Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. [ 25.734591] urandom_read: 1 callbacks suppressed [ 25.734595] random: sshd: uninitialized urandom read (32 bytes read) [ 25.826044] audit: type=1400 audit(1566394163.604:7): avc: denied { map } for pid=1762 comm="syz-execprog" path="/root/syz-execprog" 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 2019/08/21 13:29:24 parsed 1 programs [ 26.648207] audit: type=1400 audit(1566394164.424:8): avc: denied { map } for pid=1762 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=5035 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 26.980807] random: cc1: uninitialized urandom read (8 bytes read) 2019/08/21 13:29:25 executed programs: 0 [ 27.686335] audit: type=1400 audit(1566394165.464:9): avc: denied { map } for pid=1762 comm="syz-execprog" path="/root/syzkaller-shm825573424" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 29.870129] ------------[ cut here ]------------ [ 29.875248] kernel BUG at ./include/linux/skbuff.h:1406! [ 29.880729] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 29.886743] Modules linked in: [ 29.890068] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.139+ #36 [ 29.896446] task: (ptrval) task.stack: (ptrval) [ 29.902629] RIP: 0010:tcp_fragment+0x12c6/0x13e0 [ 29.907505] RSP: 0018:ffff8881d7507bf8 EFLAGS: 00010206 [ 29.913103] RAX: ffff8881d6672f00 RBX: ffff8881cf180000 RCX: 1ffff11039e30049 [ 29.920630] RDX: 0000000000000100 RSI: ffff8881d2409680 RDI: ffff8881d2409688 [ 29.928018] RBP: ffff8881d2409680 R08: 0000000001080020 R09: ffff88821ffff048 [ 29.935549] R10: ffff88821ffff057 R11: ffff88821ffff050 R12: 0000000000000000 [ 29.942936] R13: 0000000000006800 R14: 0000000001080020 R15: ffff8881cf180250 [ 29.950285] FS: 0000000000000000(0000) GS:ffff8881d7500000(0000) knlGS:0000000000000000 [ 29.958870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.965138] CR2: 000000000075c000 CR3: 000000020c626004 CR4: 00000000001606a0 [ 29.972381] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.979649] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.987007] Call Trace: [ 29.989600] [ 29.991730] tcp_write_wakeup+0x32b/0x570 [ 29.996266] ? tcp_write_timer_handler+0x780/0x780 [ 30.001412] ? tcp_write_timer_handler+0x780/0x780 [ 30.006317] tcp_send_probe0+0x46/0x3cc [ 30.010262] ? tcp_write_timer_handler+0x780/0x780 [ 30.015443] tcp_write_timer_handler+0x687/0x780 [ 30.020169] tcp_write_timer+0xc9/0x170 [ 30.024122] call_timer_fn+0x15b/0x6a0 [ 30.027979] ? collect_expired_timers+0x280/0x280 [ 30.032804] ? check_preemption_disabled+0x35/0x1f0 [ 30.037793] ? _raw_spin_unlock_irq+0x24/0x50 [ 30.042257] ? tcp_write_timer_handler+0x780/0x780 [ 30.047460] expire_timers+0x227/0x4c0 [ 30.051462] run_timer_softirq+0x1eb/0x5d0 [ 30.055665] ? expire_timers+0x4c0/0x4c0 [ 30.059705] ? check_preemption_disabled+0x35/0x1f0 [ 30.064701] ? check_preemption_disabled+0x35/0x1f0 [ 30.070102] __do_softirq+0x234/0x9ec [ 30.073993] ? check_preemption_disabled+0x35/0x1f0 [ 30.078995] irq_exit+0x114/0x150 [ 30.082479] smp_apic_timer_interrupt+0x1a7/0x650 [ 30.087310] apic_timer_interrupt+0x8c/0xa0 [ 30.091602] [ 30.093816] RIP: 0010:native_safe_halt+0x13/0x20 [ 30.098553] RSP: 0018:ffff8881d668fd60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 30.106333] RAX: 0000000000000000 RBX: ffffffff8962e088 RCX: 0000000000000000 [ 30.113704] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8881d667372c [ 30.121593] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 30.129016] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.136379] R13: 0000000000000000 R14: ffff8881d6672f00 R15: dffffc0000000000 [ 30.143757] default_idle+0x61/0x3b0 [ 30.147591] do_idle+0x2e6/0x390 [ 30.151198] ? arch_cpu_idle_exit+0x40/0x40 [ 30.155494] cpu_startup_entry+0xc6/0xd0 [ 30.159666] ? cpu_in_idle+0x20/0x20 [ 30.163562] ? trace_hardirqs_on_caller+0x37b/0x540 [ 30.168762] start_secondary+0x3a8/0x4b0 [ 30.172798] ? set_cpu_sibling_map+0x1110/0x1110 [ 30.177531] secondary_startup_64+0xa5/0xb0 [ 30.181840] Code: ea 03 80 3c 02 00 0f 85 2c 01 00 00 4c 8b bb 58 02 00 00 ba 00 00 00 00 4c 3b 7c 24 18 4c 0f 44 fa e9 bd fc ff ff e8 fa ee da fe <0f> 0b e8 13 b2 fd fe e9 4d ef ff ff e8 09 b2 fd fe e9 2d f2 ff [ 30.201150] RIP: tcp_fragment+0x12c6/0x13e0 RSP: ffff8881d7507bf8 [ 30.207543] ---[ end trace 9c297ddc04642433 ]--- [ 30.212516] Kernel panic - not syncing: Fatal exception in interrupt [ 30.219591] Kernel Offset: 0x5e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 30.230396] Rebooting in 86400 seconds..