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: 2056 Comm: syz-executor411 Not tainted 4.9.145+ #81
task: ffff8801cfdd5f00 task.stack: ffff8801cec50000
RIP: 0010:[<ffffffff824e2e3d>]  [<ffffffff824e2e3d>] do_tcp_sendpages net/ipv4/tcp.c:924 [inline]
RIP: 0010:[<ffffffff824e2e3d>]  [<ffffffff824e2e3d>] tcp_sendpage+0x35d/0x1910 net/ipv4/tcp.c:1033
RSP: 0018:ffff8801cec57930  EFLAGS: 00010206
RAX: 000000000000000f RBX: 0000000000000000 RCX: 1ffff1003976a19b
RDX: 0000000000000000 RSI: ffffffff824e2e2b RDI: 0000000000000078
RBP: ffff8801cec57a98 R08: ffff8801cfdd67b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000fd58
R13: ffff8801cc880880 R14: ffff8801cbb50a80 R15: dffffc0000000000
FS:  00007f970023b700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020020000 CR3: 00000001ceeed000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801cec57940 ffffffff81243de7 0000000000000246 ffff8801cfdd5f00
 ffffffff830d03e0 fffffbfff067de68 0000000000000000 ffff8801cfdd67b0
 ffffed0039fbacf5 0000000000000000 ffff8801cbb50e68 ffff8801cec579f0
Call Trace:
 [<ffffffff82598831>] inet_sendpage+0x221/0x510 net/ipv4/af_inet.c:787
 [<ffffffff822a2293>] kernel_sendpage+0x93/0xf0 net/socket.c:3334
 [<ffffffff822a237c>] sock_sendpage+0x8c/0xc0 net/socket.c:802
 [<ffffffff815aa016>] pipe_to_sendpage+0x266/0x330 fs/splice.c:470
 [<ffffffff815ae076>] splice_from_pipe_feed fs/splice.c:521 [inline]
 [<ffffffff815ae076>] __splice_from_pipe+0x316/0x710 fs/splice.c:645
 [<ffffffff815afb89>] splice_from_pipe+0xf9/0x170 fs/splice.c:680
 [<ffffffff815afc3c>] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851
 [<ffffffff815b0dbd>] do_splice_from fs/splice.c:870 [inline]
 [<ffffffff815b0dbd>] do_splice fs/splice.c:1166 [inline]
 [<ffffffff815b0dbd>] SYSC_splice fs/splice.c:1416 [inline]
 [<ffffffff815b0dbd>] SyS_splice+0xe4d/0x14d0 fs/splice.c:1399
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82819e13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: ff ff 48 0f 44 d8 e8 a3 8d e3 fe 4d 85 e4 0f 84 f0 04 00 00 e8 95 8d 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  [<ffffffff824e2e3d>] do_tcp_sendpages net/ipv4/tcp.c:924 [inline]
RIP  [<ffffffff824e2e3d>] tcp_sendpage+0x35d/0x1910 net/ipv4/tcp.c:1033
 RSP <ffff8801cec57930>
---[ end trace 00fcb2ab2bbc0809 ]---