watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.3:9663] Modules linked in: irq event stamp: 20930537 hardirqs last enabled at (20930536): [] __local_bh_enable_ip+0x258/0x4d0 kernel/softirq.c:388 hardirqs last disabled at (20930537): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (1408): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1408): [] __do_softirq+0xcc4/0xf60 kernel/softirq.c:587 softirqs last disabled at (1414): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (1414): [] batadv_tt_local_resize_to_mtu+0x60/0x150 net/batman-adv/translation-table.c:3950 CPU: 1 PID: 9663 Comm: syz-executor.3 Not tainted 5.15.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:78 [inline] pc : __local_bh_enable_ip+0x260/0x4d0 kernel/softirq.c:390 lr : __local_bh_enable_ip+0x258/0x4d0 kernel/softirq.c:388 sp : ffff80001ed268a0 x29: ffff80001ed268b0 x28: dfff800000000000 x27: 1fffe0001b392b01 x26: ffff0000d9c95818 x25: ffff0000d9c95808 x24: 0000000000000001 x23: 1fffe0001b291a09 x22: dfff800000000000 x21: ffff800011856810 x20: 0000000000000000 x19: ffff0000d948d048 x18: 0000000000000202 x17: ff808000083386a0 x16: ffff8000082eebe4 x15: ffff8000083386a0 x14: 1ffff0000293806a x13: ffffffffffffffff x12: 0000000000040000 x11: 000000000003ffff x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000000e0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008046738 x2 : 0000000000000002 x1 : ffff800011b5b5e0 x0 : ffff80019fef2000 Call trace: arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] __local_bh_enable_ip+0x260/0x4d0 kernel/softirq.c:388 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0xf8/0x180 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:408 [inline] batadv_tt_local_purge_pending_clients+0x278/0x300 net/batman-adv/translation-table.c:3674 batadv_tt_local_resize_to_mtu+0xa4/0x150 net/batman-adv/translation-table.c:3958 batadv_update_min_mtu net/batman-adv/hard-interface.c:635 [inline] batadv_hardif_activate_interface+0x1a8/0x234 net/batman-adv/hard-interface.c:662 batadv_hardif_enable_interface+0x4e8/0x770 net/batman-adv/hard-interface.c:745 batadv_softif_slave_add+0x80/0x148 net/batman-adv/soft-interface.c:839 do_set_master net/core/rtnetlink.c:2523 [inline] __rtnl_newlink net/core/rtnetlink.c:3479 [inline] rtnl_newlink+0x1570/0x1ab8 net/core/rtnetlink.c:3510 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5587 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2533 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5605 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1952 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584