[ 43.795374] audit: type=1800 audit(1546312839.258:30): pid=8197 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 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: [ 48.266490] kauditd_printk_skb: 4 callbacks suppressed [ 48.266505] audit: type=1400 audit(1546312843.758:35): avc: denied { map } for pid=8374 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 '10.128.10.61' (ECDSA) to the list of known hosts. [ 72.647681] audit: type=1400 audit(1546312868.138:36): avc: denied { map } for pid=8386 comm="syz-executor871" path="/root/syz-executor871715547" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 72.683773] IPVS: ftp: loaded support on port[0] = 21 [ 72.742601] chnl_net:caif_netlink_parms(): no params data found [ 72.776465] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.783413] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.790683] device bridge_slave_0 entered promiscuous mode [ 72.797840] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.804303] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.811337] device bridge_slave_1 entered promiscuous mode [ 72.827732] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 72.837371] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 72.854881] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 72.863800] team0: Port device team_slave_0 added [ 72.869415] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 72.876641] team0: Port device team_slave_1 added [ 72.882223] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 72.889517] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 72.941022] device hsr_slave_0 entered promiscuous mode [ 73.008828] device hsr_slave_1 entered promiscuous mode [ 73.049160] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 73.056186] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 73.070276] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.076849] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.083858] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.090327] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.124425] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 73.130830] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.139349] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.147803] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.169275] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.176806] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.184898] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.195230] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 73.201582] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.210508] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.218064] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.224461] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.233812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.242014] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.248343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.264766] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.272847] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.288138] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.299269] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.310345] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 73.317161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready executing program executing program executing program executing program executing program [ 73.325110] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.332729] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.341024] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.353675] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 73.364030] 8021q: adding VLAN 0 to HW filter on device batadv0 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 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 [ 73.832288] kasan: CONFIG_KASAN_INLINE enabled [ 73.837016] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 73.847428] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 73.853775] CPU: 0 PID: 8482 Comm: syz-executor871 Not tainted 4.20.0+ #2 [ 73.860679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.870026] RIP: 0010:keyctl_pkey_params_get+0x284/0x550 [ 73.875546] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31 [ 73.894435] RSP: 0018:ffff888093f97bd0 EFLAGS: 00010246 [ 73.899778] RAX: 0290832928a62f20 RBX: ffff888093f97d90 RCX: ffffffff83434b9d [ 73.907030] RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001 [ 73.914403] RBP: ffff888093f97d20 R08: ffff8880931a21c0 R09: ffffed1013dc8889 [ 73.921723] R10: ffffed1013dc8888 R11: 0000000000000005 R12: 0000000000000000 [ 73.928986] R13: dffffc0000000000 R14: 1484194945317900 R15: 0000000000000000 [ 73.936366] FS: 0000000000cc4880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 73.944574] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.950502] CR2: 0000000020000300 CR3: 00000000a3fa2000 CR4: 00000000001406f0 [ 73.957765] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.965035] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.972282] Call Trace: [ 73.974992] ? __keyctl_dh_compute.cold+0x63/0x63 [ 73.979856] ? lock_downgrade+0x910/0x910 [ 73.984007] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 73.988755] keyctl_pkey_query+0xb8/0x2a0 [ 73.992957] ? keyctl_pkey_params_get_2+0x570/0x570 [ 73.997961] ? do_syscall_64+0x8c/0x800 [ 74.002035] ? do_syscall_64+0x8c/0x800 [ 74.006021] ? __do_page_fault+0x3f1/0xd60 [ 74.010246] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.015593] ? trace_hardirqs_off_caller+0x300/0x300 [ 74.020683] __x64_sys_keyctl+0x144/0x420 [ 74.024815] do_syscall_64+0x1a3/0x800 [ 74.028690] ? syscall_return_slowpath+0x5f0/0x5f0 [ 74.033602] ? prepare_exit_to_usermode+0x232/0x3b0 [ 74.038614] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 74.043452] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.048629] RIP: 0033:0x443079 [ 74.051943] Code: e8 4c 0c 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 4b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.070828] RSP: 002b:00007fff1cd8af68 EFLAGS: 00000207 ORIG_RAX: 00000000000000fa [ 74.078534] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443079 [ 74.085831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018 [ 74.093088] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 74.100381] R10: 0000000020000300 R11: 0000000000000207 R12: 0000000000000059 [ 74.107640] R13: 000000000001205b R14: 0000000000000000 R15: 0000000000000000 [ 74.114902] Modules linked in: [ 74.121966] ---[ end trace 8d35bfc0c63be136 ]--- [ 74.126719] RIP: 0010:keyctl_pkey_params_get+0x284/0x550 [ 74.132202] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31 [ 74.151298] RSP: 0018:ffff888093f97bd0 EFLAGS: 00010246 [ 74.156658] RAX: 0290832928a62f20 RBX: ffff888093f97d90 RCX: ffffffff83434b9d [ 74.163997] RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001 [ 74.171372] RBP: ffff888093f97d20 R08: ffff8880931a21c0 R09: ffffed1013dc8889 [ 74.178690] R10: ffffed1013dc8888 R11: 0000000000000005 R12: 0000000000000000 [ 74.185961] R13: dffffc0000000000 R14: 1484194945317900 R15: 0000000000000000 [ 74.193353] FS: 0000000000cc4880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 74.201602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.207473] CR2: 0000000020000300 CR3: 00000000a3fa2000 CR4: 00000000001406f0 [ 74.214854] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.222169] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.229456] Kernel panic - not syncing: Fatal exception [ 74.235689] Kernel Offset: disabled [ 74.239308] Rebooting in 86400 seconds..