random: crng init done kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 2044 Comm: syz-executor533 Not tainted 4.9.141+ #1 task: ffff8801d00cc740 task.stack: ffff8801cea68000 RIP: 0010:[] [] do_tcp_sendpages net/ipv4/tcp.c:924 [inline] RIP: 0010:[] [] tcp_sendpage+0x35d/0x1910 net/ipv4/tcp.c:1033 RSP: 0018:ffff8801cea6f930 EFLAGS: 00010206 RAX: 000000000000000f RBX: 0000000000000000 RCX: 1ffff1003a27c2eb RDX: 0000000000000000 RSI: ffffffff824e0eab RDI: 0000000000000078 RBP: ffff8801cea6fa98 R08: ffff8801d00ccff0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000fd58 R13: ffff8801d42ec880 R14: ffff8801d13e1500 R15: dffffc0000000000 FS: 00007f58bb9e7700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020020000 CR3: 00000001d10ba000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801cea6f940 ffffffff81243c87 0000000000000246 ffff8801d00cc740 ffffffff830cc2e0 fffffbfff067d37c 0000000000000000 ffff8801d00ccff0 ffffed003a0199fd 0000000000000000 ffff8801d13e18e8 ffff8801cea6f9f0 Call Trace: [] inet_sendpage+0x221/0x510 net/ipv4/af_inet.c:787 [] kernel_sendpage+0x93/0xf0 net/socket.c:3334 [] sock_sendpage+0x8c/0xc0 net/socket.c:802 [] pipe_to_sendpage+0x266/0x330 fs/splice.c:470 [] splice_from_pipe_feed fs/splice.c:521 [inline] [] __splice_from_pipe+0x316/0x710 fs/splice.c:645 [] splice_from_pipe+0xf9/0x170 fs/splice.c:680 [] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851 [] do_splice_from fs/splice.c:870 [inline] [] do_splice fs/splice.c:1166 [inline] [] SYSC_splice fs/splice.c:1416 [inline] [] SyS_splice+0xe4d/0x14d0 fs/splice.c:1399 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: ff ff 48 0f 44 d8 e8 c3 ab e3 fe 4d 85 e4 0f 84 f0 04 00 00 e8 b5 ab e3 fe 48 8d 7b 78 44 8b a5 58 ff ff ff 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 03 0f 8e 06 11 00 00 44 2b 63 78 RIP [] do_tcp_sendpages net/ipv4/tcp.c:924 [inline] RIP [] tcp_sendpage+0x35d/0x1910 net/ipv4/tcp.c:1033 RSP ---[ end trace cbb814e2a57e6682 ]---