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. [ 51.340407] audit: type=1800 audit(1579818546.913:33): pid=8015 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 51.362627] audit: type=1800 audit(1579818546.913:34): pid=8015 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 53.031767] audit: type=1400 audit(1579818548.613:35): avc: denied { map } for pid=8189 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 '10.128.0.108' (ECDSA) to the list of known hosts. executing program [ 59.887489] audit: type=1400 audit(1579818555.463:36): avc: denied { map } for pid=8201 comm="syz-executor212" path="/root/syz-executor212167240" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 59.963878] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 59.976530] netlink: 96 bytes leftover after parsing attributes in process `syz-executor212'. [ 59.986487] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 59.998857] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.011310] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.023629] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.036042] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.048297] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.060707] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.072920] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 [ 60.085811] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8204 comm=syz-executor212 executing program [ 60.281518] netlink: 96 bytes leftover after parsing attributes in process `syz-executor212'. [ 60.291207] ------------[ cut here ]------------ [ 60.296326] WARNING: CPU: 0 PID: 8207 at net/sched/sch_cbq.c:1439 cbq_destroy_class.cold+0x11/0x18 [ 60.305448] Kernel panic - not syncing: panic_on_warn set ... [ 60.305448] [ 60.312815] CPU: 0 PID: 8207 Comm: syz-executor212 Not tainted 4.19.98-syzkaller #0 [ 60.320623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.329980] Call Trace: [ 60.332568] dump_stack+0x197/0x210 [ 60.336188] panic+0x26a/0x50e [ 60.339370] ? __warn_printk+0xf3/0xf3 [ 60.343251] ? cbq_destroy_class.cold+0x11/0x18 [ 60.347915] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.353447] ? __warn.cold+0x5/0x53 [ 60.357062] ? __warn+0xe8/0x1d0 [ 60.360422] ? cbq_destroy_class.cold+0x11/0x18 [ 60.365132] __warn.cold+0x20/0x53 [ 60.368663] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.374190] ? cbq_destroy_class.cold+0x11/0x18 [ 60.378851] report_bug+0x263/0x2b0 [ 60.382614] do_error_trap+0x204/0x360 [ 60.386606] ? math_error+0x340/0x340 [ 60.390415] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.396087] ? wake_up_klogd+0x99/0xd0 [ 60.399974] ? error_entry+0x7c/0xe0 [ 60.403681] ? trace_hardirqs_off_caller+0x65/0x220 [ 60.408757] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.413655] do_invalid_op+0x1b/0x20 [ 60.417358] invalid_op+0x14/0x20 [ 60.420806] RIP: 0010:cbq_destroy_class.cold+0x11/0x18 [ 60.426108] Code: c0 fb e9 82 fe ff ff 4c 89 f7 e8 7a 9e c0 fb e9 26 ff ff ff e9 76 02 00 00 e8 4b 04 89 fb 48 c7 c7 a0 9a 4d 88 e8 d3 67 73 fb <0f> 0b e9 90 59 ff ff 4c 8d 6b 68 e8 2f 04 89 fb 48 89 d8 48 c1 e8 [ 60.445019] RSP: 0018:ffff888093dd7178 EFLAGS: 00010282 [ 60.450381] RAX: 0000000000000024 RBX: ffff88808ed2cdc0 RCX: 0000000000000000 [ 60.457660] RDX: 0000000000000000 RSI: ffffffff81558b76 RDI: ffffed10127bae21 [ 60.465015] RBP: ffff888093dd7190 R08: 0000000000000024 R09: ffffed1015d05079 [ 60.472280] R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: ffff88808ed2d0a0 [ 60.479536] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88808ed2d0a0 [ 60.486810] ? vprintk_func+0x86/0x189 [ 60.490701] ? cbq_destroy_class.cold+0x11/0x18 [ 60.495362] cbq_destroy+0x208/0x2c0 [ 60.499112] ? cbq_init+0xb10/0xb10 [ 60.502763] qdisc_destroy+0x18a/0x6b0 [ 60.506673] ? qdisc_notify.isra.0+0x1e0/0x340 [ 60.511295] notify_and_destroy+0xa2/0xb0 [ 60.515434] qdisc_graft+0x4f3/0x1030 [ 60.519238] ? tc_dump_tclass+0x4f0/0x4f0 [ 60.523382] tc_modify_qdisc+0xcae/0x1bd3 [ 60.527569] ? qdisc_create+0x1230/0x1230 [ 60.531707] ? find_held_lock+0x35/0x130 [ 60.535765] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.541292] ? qdisc_create+0x1230/0x1230 [ 60.545474] rtnetlink_rcv_msg+0x463/0xb00 [ 60.549710] ? rtnetlink_put_metrics+0x560/0x560 [ 60.554458] ? netlink_deliver_tap+0x22d/0xc20 [ 60.559047] ? find_held_lock+0x35/0x130 [ 60.563109] netlink_rcv_skb+0x17d/0x460 [ 60.567181] ? rtnetlink_put_metrics+0x560/0x560 [ 60.571959] ? netlink_ack+0xb30/0xb30 [ 60.575838] ? kasan_check_read+0x11/0x20 [ 60.579978] ? netlink_deliver_tap+0x254/0xc20 [ 60.584567] rtnetlink_rcv+0x1d/0x30 [ 60.588273] netlink_unicast+0x53a/0x730 [ 60.592327] ? netlink_attachskb+0x770/0x770 [ 60.596730] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.602260] netlink_sendmsg+0x8ae/0xd70 [ 60.606333] ? netlink_unicast+0x730/0x730 [ 60.610569] ? selinux_socket_sendmsg+0x36/0x40 [ 60.615229] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.620774] ? security_socket_sendmsg+0x8d/0xc0 [ 60.625546] ? netlink_unicast+0x730/0x730 [ 60.629793] sock_sendmsg+0xd7/0x130 [ 60.633511] kernel_sendmsg+0x44/0x50 [ 60.637306] sock_no_sendpage+0x116/0x150 [ 60.641442] ? sock_kzfree_s+0x70/0x70 [ 60.645323] ? avc_has_perm+0x379/0x610 [ 60.649307] ? lock_acquire+0x16f/0x3f0 [ 60.653271] ? pipe_lock+0x6e/0x80 [ 60.656809] kernel_sendpage+0x92/0xf0 [ 60.660683] ? sock_kzfree_s+0x70/0x70 [ 60.664560] sock_sendpage+0x8b/0xc0 [ 60.668266] pipe_to_sendpage+0x296/0x360 [ 60.672403] ? kernel_sendpage+0xf0/0xf0 [ 60.676464] ? direct_splice_actor+0x190/0x190 [ 60.681051] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.686588] ? splice_from_pipe_next.part.0+0x255/0x2f0 [ 60.691953] __splice_from_pipe+0x391/0x7d0 [ 60.696265] ? direct_splice_actor+0x190/0x190 [ 60.700843] ? direct_splice_actor+0x190/0x190 [ 60.705414] splice_from_pipe+0x108/0x170 [ 60.709602] ? splice_shrink_spd+0xd0/0xd0 [ 60.713832] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.719373] ? security_file_permission+0x89/0x230 [ 60.724293] generic_splice_sendpage+0x3c/0x50 [ 60.728865] ? splice_from_pipe+0x170/0x170 [ 60.733240] do_splice+0x642/0x1340 [ 60.736860] ? find_held_lock+0x35/0x130 [ 60.740959] ? opipe_prep.part.0+0x2d0/0x2d0 [ 60.745413] ? __fget_light+0x1a9/0x230 [ 60.749427] __x64_sys_splice+0x2c6/0x330 [ 60.753609] do_syscall_64+0xfd/0x620 [ 60.757477] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.762672] RIP: 0033:0x446e79 [ 60.765933] Code: e8 5c b3 02 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 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.784889] RSP: 002b:00007f15b795ed88 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 60.792589] RAX: ffffffffffffffda RBX: 00000000006dcc98 RCX: 0000000000446e79 [ 60.799850] RDX: 0000000000000009 RSI: 0000000000000000 RDI: 0000000000000007 [ 60.807110] RBP: 00000000006dcc90 R08: 000000000004ffe0 R09: 0000000000000000 [ 60.814382] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc9c [ 60.821684] R13: 00000000004aed8e R14: 54c6c2ff093a6d32 R15: 0000000000010000 [ 60.830380] Kernel Offset: disabled [ 60.834086] Rebooting in 86400 seconds..