R13: 000000000000000b R14: 00007fc809503f60 R15: 00007ffe335e8e08 socket: no more sockets ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 0 PID: 26533 at lib/refcount.c:28 refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 Modules linked in: CPU: 0 PID: 26533 Comm: syz.1.521 Not tainted 6.10.0-rc5-syzkaller-01200-gcda91d5b911a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 Code: e0 9b 1f 8c e8 77 61 a9 fc 90 0f 0b 90 90 eb 99 e8 fb 32 e7 fc c6 05 0e 52 e9 0a 01 90 48 c7 c7 40 9c 1f 8c e8 57 61 a9 fc 90 <0f> 0b 90 90 e9 76 ff ff ff e8 d8 32 e7 fc c6 05 e8 51 e9 0a 01 90 RSP: 0018:ffffc90003407d30 EFLAGS: 00010246 RAX: c03ef58ee344f200 RBX: ffff888047488080 RCX: ffff888029989e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000003 R08: ffffffff81585822 R09: fffffbfff1c39994 R10: dffffc0000000000 R11: fffffbfff1c39994 R12: 00000000ffffffe9 R13: 1ffff11008e91005 R14: ffff888047488028 R15: ffff888047488000 FS: 00007fc80a1a56c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc809504030 CR3: 00000000268c4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inet_create+0xbaf/0xe70 __sock_create+0x490/0x920 net/socket.c:1571 sock_create net/socket.c:1622 [inline] __sys_socket_create net/socket.c:1659 [inline] __sys_socket+0x150/0x3c0 net/socket.c:1706 __do_sys_socket net/socket.c:1720 [inline] __se_sys_socket net/socket.c:1718 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1718 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc809375bd9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc80a1a5048 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fc809503f60 RCX: 00007fc809375bd9 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007fc80a1a50a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007fc809503f60 R15: 00007ffe335e8e08