Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 35.147838] kasan: CONFIG_KASAN_INLINE enabled [ 35.152300] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.165183] Modules linked in: [ 35.168490] CPU: 1 PID: 2092 Comm: syz-executor900 Not tainted 4.4.167+ #4 [ 35.175483] task: ffff8800b68faf80 task.stack: ffff8800b68d0000 [ 35.181534] RIP: 0010:[] [] tcp_sendpage+0x40a/0x17e0 [ 35.190046] RSP: 0018:ffff8800b68d7910 EFLAGS: 00010206 [ 35.195472] RAX: 000000000000000f RBX: 000000000000fd58 RCX: 1ffff1003ad382db [ 35.202717] RDX: 0000000000000000 RSI: ffffffff823f5919 RDI: 0000000000000078 [ 35.210005] RBP: ffff8800b68d7a70 R08: ffff8800b68fb890 R09: 0000000000000000 [ 35.217254] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff823f5520 [ 35.224501] R13: ffff8801d69c1480 R14: 0000000000000000 R15: dffffc0000000000 [ 35.231749] FS: 0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:00000000f77aeb40 [ 35.239951] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 35.245808] CR2: 00000000f776cdb0 CR3: 00000000b72d1000 CR4: 00000000001606b0 [ 35.253054] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.260407] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.267659] Stack: [ 35.269780] ffffffff82ea72e0 23b54e7df45071b9 0000000000000000 ffff8800b68fb848 [ 35.277800] fffffbfff0634d24 ffff8800b68faf80 dffffc0000000000 0000000000000000 [ 35.285835] ffff8801d69c1868 ffff8800b68d79c8 ffff8800b68fb840 0000000600000007 [ 35.293846] Call Trace: [ 35.296416] [] ? sk_stream_alloc_skb+0x5d0/0x5d0 [ 35.302808] [] ? check_preemption_disabled+0x3b/0x200 [ 35.309735] [] ? inet_sendpage+0x14b/0x510 [ 35.315679] [] ? sk_stream_alloc_skb+0x5d0/0x5d0 [ 35.322060] [] inet_sendpage+0x221/0x510 [ 35.327764] [] ? inet_sendpage+0x7b/0x510 [ 35.333535] [] kernel_sendpage+0x93/0xf0 [ 35.339220] [] ? inet_getname+0x3b0/0x3b0 [ 35.344993] [] sock_sendpage+0x8c/0xc0 [ 35.350510] [] ? kernel_sendpage+0xf0/0xf0 [ 35.356371] [] pipe_to_sendpage+0x266/0x330 [ 35.362357] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 35.369002] [] ? splice_from_pipe_next.part.3+0x248/0x310 [ 35.376164] [] __splice_from_pipe+0x364/0x790 [ 35.382284] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 35.388938] [] splice_from_pipe+0xf9/0x170 [ 35.394798] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 35.401459] [] ? splice_shrink_spd+0x60/0x60 [ 35.407719] [] ? security_file_permission+0x8f/0x1e0 [ 35.414454] [] generic_splice_sendpage+0x3c/0x50 [ 35.420836] [] ? splice_from_pipe+0x170/0x170 [ 35.426954] [] SyS_splice+0xde1/0x1430 [ 35.432470] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 35.439209] [] ? compat_SyS_vmsplice+0x160/0x160 [ 35.445589] [] ? do_fast_syscall_32+0xdb/0xa80 [ 35.451896] [] ? compat_SyS_vmsplice+0x160/0x160 [ 35.458277] [] do_fast_syscall_32+0x31e/0xa80 [ 35.464395] [] sysenter_flags_fixed+0xd/0x1a [ 35.470437] Code: ff ff ff 4c 0f 44 f0 e8 35 19 f1 fe 48 85 db 0f 84 d4 02 00 00 e8 27 19 f1 fe 49 8d 7e 78 8b 9d 58 ff ff ff 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 03 0f 8e be 0f 00 00 41 2b 5e 78 [ 35.497791] RIP [] tcp_sendpage+0x40a/0x17e0 [ 35.503970] RSP [ 35.507657] ---[ end trace d7be9c337288e171 ]--- [ 35.512441] Kernel panic - not syncing: Fatal exception [ 35.518356] Kernel Offset: disabled [ 35.521984] Rebooting in 86400 seconds..