lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor:14356] Modules linked in: irq event stamp: 9266406 hardirqs last enabled at (9266405): [] console_emit_next_record kernel/printk/printk.c:2920 [inline] hardirqs last enabled at (9266405): [] console_flush_all+0x5e4/0xafc kernel/printk/printk.c:2979 hardirqs last disabled at (9266406): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (9266406): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (9266388): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (9266388): [] handle_softirqs+0xa3c/0xbfc kernel/softirq.c:582 softirqs last disabled at (9262931): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 CPU: 1 PID: 14356 Comm: syz-executor Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:176 [inline] pc : arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] pc : console_emit_next_record kernel/printk/printk.c:2920 [inline] pc : console_flush_all+0x608/0xafc kernel/printk/printk.c:2979 lr : console_emit_next_record kernel/printk/printk.c:2920 [inline] lr : console_flush_all+0x604/0xafc kernel/printk/printk.c:2979 sp : ffff8000982166a0 x29: ffff8000982167c0 x28: ffff800090c070c0 x27: 0000000000000001 x26: ffff800090c07118 x25: dfff800000000000 x24: 1ffff00012180e1a x23: ffff800098216880 x22: ffff800090c070d0 x21: 0000000000000000 x20: 0000000000000000 x19: 00000000000000c0 x18: ffff8000982165d8 x17: 0000000000000000 x16: ffff80008032d32c x15: 0000000000000001 x14: 1ffff00011e95a80 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000efa43c80 x7 : ffff800080376470 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000000080 x0 : 0000000000000000 Call trace: __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] console_emit_next_record kernel/printk/printk.c:2920 [inline] console_flush_all+0x608/0xafc kernel/printk/printk.c:2979 console_unlock+0xfc/0x3d4 kernel/printk/printk.c:3048 vprintk_emit+0x1e8/0x344 kernel/printk/printk.c:2348 vprintk_default+0xa0/0xe4 kernel/printk/printk.c:2363 vprintk+0x200/0x2d4 kernel/printk/printk_safe.c:45 _printk+0xdc/0x128 kernel/printk/printk.c:2373 start_creating+0x28c/0x2e0 debugfs_create_dir+0x30/0x3cc fs/debugfs/inode.c:593 hsr_debugfs_init+0x34/0xfc net/hsr/hsr_debugfs.c:81 hsr_dev_finalize+0x664/0x804 net/hsr/hsr_device.c:636 hsr_newlink+0x5d8/0x734 net/hsr/hsr_netlink.c:123 rtnl_newlink_create net/core/rtnetlink.c:3510 [inline] __rtnl_newlink net/core/rtnetlink.c:3730 [inline] rtnl_newlink+0x1184/0x1bcc net/core/rtnetlink.c:3743 rtnetlink_rcv_msg+0x748/0xe64 net/core/rtnetlink.c:6635 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2564 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6653 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x7a0/0xa84 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x374/0x4f4 net/socket.c:2192 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2200 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 42 Comm: kworker/u8:2 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events_unbound macvlan_process_broadcast pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kasan_poison_slab+0x8c/0x98 mm/kasan/common.c:154 lr : kasan_poison_slab include/linux/kasan.h:130 [inline] lr : allocate_slab+0x138/0x2f0 mm/slub.c:2450 sp : ffff8000800075f0 x29: ffff8000800075f0 x28: 0000000000082820 x27: 0000000000000000 x26: 0000000000000001 x25: 00000000ffffffff x24: 0000000000082820 x23: 0000000000000002 x22: ffff0001fea89ac0 x21: 0000000000020015 x20: fffffdffc3ec5500 x19: ffff0000c1bd4a00 x18: ffff0001fea8a9d0 x17: 0000000000040012 x16: ffff80008b07c280 x15: 0000000000000001 x14: 1fffe000367a75f0 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000367a75f1 x10: 0000000000001000 x9 : 2000800000000800 x8 : ffff60001f62b000 x7 : fcfcfcfcfcfcfcfc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : ffffffffffffffc0 x1 : 00000000000000fc x0 : ffff60001f62a800 Call trace: __kasan_poison_slab+0x8c/0x98 mm/kasan/common.c:154 new_slab mm/slub.c:2481 [inline] ___slab_alloc+0x784/0xf38 mm/slub.c:3667 __slab_alloc+0x74/0xd0 mm/slub.c:3757 __slab_alloc_node mm/slub.c:3810 [inline] slab_alloc_node mm/slub.c:3990 [inline] kmem_cache_alloc_node_noprof+0x2b0/0x3a4 mm/slub.c:4045 kmalloc_reserve+0xdc/0x280 net/core/skbuff.c:575 __alloc_skb+0x20c/0x420 net/core/skbuff.c:666 alloc_skb include/linux/skbuff.h:1308 [inline] lapb_send_control+0x48/0x320 net/lapb/lapb_subr.c:227 lapb_establish_data_link+0x94/0xec lapb_state3_machine net/lapb/lapb_in.c:445 [inline] lapb_data_input+0xc88/0x19b0 net/lapb/lapb_in.c:550 lapb_data_received+0x48/0x10c net/lapb/lapb_iface.c:399 lapbeth_rcv+0x304/0x59c drivers/net/wan/lapbether.c:141 __netif_receive_skb_one_core net/core/dev.c:5625 [inline] __netif_receive_skb+0x18c/0x3c8 net/core/dev.c:5739 process_backlog+0x3e0/0x798 net/core/dev.c:6068 __napi_poll+0xb4/0x3fc net/core/dev.c:6722 napi_poll net/core/dev.c:6791 [inline] net_rx_action+0x604/0xe4c net/core/dev.c:6907 handle_softirqs+0x2e4/0xbfc kernel/softirq.c:554 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 do_softirq+0x90/0xf8 kernel/softirq.c:455 __local_bh_enable_ip+0x288/0x44c kernel/softirq.c:382 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33 netif_rx+0xb0/0xf8 net/core/dev.c:5210 macvlan_broadcast+0x32c/0x4b8 drivers/net/macvlan.c:290 macvlan_process_broadcast+0x464/0x6c8 drivers/net/macvlan.c:338 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x970/0xecc kernel/workqueue.c:3409 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860