DUID 00:04:4b:a6:d8:97:08:21:27:2e:fd:cf:3e:39:f6:c0:7f:1f forked to background, child pid 3216 [ 27.601927][ T3217] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.611462][ T3217] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.134' (ED25519) to the list of known hosts. executing program syzkaller login: [ 54.820584][ T3547] ------------[ cut here ]------------ [ 54.826227][ T3547] WARNING: CPU: 1 PID: 3547 at include/linux/skbuff.h:2641 skb_ensure_writable+0x2e6/0x430 [ 54.836283][ T3547] Modules linked in: [ 54.840200][ T3547] CPU: 1 PID: 3547 Comm: syz-executor865 Not tainted 6.1.86-syzkaller #0 [ 54.848630][ T3547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 54.858705][ T3547] RIP: 0010:skb_ensure_writable+0x2e6/0x430 [ 54.864625][ T3547] Code: c3 e8 4e 57 0e f9 4c 89 ef 31 f6 31 d2 b9 20 0a 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 9f 0f fe ff e8 2a 57 0e f9 <0f> 0b e9 44 fd ff ff 44 89 f7 44 89 e6 e8 78 58 0e f9 45 39 e6 0f [ 54.884264][ T3547] RSP: 0018:ffffc9000392f910 EFLAGS: 00010293 [ 54.890336][ T3547] RAX: ffffffff887c3826 RBX: ffff88802297ab40 RCX: ffff88807e615940 [ 54.898338][ T3547] RDX: 0000000000000000 RSI: 00000000fffffff7 RDI: 0000000000000000 [ 54.906340][ T3547] RBP: 00000000fffffff7 R08: ffffffff887c3563 R09: fffffbfff1ce6ede [ 54.914357][ T3547] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffffff7 [ 54.922505][ T3547] R13: ffff88802297ab40 R14: ffffc90000b1e020 R15: dffffc0000000000 [ 54.930492][ T3547] FS: 000055555654c380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 54.939439][ T3547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.946037][ T3547] CR2: 0000000020002c80 CR3: 0000000029186000 CR4: 00000000003506e0 [ 54.954025][ T3547] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.961980][ T3547] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.969965][ T3547] Call Trace: [ 54.973239][ T3547] [ 54.976188][ T3547] ? __warn+0x15a/0x520 [ 54.980346][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 54.985658][ T3547] ? report_bug+0x2af/0x500 [ 54.990182][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 54.995510][ T3547] ? handle_bug+0x3d/0x70 [ 54.999847][ T3547] ? exc_invalid_op+0x16/0x40 [ 55.004547][ T3547] ? asm_exc_invalid_op+0x16/0x20 [ 55.009579][ T3547] ? skb_ensure_writable+0x23/0x430 [ 55.014794][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 55.020086][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 55.025405][ T3547] ? __cant_sleep+0x270/0x270 [ 55.030103][ T3547] bpf_skb_pull_data+0x78/0x220 [ 55.035004][ T3547] bpf_prog_c054a5fa89446ea8+0x1c/0x3f [ 55.040469][ T3547] bpf_test_run+0x40f/0x8b0 [ 55.045027][ T3547] ? convert___skb_to_skb+0x610/0x610 [ 55.050417][ T3547] ? rcu_is_watching+0x11/0xb0 [ 55.055200][ T3547] ? eth_type_trans+0x320/0x6c0 [ 55.060053][ T3547] ? eth_get_headlen+0x240/0x240 [ 55.065012][ T3547] ? convert___skb_to_skb+0x41/0x610 [ 55.070302][ T3547] ? build_skb+0x112/0x250 [ 55.074744][ T3547] bpf_prog_test_run_skb+0xaf1/0x13a0 [ 55.080154][ T3547] ? cpu_online+0xb0/0xb0 [ 55.084505][ T3547] ? __fdget+0x14e/0x210 [ 55.088772][ T3547] ? cpu_online+0xb0/0xb0 [ 55.093082][ T3547] bpf_prog_test_run+0x32f/0x3a0 [ 55.098044][ T3547] __sys_bpf+0x3eb/0x6c0 [ 55.102295][ T3547] ? bpf_link_show_fdinfo+0x2d0/0x2d0 [ 55.107697][ T3547] ? print_irqtrace_events+0x210/0x210 [ 55.113160][ T3547] ? print_irqtrace_events+0x210/0x210 [ 55.118642][ T3547] ? syscall_enter_from_user_mode+0x2e/0x230 [ 55.124639][ T3547] ? lockdep_hardirqs_on+0x94/0x130 [ 55.129818][ T3547] __x64_sys_bpf+0x78/0x90 [ 55.134256][ T3547] do_syscall_64+0x3b/0xb0 [ 55.138675][ T3547] ? clear_bhb_loop+0x45/0xa0 [ 55.143403][ T3547] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 55.149308][ T3547] RIP: 0033:0x7f24c5a02669 [ 55.153767][ T3547] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.173409][ T3547] RSP: 002b:00007ffdd3f76618 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 55.181832][ T3547] RAX: ffffffffffffffda RBX: 00007ffdd3f767e8 RCX: 00007f24c5a02669 [ 55.189820][ T3547] RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 000000000000000a [ 55.197821][ T3547] RBP: 00007f24c5a75610 R08: 0000000000000000 R09: 00007ffdd3f767e8 [ 55.205809][ T3547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 55.213801][ T3547] R13: 00007ffdd3f767d8 R14: 0000000000000001 R15: 0000000000000001 [ 55.221764][ T3547] [ 55.224800][ T3547] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 55.232074][ T3547] CPU: 1 PID: 3547 Comm: syz-executor865 Not tainted 6.1.86-syzkaller #0 [ 55.240480][ T3547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 55.250513][ T3547] Call Trace: [ 55.253775][ T3547] [ 55.256687][ T3547] dump_stack_lvl+0x1e3/0x2cb [ 55.261352][ T3547] ? nf_tcp_handle_invalid+0x642/0x642 [ 55.266796][ T3547] ? panic+0x764/0x764 [ 55.270849][ T3547] ? vscnprintf+0x59/0x80 [ 55.275172][ T3547] panic+0x318/0x764 [ 55.279074][ T3547] ? __warn+0x169/0x520 [ 55.283215][ T3547] ? memcpy_page_flushcache+0xfc/0xfc [ 55.288589][ T3547] __warn+0x348/0x520 [ 55.292572][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 55.297863][ T3547] report_bug+0x2af/0x500 [ 55.302187][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 55.307466][ T3547] handle_bug+0x3d/0x70 [ 55.311617][ T3547] exc_invalid_op+0x16/0x40 [ 55.316113][ T3547] asm_exc_invalid_op+0x16/0x20 [ 55.320955][ T3547] RIP: 0010:skb_ensure_writable+0x2e6/0x430 [ 55.326838][ T3547] Code: c3 e8 4e 57 0e f9 4c 89 ef 31 f6 31 d2 b9 20 0a 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 9f 0f fe ff e8 2a 57 0e f9 <0f> 0b e9 44 fd ff ff 44 89 f7 44 89 e6 e8 78 58 0e f9 45 39 e6 0f [ 55.346434][ T3547] RSP: 0018:ffffc9000392f910 EFLAGS: 00010293 [ 55.352488][ T3547] RAX: ffffffff887c3826 RBX: ffff88802297ab40 RCX: ffff88807e615940 [ 55.360447][ T3547] RDX: 0000000000000000 RSI: 00000000fffffff7 RDI: 0000000000000000 [ 55.368418][ T3547] RBP: 00000000fffffff7 R08: ffffffff887c3563 R09: fffffbfff1ce6ede [ 55.376384][ T3547] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffffff7 [ 55.384348][ T3547] R13: ffff88802297ab40 R14: ffffc90000b1e020 R15: dffffc0000000000 [ 55.392329][ T3547] ? skb_ensure_writable+0x23/0x430 [ 55.397527][ T3547] ? skb_ensure_writable+0x2e6/0x430 [ 55.402805][ T3547] ? __cant_sleep+0x270/0x270 [ 55.407475][ T3547] bpf_skb_pull_data+0x78/0x220 [ 55.412323][ T3547] bpf_prog_c054a5fa89446ea8+0x1c/0x3f [ 55.417777][ T3547] bpf_test_run+0x40f/0x8b0 [ 55.422283][ T3547] ? convert___skb_to_skb+0x610/0x610 [ 55.427643][ T3547] ? rcu_is_watching+0x11/0xb0 [ 55.432396][ T3547] ? eth_type_trans+0x320/0x6c0 [ 55.437240][ T3547] ? eth_get_headlen+0x240/0x240 [ 55.442182][ T3547] ? convert___skb_to_skb+0x41/0x610 [ 55.447458][ T3547] ? build_skb+0x112/0x250 [ 55.451870][ T3547] bpf_prog_test_run_skb+0xaf1/0x13a0 [ 55.457250][ T3547] ? cpu_online+0xb0/0xb0 [ 55.461578][ T3547] ? __fdget+0x14e/0x210 [ 55.465810][ T3547] ? cpu_online+0xb0/0xb0 [ 55.470127][ T3547] bpf_prog_test_run+0x32f/0x3a0 [ 55.475062][ T3547] __sys_bpf+0x3eb/0x6c0 [ 55.479300][ T3547] ? bpf_link_show_fdinfo+0x2d0/0x2d0 [ 55.484674][ T3547] ? print_irqtrace_events+0x210/0x210 [ 55.490124][ T3547] ? print_irqtrace_events+0x210/0x210 [ 55.495581][ T3547] ? syscall_enter_from_user_mode+0x2e/0x230 [ 55.501548][ T3547] ? lockdep_hardirqs_on+0x94/0x130 [ 55.506741][ T3547] __x64_sys_bpf+0x78/0x90 [ 55.511147][ T3547] do_syscall_64+0x3b/0xb0 [ 55.515556][ T3547] ? clear_bhb_loop+0x45/0xa0 [ 55.520230][ T3547] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 55.526115][ T3547] RIP: 0033:0x7f24c5a02669 [ 55.530529][ T3547] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.550121][ T3547] RSP: 002b:00007ffdd3f76618 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 55.558522][ T3547] RAX: ffffffffffffffda RBX: 00007ffdd3f767e8 RCX: 00007f24c5a02669 [ 55.566480][ T3547] RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 000000000000000a [ 55.574441][ T3547] RBP: 00007f24c5a75610 R08: 0000000000000000 R09: 00007ffdd3f767e8 [ 55.582416][ T3547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 55.590399][ T3547] R13: 00007ffdd3f767d8 R14: 0000000000000001 R15: 0000000000000001 [ 55.598382][ T3547] [ 55.601574][ T3547] Kernel Offset: disabled [ 55.605897][ T3547] Rebooting in 86400 seconds..