[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. 2021/09/09 07:15:29 parsed 1 programs 2021/09/09 07:15:29 executed programs: 0 syzkaller login: [ 1081.895336][ T6577] chnl_net:caif_netlink_parms(): no params data found [ 1081.993422][ T6577] bridge0: port 1(bridge_slave_0) entered blocking state [ 1082.002897][ T6577] bridge0: port 1(bridge_slave_0) entered disabled state [ 1082.011699][ T6577] device bridge_slave_0 entered promiscuous mode [ 1082.022832][ T6577] bridge0: port 2(bridge_slave_1) entered blocking state [ 1082.029922][ T6577] bridge0: port 2(bridge_slave_1) entered disabled state [ 1082.038738][ T6577] device bridge_slave_1 entered promiscuous mode [ 1082.071153][ T6577] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1082.082640][ T6577] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1082.115902][ T6577] team0: Port device team_slave_0 added [ 1082.123533][ T6577] team0: Port device team_slave_1 added [ 1082.149724][ T6577] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1082.157205][ T6577] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1082.183128][ T6577] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1082.195775][ T6577] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1082.202796][ T6577] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1082.228727][ T6577] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1082.267025][ T6577] device hsr_slave_0 entered promiscuous mode [ 1082.273660][ T6577] device hsr_slave_1 entered promiscuous mode [ 1082.399645][ T6577] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1082.413084][ T6577] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1082.425176][ T6577] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1082.434402][ T6577] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1082.462570][ T6577] bridge0: port 2(bridge_slave_1) entered blocking state [ 1082.469718][ T6577] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1082.477948][ T6577] bridge0: port 1(bridge_slave_0) entered blocking state [ 1082.485170][ T6577] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1082.534769][ T6577] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1082.548204][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1082.560233][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 1082.569845][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 1082.581339][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1082.595428][ T6577] 8021q: adding VLAN 0 to HW filter on device team0 [ 1082.606612][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1082.615859][ T20] bridge0: port 1(bridge_slave_0) entered blocking state [ 1082.622948][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1082.635488][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1082.644655][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 1082.651762][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1082.681326][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1082.691813][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1082.702493][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1082.710900][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1082.719521][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1082.731382][ T6577] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1082.750541][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1082.757971][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1082.771461][ T6577] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1082.793694][ T6552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1082.813100][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1082.823202][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1082.831713][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1082.841795][ T6577] device veth0_vlan entered promiscuous mode [ 1082.857958][ T6577] device veth1_vlan entered promiscuous mode [ 1082.884179][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1082.892344][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1082.904632][ T6552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1082.914382][ T6552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1082.927151][ T6577] device veth0_macvtap entered promiscuous mode [ 1082.938839][ T6577] device veth1_macvtap entered promiscuous mode [ 1082.956493][ T6577] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1082.964089][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1082.972431][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 1082.980954][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1082.989476][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1083.002782][ T6577] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1083.013015][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1083.021778][ T6911] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1083.031696][ T6577] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1083.041949][ T6577] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1083.056108][ T6577] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1083.067292][ T6577] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1083.167113][ T6814] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1083.176361][ T6814] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1083.194151][ T6910] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1083.224272][ T6814] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1083.233069][ T6814] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1083.243132][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1083.741762][ T20] Bluetooth: hci0: command 0x0409 tx timeout 2021/09/09 07:15:34 executed programs: 58 [ 1085.810484][ T20] Bluetooth: hci0: command 0x041b tx timeout [ 1087.900648][ T6552] Bluetooth: hci0: command 0x040f tx timeout [ 1089.979437][ T6552] Bluetooth: hci0: command 0x0419 tx timeout 2021/09/09 07:15:39 executed programs: 191 2021/09/09 07:15:44 executed programs: 329 2021/09/09 07:15:49 executed programs: 469 2021/09/09 07:15:54 executed programs: 607 2021/09/09 07:15:59 executed programs: 754 [ 1115.488117][ T1362] ieee802154 phy0 wpan0: encryption failed: -22 [ 1115.494895][ T1362] ieee802154 phy1 wpan1: encryption failed: -22 2021/09/09 07:16:04 executed programs: 891 2021/09/09 07:16:09 executed programs: 1031 2021/09/09 07:16:14 executed programs: 1155 2021/09/09 07:16:19 executed programs: 1290 2021/09/09 07:16:24 executed programs: 1428 2021/09/09 07:16:29 executed programs: 1567 2021/09/09 07:16:34 executed programs: 1703 2021/09/09 07:16:39 executed programs: 1839 2021/09/09 07:16:44 executed programs: 1974 2021/09/09 07:16:50 executed programs: 2226 2021/09/09 07:16:55 executed programs: 2506 [ 1169.727533][T16206] ================================================================== [ 1169.735845][T16206] BUG: KASAN: use-after-free in memcmp+0x18f/0x1c0 [ 1169.742415][T16206] Read of size 1 at addr ffff88806ef7e690 by task syz-executor.0/16206 [ 1169.750634][T16206] [ 1169.752943][T16206] CPU: 1 PID: 16206 Comm: syz-executor.0 Not tainted 5.14.0-syzkaller #0 [ 1169.761375][T16206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1169.771417][T16206] Call Trace: [ 1169.774774][T16206] dump_stack_lvl+0xcd/0x134 [ 1169.779414][T16206] print_address_description.constprop.0.cold+0x6c/0x309 [ 1169.786436][T16206] ? memcmp+0x18f/0x1c0 [ 1169.790617][T16206] ? memcmp+0x18f/0x1c0 [ 1169.794758][T16206] kasan_report.cold+0x83/0xdf [ 1169.799510][T16206] ? memcmp+0x18f/0x1c0 [ 1169.803656][T16206] memcmp+0x18f/0x1c0 [ 1169.807646][T16206] nla_strcmp+0xf2/0x130 [ 1169.811937][T16206] nft_table_lookup.part.0+0x1a2/0x460 [ 1169.817428][T16206] nf_tables_getset+0x1b3/0x860 [ 1169.822287][T16206] ? nf_tables_fill_set+0x1680/0x1680 [ 1169.827645][T16206] ? nla_get_range_signed+0x520/0x520 [ 1169.833010][T16206] ? nfnetlink_rcv_msg+0x3fe/0x13f0 [ 1169.838234][T16206] ? lock_downgrade+0x6e0/0x6e0 [ 1169.843186][T16206] ? mark_lock+0xef/0x17b0 [ 1169.847604][T16206] ? __nla_parse+0x3d/0x50 [ 1169.852031][T16206] ? nf_tables_fill_set+0x1680/0x1680 [ 1169.857390][T16206] nfnetlink_rcv_msg+0x659/0x13f0 [ 1169.862411][T16206] ? nfnetlink_net_init+0x380/0x380 [ 1169.867626][T16206] ? find_held_lock+0x2d/0x110 [ 1169.872383][T16206] netlink_rcv_skb+0x153/0x420 [ 1169.877179][T16206] ? nfnetlink_net_init+0x380/0x380 [ 1169.882369][T16206] ? netlink_ack+0xa60/0xa60 [ 1169.886950][T16206] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1169.893230][T16206] ? ns_capable+0xd9/0x100 [ 1169.897657][T16206] nfnetlink_rcv+0x1ac/0x420 [ 1169.902238][T16206] ? nfnetlink_rcv_batch+0x25f0/0x25f0 [ 1169.907685][T16206] ? netlink_deliver_tap+0x1b1/0xc30 [ 1169.912974][T16206] netlink_unicast+0x533/0x7d0 [ 1169.917888][T16206] ? netlink_attachskb+0x890/0x890 [ 1169.923000][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1169.929255][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1169.935497][T16206] ? __phys_addr_symbol+0x2c/0x70 [ 1169.940564][T16206] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 1169.946281][T16206] ? __check_object_size+0x16e/0x3f0 [ 1169.951625][T16206] netlink_sendmsg+0x86d/0xdb0 [ 1169.956403][T16206] ? netlink_unicast+0x7d0/0x7d0 [ 1169.961355][T16206] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1169.967600][T16206] ? netlink_unicast+0x7d0/0x7d0 [ 1169.972534][T16206] sock_sendmsg+0xcf/0x120 [ 1169.976997][T16206] ____sys_sendmsg+0x6e8/0x810 [ 1169.981765][T16206] ? kernel_sendmsg+0x50/0x50 [ 1169.986517][T16206] ? do_recvmmsg+0x6d0/0x6d0 [ 1169.991100][T16206] ? lock_chain_count+0x20/0x20 [ 1169.995938][T16206] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1170.001929][T16206] ___sys_sendmsg+0xf3/0x170 [ 1170.006515][T16206] ? sendmsg_copy_msghdr+0x160/0x160 [ 1170.011804][T16206] ? __fget_files+0x21b/0x3e0 [ 1170.016511][T16206] ? lock_downgrade+0x6e0/0x6e0 [ 1170.021355][T16206] ? __fget_files+0x23d/0x3e0 [ 1170.026027][T16206] ? __fget_light+0xea/0x280 [ 1170.030604][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1170.036836][T16206] __sys_sendmsg+0xe5/0x1b0 [ 1170.041329][T16206] ? __sys_sendmsg_sock+0x30/0x30 [ 1170.046351][T16206] ? syscall_enter_from_user_mode+0x21/0x70 [ 1170.052277][T16206] do_syscall_64+0x35/0xb0 [ 1170.056694][T16206] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1170.062615][T16206] RIP: 0033:0x4665f9 [ 1170.066497][T16206] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 1170.086104][T16206] RSP: 002b:00007f34c684e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1170.094678][T16206] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 [ 1170.102640][T16206] RDX: 0000000000000000 RSI: 0000000020000d80 RDI: 0000000000000004 [ 1170.110595][T16206] RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 [ 1170.118551][T16206] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 1170.126516][T16206] R13: 00007ffdd7170d4f R14: 00007f34c684e300 R15: 0000000000022000 [ 1170.134488][T16206] [ 1170.136811][T16206] Allocated by task 16206: [ 1170.141218][T16206] kasan_save_stack+0x1b/0x40 [ 1170.145944][T16206] __kasan_kmalloc+0xa4/0xd0 [ 1170.151048][T16206] nla_strdup+0xc8/0x150 [ 1170.155294][T16206] nf_tables_newtable+0xe5e/0x1b40 [ 1170.160399][T16206] nfnetlink_rcv_batch+0x1710/0x25f0 [ 1170.165680][T16206] nfnetlink_rcv+0x3af/0x420 [ 1170.170256][T16206] netlink_unicast+0x533/0x7d0 [ 1170.175006][T16206] netlink_sendmsg+0x86d/0xdb0 [ 1170.179756][T16206] sock_sendmsg+0xcf/0x120 [ 1170.184160][T16206] ____sys_sendmsg+0x6e8/0x810 [ 1170.188908][T16206] ___sys_sendmsg+0xf3/0x170 [ 1170.193486][T16206] __sys_sendmsg+0xe5/0x1b0 [ 1170.198077][T16206] do_syscall_64+0x35/0xb0 [ 1170.202491][T16206] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1170.208398][T16206] [ 1170.210726][T16206] Freed by task 16205: [ 1170.214779][T16206] kasan_save_stack+0x1b/0x40 [ 1170.219455][T16206] kasan_set_track+0x1c/0x30 [ 1170.224130][T16206] kasan_set_free_info+0x20/0x30 [ 1170.229061][T16206] __kasan_slab_free+0xff/0x130 [ 1170.233898][T16206] slab_free_freelist_hook+0x81/0x190 [ 1170.239326][T16206] kfree+0xe4/0x530 [ 1170.243137][T16206] nf_tables_table_destroy+0xd2/0x1b0 [ 1170.248522][T16206] __nft_release_table+0xabc/0xe30 [ 1170.253624][T16206] nft_rcv_nl_event+0x4af/0x590 [ 1170.258470][T16206] notifier_call_chain+0xb5/0x200 [ 1170.263543][T16206] blocking_notifier_call_chain+0x67/0x90 [ 1170.270549][T16206] netlink_release+0xcb8/0x1dd0 [ 1170.275389][T16206] __sock_release+0xcd/0x280 [ 1170.279965][T16206] sock_close+0x18/0x20 [ 1170.284103][T16206] __fput+0x288/0x9f0 [ 1170.288072][T16206] task_work_run+0xdd/0x1a0 [ 1170.292603][T16206] exit_to_user_mode_prepare+0x27e/0x290 [ 1170.298242][T16206] syscall_exit_to_user_mode+0x19/0x60 [ 1170.303686][T16206] do_syscall_64+0x42/0xb0 [ 1170.308085][T16206] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1170.313971][T16206] [ 1170.316280][T16206] The buggy address belongs to the object at ffff88806ef7e690 [ 1170.316280][T16206] which belongs to the cache kmalloc-8 of size 8 [ 1170.329973][T16206] The buggy address is located 0 bytes inside of [ 1170.329973][T16206] 8-byte region [ffff88806ef7e690, ffff88806ef7e698) [ 1170.342878][T16206] The buggy address belongs to the page: [ 1170.348483][T16206] page:ffffea0001bbdf80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88806ef7ee10 pfn:0x6ef7e [ 1170.359922][T16206] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 1170.367458][T16206] raw: 00fff00000000200 ffffea00004deb00 0000000300000003 ffff888010c41280 [ 1170.376025][T16206] raw: ffff88806ef7ee10 0000000080660054 00000001ffffffff 0000000000000000 [ 1170.384608][T16206] page dumped because: kasan: bad access detected [ 1170.391008][T16206] page_owner tracks the page as allocated [ 1170.396705][T16206] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 6577, ts 1160917309588, free_ts 1160767773568 [ 1170.413095][T16206] get_page_from_freelist+0xa72/0x2f80 [ 1170.418567][T16206] __alloc_pages+0x1b2/0x500 [ 1170.423159][T16206] alloc_pages+0x1a7/0x300 [ 1170.427563][T16206] new_slab+0x319/0x490 [ 1170.432083][T16206] ___slab_alloc+0x921/0xfe0 [ 1170.436663][T16206] __slab_alloc.constprop.0+0x4d/0xa0 [ 1170.442024][T16206] __kmalloc_node+0x2d2/0x370 [ 1170.446686][T16206] __vmalloc_node_range+0x5ec/0x9e0 [ 1170.451867][T16206] vzalloc+0x67/0x80 [ 1170.455759][T16206] do_arpt_get_ctl+0x5f6/0x8f0 [ 1170.460561][T16206] nf_getsockopt+0x72/0xd0 [ 1170.464968][T16206] ip_getsockopt+0x164/0x1c0 [ 1170.469594][T16206] tcp_getsockopt+0x86/0xd0 [ 1170.474099][T16206] __sys_getsockopt+0x21f/0x5f0 [ 1170.478960][T16206] __x64_sys_getsockopt+0xba/0x150 [ 1170.484074][T16206] do_syscall_64+0x35/0xb0 [ 1170.488483][T16206] page last free stack trace: [ 1170.493152][T16206] free_pcp_prepare+0x2c5/0x780 [ 1170.497993][T16206] free_unref_page_list+0x1a1/0x1010 [ 1170.503265][T16206] release_pages+0x830/0x20b0 [ 1170.507984][T16206] tlb_finish_mmu+0x165/0x8c0 [ 1170.512664][T16206] exit_mmap+0x1ea/0x620 [ 1170.516903][T16206] __mmput+0x122/0x4b0 [ 1170.521000][T16206] mmput+0x58/0x60 [ 1170.524719][T16206] do_exit+0xabc/0x2a30 [ 1170.528867][T16206] do_group_exit+0x125/0x310 [ 1170.533456][T16206] get_signal+0x47f/0x2160 [ 1170.537869][T16206] arch_do_signal_or_restart+0x2a9/0x1c40 [ 1170.543634][T16206] exit_to_user_mode_prepare+0x17d/0x290 [ 1170.549338][T16206] syscall_exit_to_user_mode+0x19/0x60 [ 1170.554780][T16206] do_syscall_64+0x42/0xb0 [ 1170.559354][T16206] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1170.565242][T16206] [ 1170.567546][T16206] Memory state around the buggy address: [ 1170.573162][T16206] ffff88806ef7e580: fc fc fc fc fb fc fc fc fc fb fc fc fc fc fb fc [ 1170.581221][T16206] ffff88806ef7e600: fc fc fc fb fc fc fc fc fb fc fc fc fc fb fc fc [ 1170.589283][T16206] >ffff88806ef7e680: fc fc fa fc fc fc fc fa fc fc fc fc fa fc fc fc [ 1170.597323][T16206] ^ [ 1170.601892][T16206] ffff88806ef7e700: fc fa fc fc fc fc fa fc fc fc fc fa fc fc fc fc [ 1170.609962][T16206] ffff88806ef7e780: fa fc fc fc fc fa fc fc fc fc fa fc fc fc fc fa [ 1170.618002][T16206] ================================================================== [ 1170.626214][T16206] Disabling lock debugging due to kernel taint [ 1170.639901][T16206] Kernel panic - not syncing: panic_on_warn set ... [ 1170.646509][T16206] CPU: 1 PID: 16206 Comm: syz-executor.0 Tainted: G B 5.14.0-syzkaller #0 [ 1170.656309][T16206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1170.666354][T16206] Call Trace: [ 1170.669626][T16206] dump_stack_lvl+0xcd/0x134 [ 1170.674217][T16206] panic+0x2b0/0x6dd [ 1170.678134][T16206] ? __warn_printk+0xf3/0xf3 [ 1170.682727][T16206] ? preempt_schedule_common+0x59/0xc0 [ 1170.688199][T16206] ? memcmp+0x18f/0x1c0 [ 1170.692351][T16206] ? preempt_schedule_thunk+0x16/0x18 [ 1170.697742][T16206] ? trace_hardirqs_on+0x38/0x1c0 [ 1170.702805][T16206] ? trace_hardirqs_on+0x51/0x1c0 [ 1170.707833][T16206] ? memcmp+0x18f/0x1c0 [ 1170.711999][T16206] ? memcmp+0x18f/0x1c0 [ 1170.716152][T16206] end_report.cold+0x63/0x6f [ 1170.720767][T16206] kasan_report.cold+0x71/0xdf [ 1170.725540][T16206] ? memcmp+0x18f/0x1c0 [ 1170.729710][T16206] memcmp+0x18f/0x1c0 [ 1170.733701][T16206] nla_strcmp+0xf2/0x130 [ 1170.737951][T16206] nft_table_lookup.part.0+0x1a2/0x460 [ 1170.743429][T16206] nf_tables_getset+0x1b3/0x860 [ 1170.748278][T16206] ? nf_tables_fill_set+0x1680/0x1680 [ 1170.753650][T16206] ? nla_get_range_signed+0x520/0x520 [ 1170.759024][T16206] ? nfnetlink_rcv_msg+0x3fe/0x13f0 [ 1170.764235][T16206] ? lock_downgrade+0x6e0/0x6e0 [ 1170.769082][T16206] ? mark_lock+0xef/0x17b0 [ 1170.773495][T16206] ? __nla_parse+0x3d/0x50 [ 1170.777915][T16206] ? nf_tables_fill_set+0x1680/0x1680 [ 1170.783284][T16206] nfnetlink_rcv_msg+0x659/0x13f0 [ 1170.788327][T16206] ? nfnetlink_net_init+0x380/0x380 [ 1170.793534][T16206] ? find_held_lock+0x2d/0x110 [ 1170.798300][T16206] netlink_rcv_skb+0x153/0x420 [ 1170.803060][T16206] ? nfnetlink_net_init+0x380/0x380 [ 1170.808258][T16206] ? netlink_ack+0xa60/0xa60 [ 1170.812845][T16206] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1170.819098][T16206] ? ns_capable+0xd9/0x100 [ 1170.823523][T16206] nfnetlink_rcv+0x1ac/0x420 [ 1170.828128][T16206] ? nfnetlink_rcv_batch+0x25f0/0x25f0 [ 1170.833584][T16206] ? netlink_deliver_tap+0x1b1/0xc30 [ 1170.838868][T16206] netlink_unicast+0x533/0x7d0 [ 1170.843653][T16206] ? netlink_attachskb+0x890/0x890 [ 1170.848770][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1170.855033][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1170.861302][T16206] ? __phys_addr_symbol+0x2c/0x70 [ 1170.866328][T16206] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 1170.872045][T16206] ? __check_object_size+0x16e/0x3f0 [ 1170.877335][T16206] netlink_sendmsg+0x86d/0xdb0 [ 1170.882115][T16206] ? netlink_unicast+0x7d0/0x7d0 [ 1170.887064][T16206] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1170.893305][T16206] ? netlink_unicast+0x7d0/0x7d0 [ 1170.898236][T16206] sock_sendmsg+0xcf/0x120 [ 1170.902650][T16206] ____sys_sendmsg+0x6e8/0x810 [ 1170.907416][T16206] ? kernel_sendmsg+0x50/0x50 [ 1170.912089][T16206] ? do_recvmmsg+0x6d0/0x6d0 [ 1170.916690][T16206] ? lock_chain_count+0x20/0x20 [ 1170.921536][T16206] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1170.927601][T16206] ___sys_sendmsg+0xf3/0x170 [ 1170.932192][T16206] ? sendmsg_copy_msghdr+0x160/0x160 [ 1170.937479][T16206] ? __fget_files+0x21b/0x3e0 [ 1170.942152][T16206] ? lock_downgrade+0x6e0/0x6e0 [ 1170.947003][T16206] ? __fget_files+0x23d/0x3e0 [ 1170.951676][T16206] ? __fget_light+0xea/0x280 [ 1170.956259][T16206] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1170.962501][T16206] __sys_sendmsg+0xe5/0x1b0 [ 1170.967005][T16206] ? __sys_sendmsg_sock+0x30/0x30 [ 1170.972033][T16206] ? syscall_enter_from_user_mode+0x21/0x70 [ 1170.977929][T16206] do_syscall_64+0x35/0xb0 [ 1170.982685][T16206] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1170.988584][T16206] RIP: 0033:0x4665f9 [ 1170.992470][T16206] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 1171.012085][T16206] RSP: 002b:00007f34c684e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1171.020491][T16206] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 [ 1171.028455][T16206] RDX: 0000000000000000 RSI: 0000000020000d80 RDI: 0000000000000004 [ 1171.036435][T16206] RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 [ 1171.044396][T16206] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 1171.052378][T16206] R13: 00007ffdd7170d4f R14: 00007f34c684e300 R15: 0000000000022000 [ 1171.060409][T16206] Kernel Offset: disabled [ 1171.064721][T16206] Rebooting in 86400 seconds..