Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. [ 23.635606] urandom_read: 1 callbacks suppressed [ 23.635609] random: sshd: uninitialized urandom read (32 bytes read) [ 23.726109] audit: type=1400 audit(1566245794.459:7): avc: denied { map } for pid=1760 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 2019/08/19 20:16:35 parsed 1 programs [ 24.527293] audit: type=1400 audit(1566245795.259:8): avc: denied { map } for pid=1760 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 [ 24.869473] random: cc1: uninitialized urandom read (8 bytes read) 2019/08/19 20:16:36 executed programs: 0 [ 25.722353] audit: type=1400 audit(1566245796.459:9): avc: denied { map } for pid=1760 comm="syz-execprog" path="/root/syzkaller-shm927987927" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 28.010089] ------------[ cut here ]------------ [ 28.014891] kernel BUG at ./include/linux/skbuff.h:1406! [ 28.020368] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 28.026228] Modules linked in: [ 28.029393] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.139+ #34 [ 28.035763] task: (ptrval) task.stack: (ptrval) [ 28.041793] RIP: 0010:tcp_fragment+0x12c6/0x13e0 [ 28.046515] RSP: 0018:ffff8881dba07bf8 EFLAGS: 00010206 [ 28.051845] RAX: ffffffffbc630c40 RBX: ffff8881d41e8a80 RCX: 1ffff1103a83d199 [ 28.059085] RDX: 0000000000000100 RSI: ffff8881d2d8b680 RDI: ffff8881d2d8b688 [ 28.066328] RBP: ffff8881d2d8b680 R08: 0000000001080020 R09: ffff88821fffd008 [ 28.073566] R10: ffff88821fffd017 R11: ffff88821fffd010 R12: 0000000000000000 [ 28.080802] R13: 0000000000001880 R14: 0000000001080020 R15: ffff8881d41e8cd0 [ 28.088042] FS: 0000000000000000(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 28.096236] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.102087] CR2: 000000000075c000 CR3: 0000000049826003 CR4: 00000000001606b0 [ 28.109329] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.116566] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.123801] Call Trace: [ 28.126355] [ 28.128478] tcp_write_wakeup+0x32b/0x570 [ 28.132591] ? tcp_write_timer_handler+0x780/0x780 [ 28.137487] ? tcp_write_timer_handler+0x780/0x780 [ 28.142382] tcp_send_probe0+0x46/0x3cc [ 28.146325] ? tcp_write_timer_handler+0x780/0x780 [ 28.151223] tcp_write_timer_handler+0x687/0x780 [ 28.155945] tcp_write_timer+0xc9/0x170 [ 28.159891] call_timer_fn+0x15b/0x6a0 [ 28.163922] ? collect_expired_timers+0x280/0x280 [ 28.168824] ? check_preemption_disabled+0x35/0x1f0 [ 28.173812] ? _raw_spin_unlock_irq+0x24/0x50 [ 28.178277] ? tcp_write_timer_handler+0x780/0x780 [ 28.183172] expire_timers+0x227/0x4c0 [ 28.187026] run_timer_softirq+0x1eb/0x5d0 [ 28.191232] ? expire_timers+0x4c0/0x4c0 [ 28.195258] ? check_preemption_disabled+0x35/0x1f0 [ 28.200340] ? check_preemption_disabled+0x35/0x1f0 [ 28.205332] __do_softirq+0x234/0x9ec [ 28.209103] ? check_preemption_disabled+0x35/0x1f0 [ 28.214091] irq_exit+0x114/0x150 [ 28.217512] smp_apic_timer_interrupt+0x1a7/0x650 [ 28.222325] apic_timer_interrupt+0x8c/0xa0 [ 28.226617] [ 28.228825] RIP: 0010:native_safe_halt+0x13/0x20 [ 28.233547] RSP: 0018:ffffffffbc607d48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 28.241222] RAX: 0000000000000000 RBX: ffffffffbca2dcc8 RCX: 0000000000000000 [ 28.248458] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffffbc63146c [ 28.255712] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 28.262949] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 28.270185] R13: 0000000000000000 R14: ffffffffbc630c40 R15: dffffc0000000000 [ 28.277434] default_idle+0x61/0x3b0 [ 28.281115] do_idle+0x2e6/0x390 [ 28.284450] ? arch_cpu_idle_exit+0x40/0x40 [ 28.288751] cpu_startup_entry+0xc6/0xd0 [ 28.292780] ? cpu_in_idle+0x20/0x20 [ 28.296460] ? preempt_count_add+0xb8/0x180 [ 28.300750] ? trace_event_define_fields_x86_irq_vector+0x28/0x28 [ 28.306947] start_kernel+0x712/0x74a [ 28.310717] ? mem_encrypt_init+0x5/0x5 [ 28.314660] ? memcpy_orig+0x54/0x110 [ 28.318430] secondary_startup_64+0xa5/0xb0 [ 28.322722] 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 7a f7 da fe <0f> 0b e8 93 ba fd fe e9 4d ef ff ff e8 89 ba fd fe e9 2d f2 ff [ 28.341759] RIP: tcp_fragment+0x12c6/0x13e0 RSP: ffff8881dba07bf8 [ 28.347974] ---[ end trace 83706a51f5a85058 ]--- [ 28.352710] Kernel panic - not syncing: Fatal exception in interrupt [ 28.359635] Kernel Offset: 0x39200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 28.370529] Rebooting in 86400 seconds..