RBP: 00007f890d75e1d0 R08: 00000000200001c0 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffe639fe0f R14: 00007f890d75e300 R15: 0000000000022000 BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.1/15486 caller is radix_tree_node_alloc.constprop.0+0x24d/0x350 lib/radix-tree.c:261 CPU: 1 PID: 15486 Comm: syz-executor.1 Not tainted 5.12.0-rc4-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 radix_tree_extend+0x22a/0x480 lib/radix-tree.c:423 idr_get_free+0x6f7/0xa60 lib/radix-tree.c:1491 idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 qrtr_port_assign net/qrtr/qrtr.c:728 [inline] __qrtr_bind.isra.0+0x4ed/0x650 net/qrtr/qrtr.c:791 qrtr_autobind net/qrtr/qrtr.c:822 [inline] qrtr_autobind+0xaf/0xf0 net/qrtr/qrtr.c:810 qrtr_sendmsg+0x1d6/0x820 net/qrtr/qrtr.c:930 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 __sys_sendto+0x21c/0x320 net/socket.c:1977 __do_sys_sendto net/socket.c:1989 [inline] __se_sys_sendto net/socket.c:1985 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1985 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:00007f890d75e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f890d75e1d0 R08: 00000000200001c0 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffe639fe0f R14: 00007f890d75e300 R15: 0000000000022000