------------[ cut here ]------------ WARNING: CPU: 0 PID: 139 at net/ipv4/af_inet.c:153 inet_sock_destruct+0x6b9/0x880 net/ipv4/af_inet.c:153 Modules linked in: CPU: 0 PID: 139 Comm: kworker/0:2 Not tainted 5.19.0-rc7-syzkaller-00007-g353f7988dd84 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: events mptcp_worker RIP: 0010:inet_sock_destruct+0x6b9/0x880 net/ipv4/af_inet.c:153 Code: 41 8b 9c 24 28 02 00 00 e9 f2 fe ff ff e8 1f 84 90 f9 0f 0b e9 df fd ff ff e8 13 84 90 f9 0f 0b e9 30 fe ff ff e8 07 84 90 f9 <0f> 0b e9 6b fe ff ff e8 fb 83 90 f9 0f 0b e9 d8 fe ff ff e8 df 41 RSP: 0018:ffffc9000293fa88 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000009e108 RCX: 0000000000000000 RDX: ffff88801bad8000 RSI: ffffffff87e9e859 RDI: 0000000000000005 RBP: ffff88807f4de628 R08: 0000000000000005 R09: 0000000000000000 R10: 000000000009e108 R11: 0000000000000001 R12: ffff88807f4de600 R13: ffff88807f4de874 R14: 0000000000000003 R15: ffff8880796d8458 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f651c99c028 CR3: 0000000026a77000 CR4: 0000000000350ef0 Call Trace: __sk_destruct+0x4d/0x710 net/core/sock.c:2067 sk_destruct net/core/sock.c:2112 [inline] __sk_free+0x1a4/0x4a0 net/core/sock.c:2123 sk_free+0x78/0xa0 net/core/sock.c:2134 sock_put include/net/sock.h:1927 [inline] __mptcp_close_ssk+0x50f/0x780 net/mptcp/protocol.c:2351 __mptcp_destroy_sock+0x2d7/0x6b0 net/mptcp/protocol.c:2828 mptcp_worker+0x919/0xdf0 net/mptcp/protocol.c:2586 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306