__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
 el0_svc_common.constprop.0+0xf0/0x2c0 arch/arm64/kernel/syscall.c:129
 do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:174
 el0_svc_compat+0x24/0x3c arch/arm64/kernel/entry-common.c:494
 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:503
 el0_sync_compat+0x174/0x180 arch/arm64/kernel/entry.S:708
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.1/8169
caller is debug_smp_processor_id+0x20/0x30 lib/smp_processor_id.c:64
CPU: 1 PID: 8169 Comm: syz-executor.1 Not tainted 5.11.0-syzkaller-07579-g31caf8b2a847 #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 ptrauth_strip_insn_pac arch/arm64/include/asm/pointer_auth.h:76 [inline]
 dump_backtrace+0x0/0x3e0 arch/arm64/kernel/stacktrace.c:109
 show_stack+0x18/0x70 arch/arm64/kernel/stacktrace.c:191
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x110/0x188 lib/dump_stack.c:120
 check_preemption_disabled+0x10c/0x170 lib/smp_processor_id.c:53
 debug_smp_processor_id+0x20/0x30 lib/smp_processor_id.c:64
 radix_tree_node_alloc.constprop.0+0x208/0x3a0 lib/radix-tree.c:261
 radix_tree_extend+0x158/0x354 lib/radix-tree.c:423
 idr_get_free+0x370/0x910 lib/radix-tree.c:1491
 idr_alloc_u32+0x120/0x280 lib/idr.c:46
 qrtr_port_assign net/qrtr/qrtr.c:725 [inline]
 __qrtr_bind.isra.0+0x234/0x490 net/qrtr/qrtr.c:788
 qrtr_autobind net/qrtr/qrtr.c:819 [inline]
 qrtr_autobind net/qrtr/qrtr.c:807 [inline]
 qrtr_connect+0x1f0/0x290 net/qrtr/qrtr.c:1091
 __sys_connect_file+0x130/0x17c net/socket.c:1835
 __sys_connect+0x108/0x130 net/socket.c:1852
 __do_sys_connect net/socket.c:1862 [inline]
 __se_sys_connect net/socket.c:1859 [inline]
 __arm64_sys_connect+0x70/0xa4 net/socket.c:1859
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
 el0_svc_common.constprop.0+0xf0/0x2c0 arch/arm64/kernel/syscall.c:129
 do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:174
 el0_svc_compat+0x24/0x3c arch/arm64/kernel/entry-common.c:494
 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:503
 el0_sync_compat+0x174/0x180 arch/arm64/kernel/entry.S:708