------------[ cut here ]------------ WARNING: CPU: 0 PID: 4437 at kernel/softirq.c:401 __local_bh_enable_ip+0x25c/0x380 kernel/softirq.c:401 Modules linked in: CPU: 0 PID: 4437 Comm: syz.4.5 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 224000c5 (nzCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __local_bh_enable_ip+0x25c/0x380 kernel/softirq.c:401 lr : __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] lr : _raw_spin_unlock_bh+0x48/0x58 kernel/locking/spinlock.c:210 sp : ffff800020fd6810 x29: ffff800020fd6820 x28: 1fffe00019b84cb8 x27: 1fffe00019b84cd9 x26: dfff800000000000 x25: 1fffe000198a76f1 x24: 0000000000000000 x23: dfff800000000000 x22: 1fffe000198a76f1 x21: ffff80000fe24824 x20: 0000000000000201 x19: ffff0000cc53b788 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082e7b10 x15: ffff800017cd9fc0 x14: ffff0000cc53c218 x13: ffff0000cc53c290 x12: 0000000000000001 x11: 1fffe00019b84cb9 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000100000203 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000183894d8 x4 : 0000000000000008 x3 : ffff8000082e7c24 x2 : 0000000000000001 x1 : 0000000000000201 x0 : ffff80000fe24824 Call trace: __local_bh_enable_ip+0x25c/0x380 kernel/softirq.c:401 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x48/0x58 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_produce_bh include/linux/ptr_ring.h:164 [inline] page_pool_recycle_in_ring net/core/page_pool.c:545 [inline] page_pool_put_defragged_page+0x4d0/0xae8 net/core/page_pool.c:632 page_pool_put_page include/net/page_pool.h:326 [inline] page_pool_put_full_page include/net/page_pool.h:334 [inline] __xdp_return+0x3ac/0x524 net/core/xdp.c:384 xdp_return_frame+0x90/0x264 net/core/xdp.c:419 tun_ptr_free drivers/net/tun.c:617 [inline] __ptr_ring_swap_queue include/linux/ptr_ring.h:570 [inline] ptr_ring_resize_multiple include/linux/ptr_ring.h:641 [inline] tun_queue_resize drivers/net/tun.c:3666 [inline] tun_device_event+0x8e4/0xe80 drivers/net/tun.c:3686 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455 call_netdevice_notifiers_info net/core/dev.c:2001 [inline] call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] dev_change_tx_queue_len+0x170/0x2c8 net/core/dev.c:8823 do_setlink+0xcd4/0x32c4 net/core/rtnetlink.c:2856 rtnl_group_changelink net/core/rtnetlink.c:3361 [inline] __rtnl_newlink net/core/rtnetlink.c:3618 [inline] rtnl_newlink+0xce0/0x1a1c net/core/rtnetlink.c:3655 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6153 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6171 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5b8/0x918 net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmsg+0x25c/0x320 net/socket.c:2602 __do_sys_sendmsg net/socket.c:2611 [inline] __se_sys_sendmsg net/socket.c:2609 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 4825 hardirqs last enabled at (4823): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (4823): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (4824): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (4824): [] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (4788): [] inet6_fill_ifla6_attrs+0xc70/0x1b6c net/ipv6/addrconf.c:5770 softirqs last disabled at (4825): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (4825): [] ptr_ring_produce_bh include/linux/ptr_ring.h:162 [inline] softirqs last disabled at (4825): [] page_pool_recycle_in_ring net/core/page_pool.c:545 [inline] softirqs last disabled at (4825): [] page_pool_put_defragged_page+0x350/0xae8 net/core/page_pool.c:632 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 0 PID: 4437 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x34/0x44 kernel/locking/irqflag-debug.c:10 Modules linked in: CPU: 0 PID: 4437 Comm: syz.4.5 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : warn_bogus_irq_restore+0x34/0x44 kernel/locking/irqflag-debug.c:10 lr : warn_bogus_irq_restore+0x34/0x44 kernel/locking/irqflag-debug.c:10 sp : ffff800020fd6960 x29: ffff800020fd6960 x28: 0000000000000001 x27: 1fffe0001e524930 x26: 0000000000000000 x25: dfff800000000000 x24: 1fffe0001e524931 x23: 0000000000000001 x22: ffff0000f6da5d00 x21: ffff0000f2924988 x20: ffff0000f2924908 x19: 0000000000000000 x18: ffff800011abbcc0 x17: 0000000000000000 x16: ffff8000082d22d4 x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000007ffff x10: ffff80002b433000 x9 : 0d4499c88fcb0600 x8 : 0d4499c88fcb0600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020fd63f8 x4 : ffff8000151a4820 x3 : ffff800008311cf4 x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: warn_bogus_irq_restore+0x34/0x44 kernel/locking/irqflag-debug.c:10 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0xa0/0xac kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] ptr_ring_resize_multiple include/linux/ptr_ring.h:644 [inline] tun_queue_resize drivers/net/tun.c:3666 [inline] tun_device_event+0xbf8/0xe80 drivers/net/tun.c:3686 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455 call_netdevice_notifiers_info net/core/dev.c:2001 [inline] call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] dev_change_tx_queue_len+0x170/0x2c8 net/core/dev.c:8823 do_setlink+0xcd4/0x32c4 net/core/rtnetlink.c:2856 rtnl_group_changelink net/core/rtnetlink.c:3361 [inline] __rtnl_newlink net/core/rtnetlink.c:3618 [inline] rtnl_newlink+0xce0/0x1a1c net/core/rtnetlink.c:3655 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6153 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6171 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5b8/0x918 net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmsg+0x25c/0x320 net/socket.c:2602 __do_sys_sendmsg net/socket.c:2611 [inline] __se_sys_sendmsg net/socket.c:2609 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 11558 hardirqs last enabled at (11557): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (11558): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (11530): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (11530): [] ptr_ring_produce_bh include/linux/ptr_ring.h:164 [inline] softirqs last enabled at (11530): [] page_pool_recycle_in_ring net/core/page_pool.c:545 [inline] softirqs last enabled at (11530): [] page_pool_put_defragged_page+0x4d0/0xae8 net/core/page_pool.c:632 softirqs last disabled at (11528): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (11528): [] ptr_ring_produce_bh include/linux/ptr_ring.h:162 [inline] softirqs last disabled at (11528): [] page_pool_recycle_in_ring net/core/page_pool.c:545 [inline] softirqs last disabled at (11528): [] page_pool_put_defragged_page+0x350/0xae8 net/core/page_pool.c:632 ---[ end trace 0000000000000000 ]--- IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready