------------[ cut here ]------------ WARNING: CPU: 0 PID: 14005 at net/core/skbuff.c:5295 skb_try_coalesce+0xff1/0x1580 Modules linked in: CPU: 0 PID: 14005 Comm: syz-executor.0 Not tainted 5.17.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_try_coalesce+0xff1/0x1580 net/core/skbuff.c:5295 Code: b0 f9 e9 51 f1 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ed f1 ff ff 4c 89 ff e8 19 48 b0 f9 e9 e0 f1 ff ff e8 8f 98 63 f9 <0f> 0b e9 9e fb ff ff 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c e2 f2 ff RSP: 0018:ffffc900049aef10 EFLAGS: 00010246 RAX: ffffffff88220161 RBX: 00000000fffffee8 RCX: 0000000000040000 RDX: ffffc90002ed2000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000000004 R08: ffffffff8821fcf8 R09: ffffed100fbb5ac3 R10: ffffed100fbb5ac3 R11: 0000000000000000 R12: 0000000000000068 R13: 0000000000000068 R14: ffff88806c077640 R15: dffffc0000000000 FS: 00007f068d0a0700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000c000 CR3: 000000004774e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_try_coalesce+0x31c/0x970 net/ipv4/tcp_input.c:4651 tcp_queue_rcv net/ipv4/tcp_input.c:4914 [inline] tcp_data_queue+0x157e/0x8480 net/ipv4/tcp_input.c:5025 tcp_rcv_established+0x9f7/0x22b0 net/ipv4/tcp_input.c:5947 tcp_v4_do_rcv+0x476/0xa10 net/ipv4/tcp_ipv4.c:1719 sk_backlog_rcv include/net/sock.h:1037 [inline] __release_sock+0x1d8/0x4c0 net/core/sock.c:2779 release_sock+0x5d/0x1c0 net/core/sock.c:3311 sk_wait_data+0x25e/0x4b0 net/core/sock.c:2821 tcp_recvmsg_locked+0x1006/0x2d50 net/ipv4/tcp.c:2459 tcp_recvmsg+0x254/0x890 net/ipv4/tcp.c:2574 inet_recvmsg+0x156/0x270 net/ipv4/af_inet.c:850 sock_recvmsg_nosec net/socket.c:948 [inline] sock_recvmsg net/socket.c:966 [inline] ____sys_recvmsg+0x2b0/0x5e0 net/socket.c:2632 ___sys_recvmsg net/socket.c:2674 [inline] __sys_recvmsg+0x348/0x8b0 net/socket.c:2704 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f068e74c049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f068d0a0168 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007f068e85f030 RCX: 00007f068e74c049 RDX: 0000000000000100 RSI: 0000000020001500 RDI: 0000000000000003 RBP: 00007f068e7a608d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1749159f R14: 00007f068d0a0300 R15: 0000000000022000