------------[ cut here ]------------ WARNING: CPU: 1 PID: 8867 at net/hsr/hsr_forward.c:602 handle_std_frame net/hsr/hsr_forward.c:602 [inline] WARNING: CPU: 1 PID: 8867 at net/hsr/hsr_forward.c:602 hsr_fill_frame_info+0x364/0x4d0 net/hsr/hsr_forward.c:630 Modules linked in: CPU: 1 UID: 0 PID: 8867 Comm: syz.4.563 Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : handle_std_frame net/hsr/hsr_forward.c:602 [inline] pc : hsr_fill_frame_info+0x364/0x4d0 net/hsr/hsr_forward.c:630 lr : handle_std_frame net/hsr/hsr_forward.c:602 [inline] lr : hsr_fill_frame_info+0x364/0x4d0 net/hsr/hsr_forward.c:630 sp : ffff800080017270 x29: ffff800080017270 x28: 1fffe00019fa4c8f x27: ffff8000800173a0 x26: 0000000000002f89 x25: ffff0000c873d600 x24: ffff0000ed102cc0 x23: dfff800000000000 x22: 1fffe000190e7ac4 x21: ffff0000c873d620 x20: 0000000000000000 x19: ffff8000800173a0 x18: ffff800080016e60 x17: 00000000000456a0 x16: ffff800080569b84 x15: 0000000000000002 x14: 1ffff00010002e75 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700010002e77 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c71b3c80 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000000 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: handle_std_frame net/hsr/hsr_forward.c:602 [inline] hsr_fill_frame_info+0x364/0x4d0 net/hsr/hsr_forward.c:630 fill_frame_info net/hsr/hsr_forward.c:700 [inline] hsr_forward_skb+0x5e0/0x21e8 net/hsr/hsr_forward.c:715 hsr_handle_frame+0x440/0x6e4 net/hsr/hsr_slave.c:70 __netif_receive_skb_core+0xf3c/0x373c net/core/dev.c:5555 __netif_receive_skb_list_core+0x264/0x754 net/core/dev.c:5737 __netif_receive_skb_list net/core/dev.c:5804 [inline] netif_receive_skb_list_internal+0x844/0xb34 net/core/dev.c:5896 gro_normal_list include/net/gro.h:515 [inline] napi_complete_done+0x2a8/0x6d0 net/core/dev.c:6247 gro_cell_poll+0x170/0x1a0 net/core/gro_cells.c:66 __napi_poll+0xb4/0x3fc net/core/dev.c:6772 napi_poll net/core/dev.c:6841 [inline] net_rx_action+0x6a8/0xf4c net/core/dev.c:6963 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 tun_get_user+0x23d8/0x3adc drivers/net/tun.c:1978 tun_chr_write_iter+0xfc/0x204 drivers/net/tun.c:2052 new_sync_write fs/read_write.c:497 [inline] vfs_write+0x940/0xc80 fs/read_write.c:590 ksys_write+0x15c/0x26c fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:652 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 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 irq event stamp: 1367 hardirqs last enabled at (1366): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:387 hardirqs last disabled at (1367): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (1354): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1355): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---