[ 39.790387] audit: type=1800 audit(1577147731.470:32): pid=7632 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 45.566226] kauditd_printk_skb: 2 callbacks suppressed [ 45.566242] audit: type=1400 audit(1577147737.250:35): avc: denied { map } for pid=7805 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.254' (ECDSA) to the list of known hosts. [ 52.115389] audit: type=1400 audit(1577147743.800:36): avc: denied { map } for pid=7817 comm="syz-executor549" path="/root/syz-executor549201941" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 52.137937] IPVS: ftp: loaded support on port[0] = 21 [ 52.168320] audit: type=1400 audit(1577147743.850:37): avc: denied { create } for pid=7818 comm="syz-executor549" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.193218] audit: type=1400 audit(1577147743.850:38): avc: denied { write } for pid=7818 comm="syz-executor549" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.217890] audit: type=1400 audit(1577147743.850:39): avc: denied { read } for pid=7818 comm="syz-executor549" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 52.274043] chnl_net:caif_netlink_parms(): no params data found [ 52.307193] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.313742] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.321180] device bridge_slave_0 entered promiscuous mode [ 52.328573] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.335054] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.342151] device bridge_slave_1 entered promiscuous mode [ 52.360162] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.369315] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.385267] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.392769] team0: Port device team_slave_0 added [ 52.398473] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.405708] team0: Port device team_slave_1 added [ 52.411030] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.418602] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.466550] device hsr_slave_0 entered promiscuous mode [ 52.525085] device hsr_slave_1 entered promiscuous mode [ 52.565231] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.572306] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.586683] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.593083] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.599987] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.606373] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.639047] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 52.646424] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.655140] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.663574] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.682847] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.691257] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.699062] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.708869] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.715234] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.724129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.732035] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.738417] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.754941] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.762749] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.769125] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.776757] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.784554] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.794630] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.804752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.817624] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.828510] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.835425] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 52.842479] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.854691] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 52.865098] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.871436] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.878751] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.888601] kasan: CONFIG_KASAN_INLINE enabled [ 52.893259] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 52.900661] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 52.906975] CPU: 0 PID: 7818 Comm: syz-executor549 Not tainted 4.19.91-syzkaller #0 [ 52.914820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.924167] RIP: 0010:xfrmi_decode_session+0x153/0x790 [ 52.929427] Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 d9 05 00 00 4c 8b 23 e8 0b 52 0c fb e8 36 c8 1e [ 52.948311] RSP: 0018:ffff888095897178 EFLAGS: 00010246 [ 52.953675] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff864c8142 [ 52.960927] RDX: 0000000000000000 RSI: ffffffff864c7b7c RDI: ffff888089859788 [ 52.968177] RBP: ffff8880958971a0 R08: ffff88807e206640 R09: ffffed1015d04733 [ 52.975428] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: ffff888089859780 [ 52.982691] R13: 0000000000000039 R14: 000000000000000b R15: ffff888095a88500 [ 52.989946] FS: 0000000000c8e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 52.998153] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.004016] CR2: 0000000020000080 CR3: 000000009022a000 CR4: 00000000001406f0 [ 53.011267] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.018519] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.025767] Call Trace: [ 53.028342] __xfrm_policy_check+0x1f6/0x2550 [ 53.032836] ? kasan_check_read+0x11/0x20 [ 53.036966] ? __xfrm_route_forward+0x810/0x810 [ 53.041620] ? nf_ct_deliver_cached_events+0x216/0x6e0 [ 53.046886] ? __lock_is_held+0xb6/0x140 [ 53.050932] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.056449] ? ip_tunnel_lookup+0xa0f/0xe00 [ 53.060752] vti_input+0x50f/0x770 [ 53.064273] vti_rcv+0x10b/0x140 [ 53.067616] xfrm4_esp_rcv+0xd2/0x230 [ 53.071396] ip_local_deliver_finish+0x27e/0xc30 [ 53.076144] ip_local_deliver+0x1e9/0x520 [ 53.080271] ? ip_call_ra_chain+0x5c0/0x5c0 [ 53.084579] ? ip_sublist_rcv_finish+0x310/0x310 [ 53.089314] ? ip_rcv_finish_core.isra.0+0x803/0x1af0 [ 53.094499] ip_rcv_finish+0x1d9/0x2e0 [ 53.098379] ip_rcv+0xe8/0x3f0 [ 53.101556] ? ip_local_deliver+0x520/0x520 [ 53.105862] ? ip_rcv_finish_core.isra.0+0x1af0/0x1af0 [ 53.111119] ? ip_local_deliver+0x520/0x520 [ 53.115440] __netif_receive_skb_one_core+0x113/0x1a0 [ 53.120756] ? __netif_receive_skb_core+0x2c50/0x2c50 [ 53.125935] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.131459] ? check_preemption_disabled+0x48/0x290 [ 53.136466] ? lock_acquire+0x16f/0x3f0 [ 53.140427] __netif_receive_skb+0x2c/0x1d0 [ 53.145140] netif_receive_skb_internal+0x117/0x700 [ 53.150141] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 53.155659] ? dev_cpu_dead+0x920/0x920 [ 53.159629] ? eth_gro_receive+0x8a0/0x8a0 [ 53.163848] napi_gro_frags+0x602/0xa20 [ 53.167833] tun_get_user+0x2f08/0x4c30 [ 53.171801] ? mark_held_locks+0x100/0x100 [ 53.176046] ? tun_build_skb.isra.0+0x1a40/0x1a40 [ 53.180987] ? tun_get+0x171/0x290 [ 53.184521] ? lock_downgrade+0x880/0x880 [ 53.188660] ? kasan_check_read+0x11/0x20 [ 53.192796] tun_chr_write_iter+0xbd/0x156 [ 53.197019] do_iter_readv_writev+0x558/0x830 [ 53.201508] ? vfs_dedupe_file_range+0x6f0/0x6f0 [ 53.206249] ? security_file_permission+0x89/0x230 [ 53.211161] ? rw_verify_area+0x118/0x360 [ 53.215330] do_iter_write+0x184/0x5f0 [ 53.219198] ? dup_iter+0x270/0x270 [ 53.222811] vfs_writev+0x1b3/0x2f0 [ 53.226462] ? vfs_iter_write+0xb0/0xb0 [ 53.230418] ? copy_page_range+0x2030/0x2030 [ 53.234807] ? __do_page_fault+0x676/0xe90 [ 53.239112] ? lock_downgrade+0x880/0x880 [ 53.243236] ? count_memcg_event_mm+0x2b1/0x4d0 [ 53.247890] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.253543] ? __fget_light+0x1a9/0x230 [ 53.257501] do_writev+0x15e/0x370 [ 53.261024] ? vfs_writev+0x2f0/0x2f0 [ 53.264828] ? do_syscall_64+0x26/0x620 [ 53.268791] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.274134] ? do_syscall_64+0x26/0x620 [ 53.278091] __x64_sys_writev+0x75/0xb0 [ 53.282048] do_syscall_64+0xfd/0x620 [ 53.285832] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.291003] RIP: 0033:0x4425f0 [ 53.294177] Code: 05 48 3d 01 f0 ff ff 0f 83 fd 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 61 9e 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0e fc ff c3 48 83 ec 08 e8 9a 2b 00 00 [ 53.313070] RSP: 002b:00007fffc16b5f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 53.320760] RAX: ffffffffffffffda RBX: 00007fffc16b5f60 RCX: 00000000004425f0 [ 53.328017] RDX: 0000000000000001 RSI: 00007fffc16b5f60 RDI: 00000000000000f0 [ 53.335267] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 53.342531] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc16b5f20 [ 53.349791] R13: 00000000004039e0 R14: 0000000000000000 R15: 0000000000000000 [ 53.357042] Modules linked in: [ 53.360292] ---[ end trace b0f47555b807eaf4 ]--- [ 53.365102] RIP: 0010:xfrmi_decode_session+0x153/0x790 [ 53.370373] Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 d9 05 00 00 4c 8b 23 e8 0b 52 0c fb e8 36 c8 1e [ 53.389320] RSP: 0018:ffff888095897178 EFLAGS: 00010246 [ 53.394701] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff864c8142 [ 53.401954] RDX: 0000000000000000 RSI: ffffffff864c7b7c RDI: ffff888089859788 [ 53.409236] RBP: ffff8880958971a0 R08: ffff88807e206640 R09: ffffed1015d04733 [ 53.416528] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: ffff888089859780 [ 53.423812] R13: 0000000000000039 R14: 000000000000000b R15: ffff888095a88500 [ 53.431095] FS: 0000000000c8e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 53.439343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.445824] CR2: 0000000020000080 CR3: 000000009022a000 CR4: 00000000001406f0 [ 53.453136] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.460426] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.467718] Kernel panic - not syncing: Fatal exception in interrupt [ 53.474941] Kernel Offset: disabled [ 53.478569] Rebooting in 86400 seconds..