RBP: 00007f147acd11d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000a9fb1f R14: 00007f147acd1300 R15: 0000000000022000 BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.4/18287 caller is radix_tree_node_alloc.constprop.0+0x24d/0x350 lib/radix-tree.c:261 CPU: 0 PID: 18287 Comm: syz-executor.4 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 check_preemption_disabled+0x142/0x150 lib/smp_processor_id.c:53 radix_tree_node_alloc.constprop.0+0x24d/0x350 lib/radix-tree.c:261 idr_get_free+0x554/0xa60 lib/radix-tree.c:1504 idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 qrtr_port_assign net/qrtr/qrtr.c:738 [inline] __qrtr_bind.isra.0+0x141/0x650 net/qrtr/qrtr.c:791 qrtr_bind+0x1c1/0x250 net/qrtr/qrtr.c:840 __sys_bind+0x1e9/0x250 net/socket.c:1637 __do_sys_bind net/socket.c:1648 [inline] __se_sys_bind net/socket.c:1646 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1646 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466459 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f147acd1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 000000000000000c RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f147acd11d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000a9fb1f R14: 00007f147acd1300 R15: 0000000000022000