------------[ cut here ]------------ WARNING: CPU: 0 PID: 28388 at net/ipv4/af_inet.c:153 inet_sock_destruct+0x6b9/0x880 net/ipv4/af_inet.c:153 Modules linked in: CPU: 0 PID: 28388 Comm: kworker/0:22 Not tainted 5.19.0-rc4-next-20220628-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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 df ff 8f f9 0f 0b e9 df fd ff ff e8 d3 ff 8f f9 0f 0b e9 30 fe ff ff e8 c7 ff 8f f9 <0f> 0b e9 6b fe ff ff e8 bb ff 8f f9 0f 0b e9 d8 fe ff ff e8 6f 04 RSP: 0018:ffffc90002e9fa88 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000001d0a8 RCX: 0000000000000000 RDX: ffff88801e961d40 RSI: ffffffff87eab749 RDI: 0000000000000005 RBP: ffff88803943e628 R08: 0000000000000005 R09: 0000000000000000 R10: 000000000001d0a8 R11: 0000000000000001 R12: ffff88803943e600 R13: ffff88803943e874 R14: 0000000000000003 R15: ffff8880898ea058 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0138ba000 CR3: 000000008d905000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sk_destruct+0x4d/0x710 net/core/sock.c:2068 sk_destruct net/core/sock.c:2113 [inline] __sk_free+0x1a4/0x4a0 net/core/sock.c:2124 sk_free+0x78/0xa0 net/core/sock.c:2135 sock_put include/net/sock.h:1914 [inline] __mptcp_close_ssk+0x4f5/0x700 net/mptcp/protocol.c:2356 __mptcp_destroy_sock+0x2d2/0x6b0 net/mptcp/protocol.c:2808 mptcp_worker+0x478/0xd70 net/mptcp/protocol.c:2568 process_one_work+0x991/0x1610 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:302