------------[ cut here ]------------ WARNING: CPU: 1 PID: 23828 at net/core/skbuff.c:4398 skb_try_coalesce+0xeb7/0x1260 net/core/skbuff.c:4398 binder: 23850:23852 transaction failed 29189/-22, size 0-0 line 3138 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=23848 comm=syz-executor.5 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 23828 Comm: syz-executor.3 Not tainted 4.9.194+ #0 ffff8801c842f030 ffffffff81b67001 0000000000000000 ffffffff82a3b3c0 00000000ffffffff 0000000000000001 0000000000000009 ffff8801c842f110 ffffffff813fef3a 0000000041b58ab3 ffffffff82e32f55 ffffffff813fed61 Call Trace: [<0000000075d4ceee>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000075d4ceee>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000065b69cc7>] panic+0x1d9/0x3bd kernel/panic.c:180 [<000000000b17a3b1>] __warn.cold+0x2f/0x2f kernel/panic.c:546 [<00000000b57953f6>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589 [<000000007d3df652>] skb_try_coalesce+0xeb7/0x1260 net/core/skbuff.c:4398 [<00000000ba8e8f84>] tcp_try_coalesce+0x173/0x4e0 net/ipv4/tcp_input.c:4378 [<00000000498e3f62>] tcp_queue_rcv+0x129/0x5a0 net/ipv4/tcp_input.c:4630 [<000000002ed532b0>] tcp_data_queue+0x600/0x3810 net/ipv4/tcp_input.c:4739 [<000000006d848605>] tcp_rcv_established+0x55a/0x20b0 net/ipv4/tcp_input.c:5620 [<0000000048cf0529>] tcp_v6_do_rcv+0xcd9/0x10f0 net/ipv6/tcp_ipv6.c:1283 [<0000000000c954dc>] sk_backlog_rcv include/net/sock.h:881 [inline] [<0000000000c954dc>] __release_sock+0x138/0x390 net/core/sock.c:2060 [<000000002f6a4bd6>] release_sock+0x59/0x1c0 net/core/sock.c:2524 [<000000009d572980>] tcp_sendpage net/ipv4/tcp.c:1034 [inline] [<000000009d572980>] tcp_sendpage+0x6b4/0x18f0 net/ipv4/tcp.c:1019 [<00000000fc191331>] inet_sendpage+0x223/0x520 net/ipv4/af_inet.c:783 [<0000000084f91fac>] kernel_sendpage+0x95/0xf0 net/socket.c:3326 [<0000000036385b6f>] sock_sendpage+0x8b/0xc0 net/socket.c:803 [<00000000ca2cc306>] pipe_to_sendpage+0x28d/0x3d0 fs/splice.c:470 [<0000000082f1d200>] splice_from_pipe_feed fs/splice.c:521 [inline] [<0000000082f1d200>] __splice_from_pipe+0x351/0x790 fs/splice.c:645 [<0000000039238b47>] splice_from_pipe+0x108/0x170 fs/splice.c:680 [<00000000242ae38a>] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851 [<00000000e5fef908>] do_splice_from fs/splice.c:870 [inline] [<00000000e5fef908>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037 [<000000000638f185>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992 [<00000000b8c4fcc6>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080 [<00000000d30e6430>] do_sendfile+0x503/0xc00 fs/read_write.c:1402 [<00000000fec179f8>] SYSC_sendfile64 fs/read_write.c:1463 [inline] [<00000000fec179f8>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1449 [<0000000020592349>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000ccee0cfb>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..