc.c:1753 [inline] __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags mm/vmalloc.c:1818 [inline] vzalloc+0x10a/0x1a0 mm/vmalloc.c:1857 alloc_counters net/ipv4/netfilter/ip_tables.c:803 [inline] copy_entries_to_user net/ipv4/netfilter/ip_tables.c:825 [inline] get_entries net/ipv4/netfilter/ip_tables.c:1027 [inline] do_ipt_get_ctl+0x4ed/0x8e0 net/ipv4/netfilter/ip_tables.c:1703 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122 ip_getsockopt net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3616 __sys_getsockopt+0x135/0x210 net/socket.c:1938 __do_sys_getsockopt net/socket.c:1949 [inline] __se_sys_getsockopt net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:1946 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46096a Code: b8 34 01 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ed 88 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ca 88 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007ffe815171b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 00007ffe815171e0 RCX: 000000000046096a RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000074de60 R08: 00007ffe815171dc R09: 0000000000004000 R10: 00007ffe81517240 R11: 0000000000000202 R12: 00007ffe81517240 R13: 0000000000000003 R14: 000000000074c360 R15: 0000000000000000 ================================================================================ audit: type=1326 audit(1603017098.375:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8203 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 overlayfs: failed to resolve './file0': -2 overlayfs: unrecognized mount option "dont_measure" or missing value overlayfs: failed to resolve './file0': -2 xt_limit: Overflow, try lower: 0/0 xt_limit: Overflow, try lower: 0/0 overlayfs: unrecognized mount option "dont_measure" or missing value audit: type=1326 audit(1603017099.265:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8279 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 overlayfs: unrecognized mount option "dont_measure" or missing value hfs: unable to parse mount options netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. Enabling of bearer rejected, illegal name audit: type=1326 audit(1603017100.145:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8346 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. Enabling of bearer rejected, illegal name netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=114 sclass=netlink_route_socket pid=8417 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=114 sclass=netlink_route_socket pid=8418 comm=syz-executor.3 SQUASHFS error: zstd decompression error: 2 SQUASHFS error: zstd decompression failed, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0x81 SQUASHFS error: Unable to read metadata cache entry [81] SQUASHFS error: Unable to read inode 0x11a SQUASHFS error: zstd decompression error: 2 SQUASHFS error: zstd decompression failed, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0x81 SQUASHFS error: Unable to read metadata cache entry [81] SQUASHFS error: Unable to read inode 0x11a audit: type=1326 audit(1603017103.005:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8487 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. 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. audit: type=1326 audit(1603017103.985:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8534 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue audit: type=1400 audit(1603017104.725:17): avc: denied { create } for pid=8588 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 netlink: 100 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1400 audit(1603017104.745:18): avc: denied { name_bind } for pid=8588 comm="syz-executor.2" src=20000 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 netlink: 100 bytes leftover after parsing attributes in process `syz-executor.3'. FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): This doesn't look like a DOS 1.x volume; DOS 2.x BPB is non-zero FAT-fs (loop1): Can't find a valid FAT filesystem audit: type=1400 audit(1603017104.745:19): avc: denied { node_bind } for pid=8588 comm="syz-executor.2" saddr=::1 src=20000 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1603017104.745:20): avc: denied { name_connect } for pid=8588 comm="syz-executor.2" dest=20000 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1326 audit(1603017104.875:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8591 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): This doesn't look like a DOS 1.x volume; DOS 2.x BPB is non-zero FAT-fs (loop1): Can't find a valid FAT filesystem audit: type=1326 audit(1603017105.835:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8661 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 audit: type=1326 audit(1603017106.725:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8722 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 *** Guest State *** CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7 CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 CR3 = 0x0000000000000000 RSP = 0x0000000000000f80 RIP = 0x0000000000000000 RFLAGS=0x00000002 DR7 = 0x0000000000000400 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0x0000, attr=0x0009b, limit=0x0000ffff, base=0x0000000000000000 DS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 SS: sel=0x0000, attr=0x00081, limit=0x0000ffff, base=0x0000000000000000 ES: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 FS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GDTR: limit=0x000007ff, base=0x0000000000001000 LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800 IDTR: limit=0x0000ffff, base=0x0000000000000000 TR: sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** RIP = 0xffffffff811ca2ea RSP = 0xffff88804b49f878 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f2d208b7700 GSBase=ffff8880ae200000 TRBase=fffffe0000003000 GDTBase=fffffe0000001000 IDTBase=fffffe0000000000 CR0=0000000080050033 CR3=0000000096955000 CR4=00000000001426f0 Sysenter RSP=fffffe0000003000 CS:RIP=0010:ffffffff87c013e0 EFER = 0x0000000000000d01 PAT = 0x0407050600070106 *** Control State *** PinBased=0000003f CPUBased=b5986dfa SecondaryExec=000000ea EntryControls=0000d1ff ExitControls=002fefff ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=80000202 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xffffffa1410c431f EPT pointer = 0x00000000a710201e Virtual processor ID = 0x0001