BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.110/6322
caller is net_dm_packet_trace_kfree_skb_hit+0x119/0x350 net/core/drop_monitor.c:519
CPU: 2 UID: 0 PID: 6322 Comm: syz.3.110 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 check_preemption_disabled+0xd2/0xe0 lib/smp_processor_id.c:47
 net_dm_packet_trace_kfree_skb_hit+0x119/0x350 net/core/drop_monitor.c:519
 __do_trace_kfree_skb include/trace/events/skb.h:24 [inline]
 trace_kfree_skb+0x18b/0x230 include/trace/events/skb.h:24
 __sk_skb_reason_drop net/core/skbuff.c:1231 [inline]
 sk_skb_reason_drop+0xb7/0x1b0 net/core/skbuff.c:1249
 kfree_skb_reason include/linux/skbuff.h:1323 [inline]
 __skb_queue_purge_reason include/linux/skbuff.h:3470 [inline]
 skb_queue_purge_reason+0x2aa/0x420 net/core/skbuff.c:4040
 skb_queue_purge include/linux/skbuff.h:3483 [inline]
 packet_set_ring+0x547/0x1fb0 net/packet/af_packet.c:4655
 packet_setsockopt+0x11c4/0x2380 net/packet/af_packet.c:3873
 do_sock_setsockopt+0xf3/0x1d0 net/socket.c:2397
 __sys_setsockopt+0x195/0x220 net/socket.c:2422
 __do_sys_setsockopt net/socket.c:2428 [inline]
 __se_sys_setsockopt net/socket.c:2425 [inline]
 __x64_sys_setsockopt+0xbd/0x160 net/socket.c:2425
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f77caf9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f77cbe75028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f77cb226090 RCX: 00007f77caf9e159
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000005
RBP: 00007f77cb03503b R08: 000000000000001c R09: 0000000000000000
R10: 0000200000000080 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f77cb226128 R14: 00007f77cb226090 R15: 00007ffd320d7278
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.110/6322
caller is net_dm_packet_trace_kfree_skb_hit+0x119/0x350 net/core/drop_monitor.c:519
CPU: 2 UID: 0 PID: 6322 Comm: syz.3.110 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 check_preemption_disabled+0xd2/0xe0 lib/smp_processor_id.c:47
 net_dm_packet_trace_kfree_skb_hit+0x119/0x350 net/core/drop_monitor.c:519
 __do_trace_kfree_skb include/trace/events/skb.h:24 [inline]
 trace_kfree_skb+0x18b/0x230 include/trace/events/skb.h:24
 __sk_skb_reason_drop net/core/skbuff.c:1231 [inline]
 sk_skb_reason_drop+0xb7/0x1b0 net/core/skbuff.c:1249
 kfree_skb_reason include/linux/skbuff.h:1323 [inline]
 __skb_queue_purge_reason include/linux/skbuff.h:3470 [inline]
 skb_queue_purge_reason+0x2aa/0x420 net/core/skbuff.c:4040
 skb_queue_purge include/linux/skbuff.h:3483 [inline]
 packet_set_ring+0x547/0x1fb0 net/packet/af_packet.c:4655
 packet_setsockopt+0x11c4/0x2380 net/packet/af_packet.c:3873
 do_sock_setsockopt+0xf3/0x1d0 net/socket.c:2397
 __sys_setsockopt+0x195/0x220 net/socket.c:2422
 __do_sys_setsockopt net/socket.c:2428 [inline]
 __se_sys_setsockopt net/socket.c:2425 [inline]
 __x64_sys_setsockopt+0xbd/0x160 net/socket.c:2425
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f77caf9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f77cbe75028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f77cb226090 RCX: 00007f77caf9e159
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000005
RBP: 00007f77cb03503b R08: 000000000000001c R09: 0000000000000000
R10: 0000200000000080 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f77cb226128 R14: 00007f77cb226090 R15: 00007ffd320d7278
 </TASK>