Warning: Permanently added '10.128.1.62' (ECDSA) to the list of known hosts. executing program [ 36.820253][ T4308] ------------[ cut here ]------------ [ 36.821561][ T4308] Too BIG xdp->frame_sz = 131072 [ 36.823080][ T4308] WARNING: CPU: 0 PID: 4308 at net/core/filter.c:4069 bpf_xdp_adjust_tail+0x228/0x230 [ 36.825223][ T4308] Modules linked in: [ 36.826079][ T4308] CPU: 0 PID: 4308 Comm: syz-executor280 Not tainted 6.1.15-syzkaller #0 [ 36.827927][ T4308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 36.830227][ T4308] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 36.832025][ T4308] pc : bpf_xdp_adjust_tail+0x228/0x230 [ 36.833230][ T4308] lr : bpf_xdp_adjust_tail+0x224/0x230 [ 36.834372][ T4308] sp : ffff80001dcd74b0 [ 36.835268][ T4308] x29: ffff80001dcd74b0 x28: ffff0000c16efeef x27: 1ffff00003b9aee1 [ 36.837123][ T4308] x26: dfff800000000000 x25: ffff80001dcd7718 x24: 0000000000000000 [ 36.838879][ T4308] x23: 0000000000020000 x22: ffff0000c16efeef x21: ffff80001dcd7700 [ 36.840646][ T4308] x20: ffff80001dcd7708 x19: ffff800018061000 x18: ffff80001dcd68c0 [ 36.842367][ T4308] x17: 0000000000000000 x16: ffff8000122508ac x15: 0000000000000000 [ 36.844191][ T4308] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 [ 36.845972][ T4308] x11: ff80800008349608 x10: 0000000000000000 x9 : b6fdd2d00c68cf00 [ 36.847733][ T4308] x8 : b6fdd2d00c68cf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 36.849493][ T4308] x5 : ffff80001dcd6db8 x4 : ffff800015823840 x3 : ffff8000085890fc [ 36.851220][ T4308] x2 : 0000000000000001 x1 : 0000000100000200 x0 : ffffffffffffffea [ 36.852954][ T4308] Call trace: [ 36.853643][ T4308] bpf_xdp_adjust_tail+0x228/0x230 [ 36.854783][ T4308] bpf_prog_4add87e5301a4105+0x50/0x80 [ 36.856014][ T4308] bpf_dispatcher_xdp_func+0x30/0x44 [ 36.857217][ T4308] bpf_prog_run_generic_xdp+0x428/0xf44 [ 36.858440][ T4308] do_xdp_generic+0x348/0x634 [ 36.859568][ T4308] tun_get_user+0x2070/0x3ac8 [ 36.860582][ T4308] tun_chr_write_iter+0xfc/0x204 [ 36.861701][ T4308] vfs_write+0x610/0x914 [ 36.862576][ T4308] ksys_write+0x15c/0x26c [ 36.863524][ T4308] __arm64_sys_write+0x7c/0x90 [ 36.864538][ T4308] invoke_syscall+0x98/0x2c0 [ 36.865577][ T4308] el0_svc_common+0x138/0x258 [ 36.866637][ T4308] do_el0_svc+0x64/0x218 [ 36.867601][ T4308] el0_svc+0x58/0x168 [ 36.868462][ T4308] el0t_64_sync_handler+0x84/0xf0 [ 36.869500][ T4308] el0t_64_sync+0x18c/0x190 [ 36.870456][ T4308] irq event stamp: 15539 [ 36.871399][ T4308] hardirqs last enabled at (15538): [] __up_console_sem+0xb4/0x100 [ 36.873644][ T4308] hardirqs last disabled at (15539): [] el1_dbg+0x24/0x80 [ 36.875475][ T4308] softirqs last enabled at (15366): [] bpf_link_settle+0x80/0x148 [ 36.877511][ T4308] softirqs last disabled at (15476): [] local_bh_disable+0x10/0x34 [ 36.879549][ T4308] ---[ end trace 0000000000000000 ]--- [ 36.880862][ T4308] Illegal XDP return value 4294967274 on prog (id 1) dev syz_tun, expect packet loss!