[ 83.089035][ T27] audit: type=1800 audit(1565731554.023:29): pid=11046 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.136451][ T27] audit: type=1800 audit(1565731554.023:30): pid=11046 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. syzkaller login: [ 92.304114][ T27] kauditd_printk_skb: 5 callbacks suppressed [ 92.304131][ T27] audit: type=1400 audit(1565731563.243:36): avc: denied { map } for pid=11236 comm="syz-executor394" path="/root/syz-executor394359866" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 92.352774][T11237] IPVS: ftp: loaded support on port[0] = 21 [ 92.404589][T11237] chnl_net:caif_netlink_parms(): no params data found [ 92.427404][T11237] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.434843][T11237] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.442514][T11237] device bridge_slave_0 entered promiscuous mode [ 92.450104][T11237] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.457181][T11237] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.464889][T11237] device bridge_slave_1 entered promiscuous mode [ 92.478593][T11237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.489322][T11237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.505880][T11237] team0: Port device team_slave_0 added [ 92.512968][T11237] team0: Port device team_slave_1 added [ 92.591497][T11237] device hsr_slave_0 entered promiscuous mode [ 92.640182][T11237] device hsr_slave_1 entered promiscuous mode [ 92.715935][T11237] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.723059][T11237] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.730443][T11237] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.737509][T11237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.766118][T11237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.777436][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.786235][ T3022] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.794193][ T3022] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.802888][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.813642][T11237] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.823348][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.831941][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.838986][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.860739][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.869005][ T3022] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.876098][ T3022] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.884755][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.893419][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.902126][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.910603][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.919102][ T3022] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.928161][T11237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.944099][T11237] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 92.976392][ T27] audit: type=1400 audit(1565731563.913:37): avc: denied { associate } for pid=11237 comm="syz-executor394" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 105.410420][T11429] kasan: CONFIG_KASAN_INLINE enabled [ 105.416635][T11429] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 105.425820][T11429] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 105.433687][T11429] CPU: 1 PID: 11429 Comm: syz-executor394 Not tainted 5.3.0-rc4+ #101 [ 105.442894][T11429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.453281][T11429] RIP: 0010:packet_lookup_frame+0x8d/0x270 [ 105.459467][T11429] Code: c1 ee 03 f7 73 0c 80 3c 0e 00 0f 85 cb 01 00 00 48 8b 0b 89 c0 4c 8d 24 c1 48 b8 00 00 00 00 00 fc ff df 4c 89 e1 48 c1 e9 03 <80> 3c 01 00 0f 85 94 01 00 00 48 8d 7b 10 4d 8b 3c 24 48 b8 00 00 [ 105.481191][T11429] RSP: 0018:ffff88809f82f7b8 EFLAGS: 00010246 [ 105.487352][T11429] RAX: dffffc0000000000 RBX: ffff8880a45c7030 RCX: 0000000000000000 [ 105.495869][T11429] RDX: 0000000000000000 RSI: 1ffff110148b8e06 RDI: ffff8880a45c703c [ 105.505281][T11429] RBP: ffff88809f82f7e8 R08: ffff888087aea200 R09: fffffbfff134ae50 [ 105.514081][T11429] R10: fffffbfff134ae4f R11: ffffffff89a5727f R12: 0000000000000000 [ 105.522951][T11429] R13: 0000000000000001 R14: ffff8880a45c6ac0 R15: 0000000000000000 [ 105.531194][T11429] FS: 00007fa04716f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.540976][T11429] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.548227][T11429] CR2: 00007fa04716edb8 CR3: 0000000091eb4000 CR4: 00000000001406e0 [ 105.557202][T11429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.566086][T11429] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.574348][T11429] Call Trace: [ 105.577850][T11429] packet_sendmsg+0x590/0x6250 [ 105.582657][T11429] ? __might_fault+0x12b/0x1e0 [ 105.587689][T11429] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 105.594449][T11429] ? rw_copy_check_uvector+0x2ce/0x390 [ 105.600750][T11429] ? tomoyo_socket_sendmsg_permission+0x147/0x3cb [ 105.607778][T11429] ? tomoyo_socket_bind_permission+0x360/0x360 [ 105.614329][T11429] ? packet_notifier+0x880/0x880 [ 105.619819][T11429] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.626284][T11429] ? security_socket_sendmsg+0x8d/0xc0 [ 105.632238][T11429] ? packet_notifier+0x880/0x880 [ 105.637533][T11429] sock_sendmsg+0xd7/0x130 [ 105.642423][T11429] ___sys_sendmsg+0x3e2/0x920 [ 105.647774][T11429] ? copy_msghdr_from_user+0x440/0x440 [ 105.653993][T11429] ? lock_downgrade+0x920/0x920 [ 105.658852][T11429] ? __fget+0xa3/0x560 [ 105.663725][T11429] ? futex_wake+0x179/0x4d0 [ 105.668227][T11429] ? __fget+0x384/0x560 [ 105.672605][T11429] ? __might_fault+0x12b/0x1e0 [ 105.677903][T11429] ? __kasan_check_read+0x11/0x20 [ 105.683064][T11429] ? ksys_dup3+0x3e0/0x3e0 [ 105.687995][T11429] ? lock_downgrade+0x920/0x920 [ 105.693491][T11429] ? __might_fault+0xfb/0x1e0 [ 105.699212][T11429] ? ___might_sleep+0x163/0x280 [ 105.704616][T11429] __sys_sendmmsg+0x1bf/0x4d0 [ 105.709784][T11429] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 105.715159][T11429] ? packet_do_bind+0x479/0xc50 [ 105.720171][T11429] ? __sys_bind+0x15a/0x290 [ 105.725028][T11429] ? __ia32_sys_socketpair+0xf0/0xf0 [ 105.730737][T11429] ? __x64_sys_futex+0x404/0x590 [ 105.736255][T11429] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 105.742730][T11429] ? __kasan_check_write+0x14/0x20 [ 105.748706][T11429] ? switch_fpu_return+0x1fa/0x4f0 [ 105.754182][T11429] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 105.761279][T11429] __x64_sys_sendmmsg+0x9d/0x100 [ 105.766930][T11429] do_syscall_64+0xfd/0x6a0 [ 105.771857][T11429] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.778314][T11429] RIP: 0033:0x4498d9 [ 105.782381][T11429] Code: e8 bc 15 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 cb 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 105.803580][T11429] RSP: 002b:00007fa04716ece8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 105.812676][T11429] RAX: ffffffffffffffda RBX: 00000000006e5a18 RCX: 00000000004498d9 [ 105.821084][T11429] RDX: 0400000000000328 RSI: 0000000020008a80 RDI: 0000000000000003 [ 105.830088][T11429] RBP: 00000000006e5a10 R08: 0000000000000000 R09: 0000000000000000 [ 105.839482][T11429] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e5a1c [ 105.848418][T11429] R13: 00007ffeaaddec6f R14: 00007fa04716f9c0 R15: 20c49ba5e353f7cf [ 105.857923][T11429] Modules linked in: [ 105.862448][T11429] ---[ end trace 15b7ad6cf5fdcd2e ]--- [ 105.868333][T11429] RIP: 0010:packet_lookup_frame+0x8d/0x270 [ 105.875048][T11429] Code: c1 ee 03 f7 73 0c 80 3c 0e 00 0f 85 cb 01 00 00 48 8b 0b 89 c0 4c 8d 24 c1 48 b8 00 00 00 00 00 fc ff df 4c 89 e1 48 c1 e9 03 <80> 3c 01 00 0f 85 94 01 00 00 48 8d 7b 10 4d 8b 3c 24 48 b8 00 00 [ 105.897645][T11429] RSP: 0018:ffff88809f82f7b8 EFLAGS: 00010246 [ 105.904703][T11429] RAX: dffffc0000000000 RBX: ffff8880a45c7030 RCX: 0000000000000000 [ 105.914210][T11429] RDX: 0000000000000000 RSI: 1ffff110148b8e06 RDI: ffff8880a45c703c [ 105.922535][T11429] RBP: ffff88809f82f7e8 R08: ffff888087aea200 R09: fffffbfff134ae50 [ 105.930980][T11429] R10: fffffbfff134ae4f R11: ffffffff89a5727f R12: 0000000000000000 [ 105.939421][T11429] R13: 0000000000000001 R14: ffff8880a45c6ac0 R15: 0000000000000000 [ 105.948089][T11429] FS: 00007fa04716f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.957437][T11429] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.965306][T11429] CR2: 00007fa04716edb8 CR3: 0000000091eb4000 CR4: 00000000001406e0 [ 105.974115][T11429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.982752][T11429] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.991438][T11429] Kernel panic - not syncing: Fatal exception [ 105.999312][T11429] Kernel Offset: disabled [ 106.004027][T11429] Rebooting in 86400 seconds..