watchdog: BUG: soft lockup - CPU#1 stuck for 30s! [syz-executor:4135] Modules linked in: irq event stamp: 115744 hardirqs last enabled at (115743): [] mod_lruvec_page_state include/linux/vmstat.h:497 [inline] hardirqs last enabled at (115743): [] kmalloc_large_node+0x10c/0x190 mm/slub.c:4424 hardirqs last disabled at (115744): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (114850): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (114850): [] mac80211_hwsim_new_radio+0xc4/0x38cc drivers/net/wireless/mac80211_hwsim.c:3066 softirqs last disabled at (114848): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (114848): [] mac80211_hwsim_new_radio+0xac/0x38cc drivers/net/wireless/mac80211_hwsim.c:3064 CPU: 1 PID: 4135 Comm: syz-executor Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : lock_acquire+0x280/0x77c lr : lockdep_recursion_finish kernel/locking/lockdep.c:436 [inline] lr : lock_acquire+0x24c/0x77c kernel/locking/lockdep.c:5625 sp : ffff8000205b6cc0 x29: ffff8000205b6da0 x28: ffff7000040b6da0 x27: 0000000000000000 x26: ffff0001b4196d00 x25: ffff800014df6b40 x24: 0000000000000000 x23: 0000000100000000 x22: ffff0000c72f51c0 x21: ffff800014ac3d00 x20: dfff800000000000 x19: ffff0001b4196d00 x18: 0000000000000000 x17: 0000000000000000 x16: ffff800011b4e58c x15: 000000000000000c x14: 1ffff0000296e06c x13: dfff800000000000 x12: 00000000c581242c x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000080 x8 : 00000000000000c0 x7 : ffff8000088c6780 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : ffff800011cabfc0 x0 : 0000000000000001 Call trace: arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline] lock_acquire+0x280/0x77c kernel/locking/lockdep.c:5626 __fs_reclaim_acquire mm/page_alloc.c:4580 [inline] fs_reclaim_acquire+0xf0/0x1d0 mm/page_alloc.c:4594 might_alloc include/linux/sched/mm.h:206 [inline] slab_pre_alloc_hook+0x38/0xe8 mm/slab.h:492 slab_alloc_node mm/slub.c:3134 [inline] __kmalloc_node+0xbc/0x5b8 mm/slub.c:4451 kmalloc_node include/linux/slab.h:614 [inline] kvmalloc_node+0x88/0x204 mm/util.c:619 kvmalloc include/linux/mm.h:805 [inline] kvzalloc include/linux/mm.h:813 [inline] netif_alloc_netdev_queues net/core/dev.c:10220 [inline] alloc_netdev_mqs+0x4b8/0x9d4 net/core/dev.c:10907 ieee80211_if_add+0x1098/0x1d4c net/mac80211/iface.c:1949 ieee80211_register_hw+0x2180/0x2eec net/mac80211/main.c:1323 mac80211_hwsim_new_radio+0x1ba4/0x38cc drivers/net/wireless/mac80211_hwsim.c:3374 hwsim_new_radio_nl+0x9d8/0xea0 drivers/net/wireless/mac80211_hwsim.c:3950 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0xc18/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2489 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1337 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] __sys_sendto+0x388/0x4d0 net/socket.c:2063 __do_sys_sendto net/socket.c:2075 [inline] __se_sys_sendto net/socket.c:2071 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2071 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584