WARNING: CPU: 3 PID: 4391 at net/ipv4/af_inet.c:153 inet_sock_destruct+0x6b9/0x880 net/ipv4/af_inet.c:153 Modules linked in: CPU: 3 PID: 4391 Comm: kworker/3:6 Not tainted 5.19.0-rc6-syzkaller-00115-g4a57a8400075 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 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 2c 90 f9 0f 0b e9 df fd ff ff e8 d3 2c 90 f9 0f 0b e9 30 fe ff ff e8 c7 2c 90 f9 <0f> 0b e9 6b fe ff ff e8 bb 2c 90 f9 0f 0b e9 d8 fe ff ff e8 bf 47 RSP: 0018:ffffc9000413fa88 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000000a65e0 RCX: 0000000000000000 RDX: ffff888062530080 RSI: ffffffff87e96e69 RDI: 0000000000000005 RBP: ffff88801caba528 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000000a65e0 R11: 0000000000000001 R12: ffff88801caba500 R13: ffff88801caba774 R14: 0000000000000003 R15: ffff88801527de58 FS: 0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020003000 CR3: 000000001e18b000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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