[ 106.555904][ T27] audit: type=1800 audit(1580509334.637:36): pid=10800 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=2417 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: [ 110.414282][ T27] kauditd_printk_skb: 4 callbacks suppressed [ 110.414296][ T27] audit: type=1400 audit(1580509338.627:41): avc: denied { map } for pid=10977 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 '10.128.0.220' (ECDSA) to the list of known hosts. [ 117.260370][ T27] audit: type=1400 audit(1580509345.477:42): avc: denied { map } for pid=10989 comm="syz-executor165" path="/root/syz-executor165646860" 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 [ 117.265196][T10989] general protection fault, probably for non-canonical address 0xdffffc00060e8d2f: 0000 [#1] PREEMPT SMP KASAN [ 117.287737][ T27] audit: type=1400 audit(1580509345.477:43): avc: denied { create } for pid=10989 comm="syz-executor165" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 117.299139][T10989] KASAN: probably user-memory-access in range [0x0000000030746978-0x000000003074697f] [ 117.299154][T10989] CPU: 1 PID: 10989 Comm: syz-executor165 Not tainted 5.5.0-syzkaller #0 [ 117.299160][T10989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.299180][T10989] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 117.299194][T10989] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 117.299200][T10989] RSP: 0018:ffffc90002077228 EFLAGS: 00010202 [ 117.299210][T10989] RAX: ffff8880a2276250 RBX: 1ffff9200040ee49 RCX: 00000000060e8d2f [ 117.299217][T10989] RDX: dffffc0000000000 RSI: ffffffff8682a1ce RDI: 000000003074697b [ 117.299224][T10989] RBP: ffffc90002077370 R08: ffff8880a957c180 R09: fffff5200040ee55 executing program [ 117.299238][T10989] R10: fffff5200040ee54 R11: ffffc900020772a6 R12: 0000000000000000 [ 117.324456][ T27] audit: type=1400 audit(1580509345.477:44): avc: denied { write } for pid=10989 comm="syz-executor165" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 117.333709][T10989] R13: ffff8880a2276250 R14: ffff8880a2276050 R15: 0000000030746973 [ 117.333721][T10989] FS: 0000000000c66880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 117.333830][T10989] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 117.333846][T10989] CR2: 0000000020000104 CR3: 000000008f83e000 CR4: 00000000001406e0 [ 117.473410][T10989] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 117.481376][T10989] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 117.489335][T10989] Call Trace: [ 117.492631][T10989] ? flow_offload_queue_work+0x130/0x130 [ 117.498270][T10989] ? nft_netdev_hook_alloc+0xfb/0x170 [ 117.503636][T10989] ? nf_tables_init_net+0x1e0/0x1e0 [ 117.508942][T10989] ? nla_memcpy+0xb0/0xb0 [ 117.513267][T10989] ? wait_for_completion+0x440/0x440 [ 117.518717][T10989] ? trace_hardirqs_on+0x67/0x240 [ 117.523740][T10989] ? nf_tables_parse_netdev_hooks+0x70/0x660 [ 117.529875][T10989] nf_tables_newflowtable+0x1352/0x1d90 [ 117.535459][T10989] ? nf_tables_newrule+0x2400/0x2400 [ 117.540749][T10989] ? __nla_parse+0x43/0x60 [ 117.545239][T10989] nfnetlink_rcv_batch+0x8c8/0x1790 [ 117.550636][T10989] ? nf_tables_newrule+0x2400/0x2400 [ 117.555983][T10989] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 117.561779][T10989] ? selinux_sb_eat_lsm_opts+0x700/0x700 [ 117.567687][T10989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 117.574070][T10989] ? __nla_validate_parse+0x2d0/0x1ee0 [ 117.579524][T10989] ? selinux_capable+0x36/0x40 [ 117.584278][T10989] ? nla_memcpy+0xb0/0xb0 [ 117.588624][T10989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 117.594850][T10989] ? ns_capable_common+0x93/0x100 [ 117.599872][T10989] ? __nla_parse+0x43/0x60 [ 117.604411][T10989] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 117.610238][T10989] nfnetlink_rcv+0x3e7/0x460 [ 117.614942][T10989] ? nfnetlink_rcv_batch+0x1790/0x1790 [ 117.620627][T10989] ? netlink_deliver_tap+0x248/0xbf0 [ 117.625904][T10989] ? __kasan_check_write+0x14/0x20 [ 117.631018][T10989] netlink_unicast+0x59e/0x7e0 [ 117.635789][T10989] ? netlink_attachskb+0x870/0x870 [ 117.641254][T10989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 117.647529][T10989] netlink_sendmsg+0x91c/0xea0 [ 117.652296][T10989] ? netlink_unicast+0x7e0/0x7e0 [ 117.657320][T10989] ? tomoyo_socket_sendmsg+0x26/0x30 [ 117.662728][T10989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 117.669059][T10989] ? security_socket_sendmsg+0x8d/0xc0 [ 117.674666][T10989] ? netlink_unicast+0x7e0/0x7e0 [ 117.679606][T10989] sock_sendmsg+0xd7/0x130 [ 117.684029][T10989] ____sys_sendmsg+0x753/0x880 [ 117.688778][T10989] ? kernel_sendmsg+0x50/0x50 [ 117.693460][T10989] ___sys_sendmsg+0x100/0x170 [ 117.698151][T10989] ? sendmsg_copy_msghdr+0x70/0x70 [ 117.703269][T10989] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 117.709259][T10989] ? prep_transhuge_page+0xa0/0xa0 [ 117.714382][T10989] ? do_page_fault+0x579/0x12e1 [ 117.719229][T10989] ? find_held_lock+0x35/0x130 [ 117.724116][T10989] ? do_page_fault+0x579/0x12e1 [ 117.728968][T10989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 117.735262][T10989] ? __fget_light+0x1ad/0x270 [ 117.739958][T10989] ? __fdget+0x1b/0x20 [ 117.744138][T10989] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 117.750527][T10989] __sys_sendmsg+0x105/0x1d0 [ 117.755217][T10989] ? __sys_sendmsg_sock+0xc0/0xc0 [ 117.760315][T10989] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 117.766011][T10989] ? do_syscall_64+0x26/0x790 [ 117.770691][T10989] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 117.776761][T10989] ? do_syscall_64+0x26/0x790 [ 117.781440][T10989] __x64_sys_sendmsg+0x78/0xb0 [ 117.786191][T10989] do_syscall_64+0xfa/0x790 [ 117.790696][T10989] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 117.796592][T10989] RIP: 0033:0x440689 [ 117.800491][T10989] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 117.820327][T10989] RSP: 002b:00007ffed2f1f638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 117.828794][T10989] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440689 [ 117.836882][T10989] RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 [ 117.844899][T10989] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 117.852873][T10989] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f10 [ 117.860866][T10989] R13: 0000000000401fa0 R14: 0000000000000000 R15: 0000000000000000 [ 117.868931][T10989] Modules linked in: [ 117.874308][T10989] ---[ end trace fb70e5d498927ef2 ]--- [ 117.879996][T10989] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 117.886581][T10989] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 117.906652][T10989] RSP: 0018:ffffc90002077228 EFLAGS: 00010202 [ 117.912791][T10989] RAX: ffff8880a2276250 RBX: 1ffff9200040ee49 RCX: 00000000060e8d2f [ 117.920826][T10989] RDX: dffffc0000000000 RSI: ffffffff8682a1ce RDI: 000000003074697b [ 117.928835][T10989] RBP: ffffc90002077370 R08: ffff8880a957c180 R09: fffff5200040ee55 [ 117.936863][T10989] R10: fffff5200040ee54 R11: ffffc900020772a6 R12: 0000000000000000 [ 117.944988][T10989] R13: ffff8880a2276250 R14: ffff8880a2276050 R15: 0000000030746973 [ 117.953144][T10989] FS: 0000000000c66880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 117.962208][T10989] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 117.968949][T10989] CR2: 00005647cfff4140 CR3: 000000008f83e000 CR4: 00000000001406f0 [ 117.977092][T10989] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 117.985264][T10989] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 117.993413][T10989] Kernel panic - not syncing: Fatal exception [ 118.001194][T10989] Kernel Offset: disabled [ 118.005901][T10989] Rebooting in 86400 seconds..