BUG: using smp_processor_id() in preemptible [00000000] code: syz.8.2454/12488 caller is dev_sw_netstats_tx_add include/linux/netdevice.h:3086 [inline] caller is ieee80211_tx_control_port+0xac7/0x1100 net/mac80211/tx.c:6656 CPU: 0 UID: 0 PID: 12488 Comm: syz.8.2454 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 check_preemption_disabled+0xcd/0xd0 lib/smp_processor_id.c:47 dev_sw_netstats_tx_add include/linux/netdevice.h:3086 [inline] ieee80211_tx_control_port+0xac7/0x1100 net/mac80211/tx.c:6656 rdev_tx_control_port net/wireless/rdev-ops.h:783 [inline] nl80211_tx_control_port+0x624/0x960 net/wireless/nl80211.c:18603 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7bd/0x940 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x7c3/0xae0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] ____sys_sendmsg+0x54e/0x850 net/socket.c:2713 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2767 __sys_sendmsg net/socket.c:2799 [inline] __do_sys_sendmsg net/socket.c:2804 [inline] __se_sys_sendmsg net/socket.c:2802 [inline] __x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2802 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ae439e159 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:00007f9ae519e028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9ae4625fa0 RCX: 00007f9ae439e159 RDX: 0000000000000000 RSI: 0000200000003700 RDI: 0000000000000003 RBP: 00007f9ae443503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9ae4626038 R14: 00007f9ae4625fa0 R15: 00007ffe10e80b98