[....] Starting enhanced syslogd: rsyslogd[ 10.530231] audit: type=1400 audit(1513669054.646:5): avc: denied { syslog } for pid=2991 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. 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: [ 16.142872] audit: type=1400 audit(1513669060.258:6): avc: denied { map } for pid=3131 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 'ci-upstream-kasan-gce-386-4,10.128.0.56' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 34.123640] audit: type=1400 audit(1513669078.239:7): avc: denied { map } for pid=3149 comm="syzkaller577153" path="/root/syzkaller577153444" 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 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 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 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 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 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 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 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 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 executing program executing program executing program executing program executing program executing program [ 38.953453] ================================================================== [ 38.960885] BUG: KASAN: double-free or invalid-free in skb_free_head+0x74/0xb0 [ 38.968224] [ 38.969839] CPU: 1 PID: 3147 Comm: sshd Not tainted 4.15.0-rc4+ #138 [ 38.976313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.985649] Call Trace: [ 38.988224] dump_stack+0x194/0x257 [ 38.991846] ? arch_local_irq_restore+0x53/0x53 [ 38.996503] ? show_regs_print_info+0x18/0x18 [ 39.000988] ? check_noncircular+0x20/0x20 [ 39.005217] ? print_irqtrace_events+0x270/0x270 [ 39.009963] ? skb_free_head+0x74/0xb0 [ 39.013837] print_address_description+0x73/0x250 [ 39.018667] ? skb_free_head+0x74/0xb0 [ 39.022543] ? skb_free_head+0x74/0xb0 [ 39.026418] kasan_report_double_free+0x55/0x80 [ 39.031079] kasan_slab_free+0xa3/0xc0 [ 39.034956] kfree+0xca/0x250 [ 39.038053] skb_free_head+0x74/0xb0 [ 39.041758] skb_release_data+0x58c/0x790 [ 39.045909] ? skb_tx_error+0x2c0/0x2c0 [ 39.049873] ? check_noncircular+0x20/0x20 [ 39.054101] ? __lock_is_held+0xb6/0x140 [ 39.058177] skb_release_all+0x4a/0x60 [ 39.062055] consume_skb+0x153/0x490 [ 39.065756] ? alloc_skb_with_frags+0x750/0x750 [ 39.070417] ? virtqueue_get_buf_ctx+0x3b1/0x8b0 [ 39.075174] ? detach_buf+0x6a0/0x6a0 [ 39.078982] __dev_kfree_skb_any+0x85/0xa0 [ 39.083209] free_old_xmit_skbs.isra.28+0x15a/0x2c0 [ 39.088219] ? virtnet_cpu_down_prep+0x80/0x80 [ 39.092788] ? packet_rcv_fanout+0x7d0/0x7d0 [ 39.097191] ? dev_queue_xmit_nit+0x8af/0xc40 [ 39.101684] start_xmit+0x1b9/0x1650 [ 39.105402] ? virtnet_xdp+0x12a0/0x12a0 [ 39.109471] dev_hard_start_xmit+0x248/0xac0 [ 39.113883] ? validate_xmit_skb_list+0x120/0x120 [ 39.118716] ? perf_trace_lock_acquire+0x590/0x980 [ 39.123638] ? lock_acquire+0x1d5/0x580 [ 39.127601] ? lock_acquire+0x1d5/0x580 [ 39.131561] ? sch_direct_xmit+0x280/0x6d0 [ 39.135781] ? skb_csum_hwoffload_help+0x57/0xa0 [ 39.140530] ? lock_release+0xa40/0xa40 [ 39.144493] ? netif_skb_features+0x8e0/0x8e0 [ 39.148979] ? do_raw_spin_trylock+0x190/0x190 [ 39.153554] ? lock_acquire+0x1d5/0x580 [ 39.157536] sch_direct_xmit+0x31d/0x6d0 [ 39.161594] ? dev_deactivate_queue.constprop.29+0x260/0x260 [ 39.167396] __dev_queue_xmit+0x16f4/0x2070 [ 39.171722] ? netdev_pick_tx+0x300/0x300 [ 39.175866] ? check_noncircular+0x20/0x20 [ 39.180096] ? __lock_is_held+0xb6/0x140 [ 39.184160] ? __lock_acquire+0x664/0x3e00 [ 39.188385] ? update_load_avg+0x249/0x2d80 [ 39.192694] ? numa_migrate_preferred+0x250/0x250 [ 39.197532] ? print_irqtrace_events+0x270/0x270 [ 39.202283] ? ip_finish_output+0x85e/0xd10 [ 39.206680] ? netlbl_catmap_setrng+0xb0/0xb0 [ 39.211183] ? mark_held_locks+0xaf/0x100 [ 39.215319] ? ip_finish_output2+0xca6/0x1460 [ 39.219809] dev_queue_xmit+0x17/0x20 [ 39.223596] ip_finish_output2+0xece/0x1460 [ 39.227913] ? dst_output+0x140/0x140 [ 39.231699] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.236701] ? ipt_do_table+0xd04/0x1330 [ 39.240749] ? trace_hardirqs_on+0xd/0x10 [ 39.244885] ? __local_bh_enable_ip+0x121/0x230 [ 39.249542] ? ipt_do_table+0xd6f/0x1330 [ 39.253590] ? __local_bh_enable_ip+0x121/0x230 [ 39.258250] ? ipv4_mtu+0x28c/0x3d0 [ 39.261873] ? __lock_is_held+0xb6/0x140 [ 39.265936] ip_finish_output+0x85e/0xd10 [ 39.270068] ? ip_finish_output+0x85e/0xd10 [ 39.274379] ? ip_fragment.constprop.49+0x200/0x200 [ 39.279383] ? iptable_mangle_hook+0xa9/0x550 [ 39.283879] ? nf_hook_slow+0xd3/0x1a0 [ 39.287765] ip_output+0x1cc/0x860 [ 39.291297] ? ip_mc_output+0x1350/0x1350 [ 39.295449] ? ip_fragment.constprop.49+0x200/0x200 [ 39.300465] ip_local_out+0x95/0x160 [ 39.304169] ip_queue_xmit+0x8c6/0x18e0 [ 39.308151] ? ip_build_and_send_pkt+0xc30/0xc30 [ 39.312897] ? refcount_dec_if_one+0x20/0x20 [ 39.317300] ? __tcp_v4_send_check+0x1b8/0x350 [ 39.321869] ? tcp_options_write+0x228/0x940 [ 39.326278] tcp_transmit_skb+0x1b12/0x38b0 [ 39.330611] ? __tcp_select_window+0x900/0x900 [ 39.335185] ? __kernel_text_address+0xd/0x40 [ 39.339675] ? __lock_acquire+0x664/0x3e00 [ 39.343905] ? depot_save_stack+0x12c/0x490 [ 39.348229] ? tcp_small_queue_check.isra.26+0x31c/0x450 [ 39.353668] ? tcp_tso_segs+0x240/0x240 [ 39.357633] ? pvclock_read_flags+0x160/0x160 [ 39.362115] ? inet_sendmsg+0x11f/0x5e0 [ 39.366078] ? sock_sendmsg+0xca/0x110 [ 39.369952] ? sock_write_iter+0x31a/0x5d0 [ 39.374173] ? __vfs_write+0x684/0x970 [ 39.378045] ? vfs_write+0x189/0x510 [ 39.381740] ? SyS_write+0xef/0x220 [ 39.385350] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 39.390279] ? sched_clock_cpu+0x1b/0x170 [ 39.394417] ? tcp_init_tso_segs+0x114/0x1f0 [ 39.398817] tcp_write_xmit+0x680/0x5190 [ 39.402885] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.407903] ? tcp_transmit_skb+0x38b0/0x38b0 [ 39.412392] ? __asan_register_globals+0x80/0xa0 [ 39.417163] ? find_held_lock+0x35/0x1d0 [ 39.421227] ? __might_fault+0x110/0x1d0 [ 39.425275] ? iov_iter_advance+0x2a1/0x13f0 [ 39.429680] ? lock_release+0xa40/0xa40 [ 39.433642] ? tcp_v4_md5_lookup+0x22/0x30 [ 39.437861] ? tcp_established_options+0x2c5/0x420 [ 39.442787] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 39.448314] __tcp_push_pending_frames+0xa0/0x250 [ 39.453150] tcp_push+0x538/0x770 [ 39.456600] ? tcp_splice_data_recv+0x1a0/0x1a0 [ 39.461257] ? skb_entail+0x5f6/0x8a0 [ 39.465046] ? iov_iter_advance+0x13f0/0x13f0 [ 39.469536] ? tcp_tx_timestamp+0x62/0x2a0 [ 39.473766] tcp_sendmsg_locked+0x2663/0x3b30 [ 39.478814] ? tcp_sendpage+0x60/0x60 [ 39.482614] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.487620] ? __mark_inode_dirty+0x262/0x1170 [ 39.492200] ? print_irqtrace_events+0x270/0x270 [ 39.496943] ? find_held_lock+0x35/0x1d0 [ 39.501008] ? lock_sock_nested+0xa3/0x110 [ 39.505230] ? lock_acquire+0x1d5/0x580 [ 39.509193] ? tcp_sendmsg+0x21/0x50 [ 39.512914] ? mark_held_locks+0xaf/0x100 [ 39.517047] ? do_raw_spin_trylock+0x190/0x190 [ 39.521625] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.526629] ? lock_sock_nested+0x91/0x110 [ 39.530853] ? trace_hardirqs_on+0xd/0x10 [ 39.534987] ? __local_bh_enable_ip+0x121/0x230 [ 39.539656] tcp_sendmsg+0x2f/0x50 [ 39.543190] inet_sendmsg+0x11f/0x5e0 [ 39.546981] ? inet_recvmsg+0x5f0/0x5f0 [ 39.550945] ? selinux_socket_sendmsg+0x36/0x40 [ 39.555604] ? security_socket_sendmsg+0x89/0xb0 [ 39.560351] ? inet_recvmsg+0x5f0/0x5f0 [ 39.564315] sock_sendmsg+0xca/0x110 [ 39.568019] sock_write_iter+0x31a/0x5d0 [ 39.572072] ? sock_sendmsg+0x110/0x110 [ 39.576051] ? iov_iter_init+0xaf/0x1d0 [ 39.580019] __vfs_write+0x684/0x970 [ 39.583728] ? kernel_read+0x120/0x120 [ 39.587605] ? bpf_fd_pass+0x280/0x280 [ 39.591495] ? _cond_resched+0x14/0x30 [ 39.595379] ? selinux_file_permission+0x82/0x460 [ 39.600227] ? rw_verify_area+0xe5/0x2b0 [ 39.604273] ? __fdget_raw+0x20/0x20 [ 39.607975] vfs_write+0x189/0x510 [ 39.611508] SyS_write+0xef/0x220 [ 39.614953] ? SyS_read+0x220/0x220 [ 39.618565] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.623572] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.628327] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 39.633068] RIP: 0033:0x7f2f9b624370 [ 39.636762] RSP: 002b:00007ffecfa0f6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.644453] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f9b624370 [ 39.651704] RDX: 0000000000000038 RSI: 0000556c2725b450 RDI: 0000000000000003 [ 39.658955] RBP: 0000000000000018 R08: 0000000000000001 R09: 0101010101010101 [ 39.666207] R10: 0000000000000008 R11: 0000000000000246 R12: 0000556c26d40d20 [ 39.673458] R13: 0000556c27268b10 R14: 0000556c27268af0 R15: 0000000000000050 [ 39.680740] [ 39.682349] Allocated by task 3147: [ 39.685962] save_stack+0x43/0xd0 [ 39.689398] kasan_kmalloc+0xad/0xe0 [ 39.693099] __kmalloc_node_track_caller+0x47/0x70 [ 39.698017] __kmalloc_reserve.isra.41+0x41/0xd0 [ 39.702755] __alloc_skb+0x13b/0x780 [ 39.706453] sk_stream_alloc_skb+0x11d/0x900 [ 39.710848] tcp_sendmsg_locked+0x1341/0x3b30 [ 39.715328] tcp_sendmsg+0x2f/0x50 [ 39.718851] inet_sendmsg+0x11f/0x5e0 [ 39.722636] sock_sendmsg+0xca/0x110 [ 39.726332] sock_write_iter+0x31a/0x5d0 [ 39.730377] __vfs_write+0x684/0x970 [ 39.734074] vfs_write+0x189/0x510 [ 39.737599] SyS_write+0xef/0x220 [ 39.741035] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 39.745770] [ 39.747376] Freed by task 3147: [ 39.750641] save_stack+0x43/0xd0 [ 39.754079] kasan_slab_free+0x71/0xc0 [ 39.757955] kfree+0xca/0x250 [ 39.761044] skb_free_head+0x74/0xb0 [ 39.764739] skb_release_data+0x58c/0x790 [ 39.768873] skb_release_all+0x4a/0x60 [ 39.772740] consume_skb+0x153/0x490 [ 39.776443] __dev_kfree_skb_any+0x85/0xa0 [ 39.780667] free_old_xmit_skbs.isra.28+0x15a/0x2c0 [ 39.785670] start_xmit+0x1b9/0x1650 [ 39.789364] dev_hard_start_xmit+0x248/0xac0 [ 39.793758] sch_direct_xmit+0x31d/0x6d0 [ 39.797798] __dev_queue_xmit+0x16f4/0x2070 [ 39.802108] dev_queue_xmit+0x17/0x20 [ 39.805894] ip_finish_output2+0xece/0x1460 [ 39.810199] ip_finish_output+0x85e/0xd10 [ 39.814332] ip_output+0x1cc/0x860 [ 39.817855] ip_local_out+0x95/0x160 [ 39.821550] ip_queue_xmit+0x8c6/0x18e0 [ 39.825511] tcp_transmit_skb+0x1b12/0x38b0 [ 39.829819] tcp_write_xmit+0x680/0x5190 [ 39.833863] __tcp_push_pending_frames+0xa0/0x250 [ 39.838691] tcp_push+0x538/0x770 [ 39.842127] tcp_sendmsg_locked+0x2663/0x3b30 [ 39.846606] tcp_sendmsg+0x2f/0x50 [ 39.850133] inet_sendmsg+0x11f/0x5e0 [ 39.853918] sock_sendmsg+0xca/0x110 [ 39.857614] sock_write_iter+0x31a/0x5d0 [ 39.861657] __vfs_write+0x684/0x970 [ 39.865355] vfs_write+0x189/0x510 [ 39.868878] SyS_write+0xef/0x220 [ 39.872315] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 39.877045] [ 39.878655] The buggy address belongs to the object at ffff8801c74e2dc0 [ 39.878655] which belongs to the cache kmalloc-1024 of size 1024 [ 39.891465] The buggy address is located 0 bytes inside of [ 39.891465] 1024-byte region [ffff8801c74e2dc0, ffff8801c74e31c0) [ 39.903232] The buggy address belongs to the page: [ 39.908142] page:0000000059360a10 count:1 mapcount:0 mapping:00000000afa99c3f index:0xffff8801c74e3290 compound_mapcount: 0 [ 39.919399] flags: 0x2fffc0000008100(slab|head) [ 39.924055] raw: 02fffc0000008100 ffff8801c74e2040 ffff8801c74e3290 0000000100000005 [ 39.931921] raw: ffffea00071c05a0 ffffea000727c220 ffff8801db000ac0 0000000000000000 [ 39.939781] page dumped because: kasan: bad access detected [ 39.945473] [ 39.947083] Memory state around the buggy address: [ 39.951998] ffff8801c74e2c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.959339] ffff8801c74e2d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.966682] >ffff8801c74e2d80: fb fb fb fb fb fb fb fb fb fb fb fb 00 00 00 00 [ 39.974020] ^ [ 39.979451] ffff8801c74e2e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 39.986794] ffff8801c74e2e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 39.994132] ================================================================== [ 40.001469] Disabling lock debugging due to kernel taint [ 40.006899] Kernel panic - not syncing: panic_on_warn set ... [ 40.006899] [ 40.014245] CPU: 1 PID: 3147 Comm: sshd Tainted: G B 4.15.0-rc4+ #138 [ 40.022106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.031437] Call Trace: [ 40.034011] dump_stack+0x194/0x257 [ 40.037629] ? arch_local_irq_restore+0x53/0x53 [ 40.042278] ? kasan_end_report+0x32/0x50 [ 40.046412] ? lock_downgrade+0x980/0x980 [ 40.050541] ? vsnprintf+0x1ed/0x1900 [ 40.054328] panic+0x1e4/0x41c [ 40.057504] ? refcount_error_report+0x214/0x214 [ 40.062243] ? add_taint+0x40/0x50 [ 40.065765] ? add_taint+0x1c/0x50 [ 40.069290] ? skb_free_head+0x74/0xb0 [ 40.073160] ? skb_free_head+0x74/0xb0 [ 40.077031] kasan_end_report+0x50/0x50 [ 40.080991] kasan_report_double_free+0x72/0x80 [ 40.085645] kasan_slab_free+0xa3/0xc0 [ 40.089515] kfree+0xca/0x250 [ 40.092608] skb_free_head+0x74/0xb0 [ 40.096307] skb_release_data+0x58c/0x790 [ 40.100445] ? skb_tx_error+0x2c0/0x2c0 [ 40.104399] ? check_noncircular+0x20/0x20 [ 40.108618] ? __lock_is_held+0xb6/0x140 [ 40.112668] skb_release_all+0x4a/0x60 [ 40.116541] consume_skb+0x153/0x490 [ 40.120242] ? alloc_skb_with_frags+0x750/0x750 [ 40.124898] ? virtqueue_get_buf_ctx+0x3b1/0x8b0 [ 40.129641] ? detach_buf+0x6a0/0x6a0 [ 40.133435] __dev_kfree_skb_any+0x85/0xa0 [ 40.137655] free_old_xmit_skbs.isra.28+0x15a/0x2c0 [ 40.142656] ? virtnet_cpu_down_prep+0x80/0x80 [ 40.147222] ? packet_rcv_fanout+0x7d0/0x7d0 [ 40.151618] ? dev_queue_xmit_nit+0x8af/0xc40 [ 40.156099] start_xmit+0x1b9/0x1650 [ 40.159805] ? virtnet_xdp+0x12a0/0x12a0 [ 40.163860] dev_hard_start_xmit+0x248/0xac0 [ 40.168262] ? validate_xmit_skb_list+0x120/0x120 [ 40.173093] ? perf_trace_lock_acquire+0x590/0x980 [ 40.178013] ? lock_acquire+0x1d5/0x580 [ 40.181973] ? lock_acquire+0x1d5/0x580 [ 40.185930] ? sch_direct_xmit+0x280/0x6d0 [ 40.190147] ? skb_csum_hwoffload_help+0x57/0xa0 [ 40.194890] ? lock_release+0xa40/0xa40 [ 40.198849] ? netif_skb_features+0x8e0/0x8e0 [ 40.203329] ? do_raw_spin_trylock+0x190/0x190 [ 40.207896] ? lock_acquire+0x1d5/0x580 [ 40.211860] sch_direct_xmit+0x31d/0x6d0 [ 40.215907] ? dev_deactivate_queue.constprop.29+0x260/0x260 [ 40.221697] __dev_queue_xmit+0x16f4/0x2070 [ 40.226010] ? netdev_pick_tx+0x300/0x300 [ 40.230145] ? check_noncircular+0x20/0x20 [ 40.234365] ? __lock_is_held+0xb6/0x140 [ 40.238414] ? __lock_acquire+0x664/0x3e00 [ 40.242721] ? update_load_avg+0x249/0x2d80 [ 40.247026] ? numa_migrate_preferred+0x250/0x250 [ 40.251855] ? print_irqtrace_events+0x270/0x270 [ 40.256600] ? ip_finish_output+0x85e/0xd10 [ 40.260905] ? netlbl_catmap_setrng+0xb0/0xb0 [ 40.265392] ? mark_held_locks+0xaf/0x100 [ 40.269524] ? ip_finish_output2+0xca6/0x1460 [ 40.274006] dev_queue_xmit+0x17/0x20 [ 40.277795] ip_finish_output2+0xece/0x1460 [ 40.282103] ? dst_output+0x140/0x140 [ 40.285888] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.290888] ? ipt_do_table+0xd04/0x1330 [ 40.294932] ? trace_hardirqs_on+0xd/0x10 [ 40.299067] ? __local_bh_enable_ip+0x121/0x230 [ 40.303719] ? ipt_do_table+0xd6f/0x1330 [ 40.307763] ? __local_bh_enable_ip+0x121/0x230 [ 40.312415] ? ipv4_mtu+0x28c/0x3d0 [ 40.316026] ? __lock_is_held+0xb6/0x140 [ 40.320087] ip_finish_output+0x85e/0xd10 [ 40.324734] ? ip_finish_output+0x85e/0xd10 [ 40.329044] ? ip_fragment.constprop.49+0x200/0x200 [ 40.334052] ? iptable_mangle_hook+0xa9/0x550 [ 40.338536] ? nf_hook_slow+0xd3/0x1a0 [ 40.342413] ip_output+0x1cc/0x860 [ 40.345940] ? ip_mc_output+0x1350/0x1350 [ 40.350083] ? ip_fragment.constprop.49+0x200/0x200 [ 40.355085] ip_local_out+0x95/0x160 [ 40.358784] ip_queue_xmit+0x8c6/0x18e0 [ 40.362745] ? ip_build_and_send_pkt+0xc30/0xc30 [ 40.367485] ? refcount_dec_if_one+0x20/0x20 [ 40.371883] ? __tcp_v4_send_check+0x1b8/0x350 [ 40.376447] ? tcp_options_write+0x228/0x940 [ 40.380841] tcp_transmit_skb+0x1b12/0x38b0 [ 40.385157] ? __tcp_select_window+0x900/0x900 [ 40.389725] ? __kernel_text_address+0xd/0x40 [ 40.394207] ? __lock_acquire+0x664/0x3e00 [ 40.398428] ? depot_save_stack+0x12c/0x490 [ 40.402744] ? tcp_small_queue_check.isra.26+0x31c/0x450 [ 40.408180] ? tcp_tso_segs+0x240/0x240 [ 40.412140] ? pvclock_read_flags+0x160/0x160 [ 40.416618] ? inet_sendmsg+0x11f/0x5e0 [ 40.420574] ? sock_sendmsg+0xca/0x110 [ 40.424444] ? sock_write_iter+0x31a/0x5d0 [ 40.428660] ? __vfs_write+0x684/0x970 [ 40.432530] ? vfs_write+0x189/0x510 [ 40.436224] ? SyS_write+0xef/0x220 [ 40.439835] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 40.444753] ? sched_clock_cpu+0x1b/0x170 [ 40.448884] ? tcp_init_tso_segs+0x114/0x1f0 [ 40.453277] tcp_write_xmit+0x680/0x5190 [ 40.457332] ? rcu_read_lock_sched_held+0x108/0x120 [ 40.462340] ? tcp_transmit_skb+0x38b0/0x38b0 [ 40.466819] ? __asan_register_globals+0x80/0xa0 [ 40.471573] ? find_held_lock+0x35/0x1d0 [ 40.475629] ? __might_fault+0x110/0x1d0 [ 40.479676] ? iov_iter_advance+0x2a1/0x13f0 [ 40.484077] ? lock_release+0xa40/0xa40 [ 40.488041] ? tcp_v4_md5_lookup+0x22/0x30 [ 40.492264] ? tcp_established_options+0x2c5/0x420 [ 40.497184] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 40.502710] __tcp_push_pending_frames+0xa0/0x250 [ 40.507541] tcp_push+0x538/0x770 [ 40.510984] ? tcp_splice_data_recv+0x1a0/0x1a0 [ 40.515652] ? skb_entail+0x5f6/0x8a0 [ 40.519443] ? iov_iter_advance+0x13f0/0x13f0 [ 40.523928] ? tcp_tx_timestamp+0x62/0x2a0 [ 40.528154] tcp_sendmsg_locked+0x2663/0x3b30 [ 40.532655] ? tcp_sendpage+0x60/0x60 [ 40.536453] ? rcu_read_lock_sched_held+0x108/0x120 [ 40.541460] ? __mark_inode_dirty+0x262/0x1170 [ 40.546038] ? print_irqtrace_events+0x270/0x270 [ 40.550775] ? find_held_lock+0x35/0x1d0 [ 40.554834] ? lock_sock_nested+0xa3/0x110 [ 40.559057] ? lock_acquire+0x1d5/0x580 [ 40.563012] ? tcp_sendmsg+0x21/0x50 [ 40.566733] ? mark_held_locks+0xaf/0x100 [ 40.570865] ? do_raw_spin_trylock+0x190/0x190 [ 40.575433] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.580435] ? lock_sock_nested+0x91/0x110 [ 40.584653] ? trace_hardirqs_on+0xd/0x10 [ 40.588786] ? __local_bh_enable_ip+0x121/0x230 [ 40.593447] tcp_sendmsg+0x2f/0x50 [ 40.596974] inet_sendmsg+0x11f/0x5e0 [ 40.600760] ? inet_recvmsg+0x5f0/0x5f0 [ 40.604722] ? selinux_socket_sendmsg+0x36/0x40 [ 40.609375] ? security_socket_sendmsg+0x89/0xb0 [ 40.614116] ? inet_recvmsg+0x5f0/0x5f0 [ 40.618076] sock_sendmsg+0xca/0x110 [ 40.621776] sock_write_iter+0x31a/0x5d0 [ 40.625821] ? sock_sendmsg+0x110/0x110 [ 40.629790] ? iov_iter_init+0xaf/0x1d0 [ 40.633752] __vfs_write+0x684/0x970 [ 40.637453] ? kernel_read+0x120/0x120 [ 40.641320] ? bpf_fd_pass+0x280/0x280 [ 40.645193] ? _cond_resched+0x14/0x30 [ 40.649066] ? selinux_file_permission+0x82/0x460 [ 40.653900] ? rw_verify_area+0xe5/0x2b0 [ 40.657945] ? __fdget_raw+0x20/0x20 [ 40.661643] vfs_write+0x189/0x510 [ 40.665171] SyS_write+0xef/0x220 [ 40.668610] ? SyS_read+0x220/0x220 [ 40.672219] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.677219] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 40.681964] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 40.686701] RIP: 0033:0x7f2f9b624370 [ 40.690394] RSP: 002b:00007ffecfa0f6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.698080] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f9b624370 [ 40.705329] RDX: 0000000000000038 RSI: 0000556c2725b450 RDI: 0000000000000003 [ 40.712580] RBP: 0000000000000018 R08: 0000000000000001 R09: 0101010101010101 [ 40.719833] R10: 0000000000000008 R11: 0000000000000246 R12: 0000556c26d40d20 [ 40.727087] R13: 0000556c27268b10 R14: 0000556c27268af0 R15: 0000000000000050 [ 40.734863] Dumping ftrace buffer: [ 40.738374] (ftrace buffer empty) [ 40.742051] Kernel Offset: disabled [ 40.745647] Rebooting in 86400 seconds..