[ 77.586432][ T27] audit: type=1800 audit(1579141259.262:26): pid=9933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 78.651604][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 78.651616][ T27] audit: type=1800 audit(1579141260.352:29): pid=9933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 78.678551][ T27] audit: type=1800 audit(1579141260.352:30): pid=9933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 89.272713][T10088] netlink: 760 bytes leftover after parsing attributes in process `syz-executor987'. [ 89.320072][T10088] ------------[ cut here ]------------ [ 89.325726][T10088] truncated: 'nft-expr-0-LMMR~*{F DcHc(?V' (len 209) [ 89.326113][T10088] WARNING: CPU: 0 PID: 10088 at net/netfilter/nf_tables_api.c:588 nft_request_module+0x189/0x1a0 [ 89.346463][T10088] Kernel panic - not syncing: panic_on_warn set ... [ 89.353264][T10088] CPU: 0 PID: 10088 Comm: syz-executor987 Not tainted 5.5.0-rc6-syzkaller #0 [ 89.362690][T10088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.372750][T10088] Call Trace: [ 89.376055][T10088] dump_stack+0x197/0x210 [ 89.380594][T10088] ? nft_request_module+0x110/0x1a0 [ 89.385886][T10088] panic+0x2e3/0x75c [ 89.390038][T10088] ? add_taint.cold+0x16/0x16 [ 89.394973][T10088] ? __kasan_check_write+0x14/0x20 [ 89.400200][T10088] ? __warn.cold+0x14/0x3e [ 89.405007][T10088] ? __warn+0xd9/0x1cf [ 89.409316][T10088] ? nft_request_module+0x189/0x1a0 [ 89.414549][T10088] __warn.cold+0x2f/0x3e [ 89.419029][T10088] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 89.425623][T10088] ? nft_request_module+0x189/0x1a0 [ 89.431289][T10088] report_bug+0x289/0x300 [ 89.435700][T10088] do_error_trap+0x11b/0x200 [ 89.440291][T10088] do_invalid_op+0x37/0x50 [ 89.444941][T10088] ? nft_request_module+0x189/0x1a0 [ 89.450550][T10088] invalid_op+0x23/0x30 [ 89.454774][T10088] RIP: 0010:nft_request_module+0x189/0x1a0 [ 89.460598][T10088] Code: 00 75 2b 48 81 c4 10 01 00 00 5b 41 5c 41 5d 5d c3 e8 1b 6a 0e fb 44 89 ea 48 c7 c7 e0 7a dc 88 48 8d 74 24 60 e8 a6 19 df fa <0f> 0b eb 9a e8 7e 14 df fa 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 [ 89.481375][T10088] RSP: 0018:ffffc90002047188 EFLAGS: 00010282 [ 89.487823][T10088] RAX: 0000000000000000 RBX: ffffffff8a4c62c0 RCX: 0000000000000000 [ 89.496426][T10088] RDX: 0000000000000000 RSI: ffffffff815e5396 RDI: fffff52000408e23 [ 89.504524][T10088] RBP: ffffc900020472b0 R08: ffff88808b4f6340 R09: fffffbfff165e7b2 [ 89.513045][T10088] R10: fffffbfff165e7b1 R11: ffffffff8b2f3d8f R12: 1ffff92000408e31 [ 89.521538][T10088] R13: 00000000000000d1 R14: ffffffff8a4c62c0 R15: ffffc900020473a0 [ 89.530019][T10088] ? vprintk_func+0x86/0x189 [ 89.534752][T10088] ? nft_request_module+0x189/0x1a0 [ 89.540129][T10088] ? __nf_tables_abort+0x2a50/0x2a50 [ 89.545526][T10088] ? __nla_validate_parse+0x2d0/0x1ee0 [ 89.551208][T10088] nft_expr_type_request_module+0x65/0xb0 [ 89.557278][T10088] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 89.564496][T10088] nf_tables_expr_parse+0x4e4/0x6b0 [ 89.569709][T10088] ? nft_expr_type_request_module+0xb0/0xb0 [ 89.575962][T10088] ? kasan_kmalloc+0x9/0x10 [ 89.580783][T10088] ? __kmalloc_node+0x4e/0x70 [ 89.585463][T10088] nf_tables_newrule+0x72b/0x2400 [ 89.590496][T10088] ? nf_tables_abort+0x30/0x30 [ 89.595404][T10088] ? nla_memcpy+0xb0/0xb0 [ 89.599902][T10088] ? __nla_parse+0x43/0x60 [ 89.604391][T10088] nfnetlink_rcv_batch+0xf42/0x17a0 [ 89.609712][T10088] ? nf_tables_abort+0x30/0x30 [ 89.614586][T10088] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 89.620621][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.627409][T10088] ? apparmor_capable+0x497/0x900 [ 89.632674][T10088] ? __nla_validate_parse+0x2d0/0x1ee0 [ 89.638258][T10088] ? cap_capable+0x205/0x270 [ 89.643210][T10088] ? nla_memcpy+0xb0/0xb0 [ 89.647868][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.654141][T10088] ? ns_capable_common+0x93/0x100 [ 89.659368][T10088] ? __nla_parse+0x43/0x60 [ 89.663911][T10088] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 89.669791][T10088] nfnetlink_rcv+0x3e7/0x460 [ 89.674709][T10088] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 89.680317][T10088] ? netlink_deliver_tap+0x24a/0xbe0 [ 89.685991][T10088] ? __kasan_check_write+0x14/0x20 [ 89.691350][T10088] netlink_unicast+0x58c/0x7d0 [ 89.696294][T10088] ? netlink_attachskb+0x870/0x870 [ 89.701493][T10088] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 89.707596][T10088] ? __check_object_size+0x3d/0x437 [ 89.712902][T10088] netlink_sendmsg+0x91c/0xea0 [ 89.717894][T10088] ? netlink_unicast+0x7d0/0x7d0 [ 89.722846][T10088] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 89.729913][T10088] ? apparmor_socket_sendmsg+0x2a/0x30 [ 89.736462][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.743059][T10088] ? security_socket_sendmsg+0x8d/0xc0 [ 89.748790][T10088] ? netlink_unicast+0x7d0/0x7d0 [ 89.754434][T10088] sock_sendmsg+0xd7/0x130 [ 89.758963][T10088] ____sys_sendmsg+0x753/0x880 [ 89.763742][T10088] ? kernel_sendmsg+0x50/0x50 [ 89.768659][T10088] ? lockdep_init_map+0x1be/0x6d0 [ 89.774051][T10088] ___sys_sendmsg+0x100/0x170 [ 89.778775][T10088] ? sendmsg_copy_msghdr+0x70/0x70 [ 89.784323][T10088] ? __kasan_check_read+0x11/0x20 [ 89.789392][T10088] ? __lock_acquire+0x8a0/0x4a00 [ 89.794449][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.801093][T10088] ? __this_cpu_preempt_check+0x35/0x190 [ 89.806894][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.813529][T10088] ? percpu_counter_add_batch+0x13c/0x190 [ 89.820579][T10088] ? __fd_install+0x1bc/0x640 [ 89.825254][T10088] ? find_held_lock+0x35/0x130 [ 89.830019][T10088] ? __fd_install+0x1bc/0x640 [ 89.835601][T10088] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.842499][T10088] ? __fget_light+0x1a9/0x230 [ 89.847544][T10088] ? __fdget+0x1b/0x20 [ 89.851613][T10088] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 89.858033][T10088] __sys_sendmsg+0x105/0x1d0 [ 89.862704][T10088] ? __sys_sendmsg_sock+0xc0/0xc0 [ 89.868349][T10088] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 89.874091][T10088] ? do_syscall_64+0x26/0x790 [ 89.878884][T10088] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.885508][T10088] ? do_syscall_64+0x26/0x790 [ 89.890416][T10088] __x64_sys_sendmsg+0x78/0xb0 [ 89.895174][T10088] do_syscall_64+0xfa/0x790 [ 89.899725][T10088] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.905994][T10088] RIP: 0033:0x440619 [ 89.910311][T10088] 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 [ 89.930419][T10088] RSP: 002b:00007ffda286bab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.939209][T10088] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440619 [ 89.947398][T10088] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005 [ 89.955980][T10088] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 89.964155][T10088] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401ea0 [ 89.973229][T10088] R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 [ 89.983472][T10088] Kernel Offset: disabled [ 89.988174][T10088] Rebooting in 86400 seconds..