[ 464.398256][T24629] device nr0 entered promiscuous mode [ 464.855662][T24685] device nr0 entered promiscuous mode [ 464.876638][T24652] device nr0 entered promiscuous mode [ 464.902682][T24693] device nr0 entered promiscuous mode [ 465.206954][T24698] device nr0 entered promiscuous mode [ 465.756676][T24722] device nr0 entered promiscuous mode [ 465.766988][T24720] device nr0 entered promiscuous mode [ 468.764550][ T704] device hsr_slave_0 left promiscuous mode [ 468.805703][ T704] device hsr_slave_1 left promiscuous mode [ 468.884160][ T704] device bridge_slave_1 left promiscuous mode [ 468.891761][ T704] bridge0: port 2(bridge_slave_1) entered disabled state [ 468.955432][ T704] device bridge_slave_0 left promiscuous mode [ 468.962676][ T704] bridge0: port 1(bridge_slave_0) entered disabled state [ 470.047703][ T704] team0 (unregistering): Port device team_slave_1 removed [ 470.064257][ T704] team0 (unregistering): Port device team_slave_0 removed [ 470.096893][ T704] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 470.152814][ T704] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 470.255917][ T704] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.116' (ECDSA) to the list of known hosts. [ 470.952599][T24805] device nr0 entered promiscuous mode [ 471.204256][T24815] device nr0 entered promiscuous mode [ 471.550836][T24828] device nr0 entered promiscuous mode [ 471.817697][T24840] device nr0 entered promiscuous mode [ 472.076095][T24855] device nr0 entered promiscuous mode [ 472.239835][T24857] ===================================================== [ 472.247514][T24857] BUG: KMSAN: uninit-value in llc_rcv+0xf97/0x1290 [ 472.254299][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Not tainted 5.11.0-rc7-syzkaller #0 [ 472.263273][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 472.274143][T24857] Call Trace: [ 472.277655][T24857] dump_stack+0x1df/0x240 [ 472.282366][T24857] kmsan_report+0xfb/0x1e0 [ 472.287058][T24857] __msan_warning+0x5f/0xa0 [ 472.291826][T24857] llc_rcv+0xf97/0x1290 [ 472.296442][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 472.303269][T24857] netif_receive_skb+0xe88/0xf30 [ 472.308770][T24857] tun_get_user+0x70eb/0x7470 [ 472.314582][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 472.320255][T24857] tun_chr_write_iter+0x34e/0x400 [ 472.326123][T24857] ? tun_chr_read_iter+0x530/0x530 [ 472.331496][T24857] vfs_write+0x1508/0x1710 [ 472.336415][T24857] ksys_write+0x267/0x450 [ 472.341245][T24857] __se_sys_write+0x92/0xb0 [ 472.346044][T24857] __x64_sys_write+0x4a/0x70 [ 472.350826][T24857] do_syscall_64+0xa2/0x120 [ 472.355498][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 472.361945][T24857] RIP: 0033:0x440109 [ 472.366799][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 472.388401][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 472.398126][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 472.406380][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 472.415329][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 472.424437][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 472.433820][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 472.442260][T24857] [ 472.444586][T24857] Uninit was created at: [ 472.449095][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 472.455079][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 472.460013][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 472.466373][T24857] __alloc_skb+0x2e5/0xaf0 [ 472.471924][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 472.477864][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 472.483978][T24857] tun_get_user+0xe95/0x7470 [ 472.488951][T24857] tun_chr_write_iter+0x34e/0x400 [ 472.494321][T24857] vfs_write+0x1508/0x1710 [ 472.498822][T24857] ksys_write+0x267/0x450 [ 472.503797][T24857] __se_sys_write+0x92/0xb0 [ 472.508685][T24857] __x64_sys_write+0x4a/0x70 [ 472.513452][T24857] do_syscall_64+0xa2/0x120 [ 472.518230][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 472.524727][T24857] ===================================================== [ 472.532090][T24857] Disabling lock debugging due to kernel taint [ 472.538850][T24857] ===================================================== [ 472.549078][T24857] BUG: KMSAN: uninit-value in llc_rcv+0x1218/0x1290 [ 472.562627][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 472.579870][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 472.596355][T24857] Call Trace: [ 472.604446][T24857] dump_stack+0x1df/0x240 [ 472.612300][T24857] kmsan_report+0xfb/0x1e0 [ 472.621395][T24857] __msan_warning+0x5f/0xa0 [ 472.629461][T24857] llc_rcv+0x1218/0x1290 [ 472.637626][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 472.645771][T24857] netif_receive_skb+0xe88/0xf30 [ 472.654469][T24857] tun_get_user+0x70eb/0x7470 [ 472.662705][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 472.671303][T24857] tun_chr_write_iter+0x34e/0x400 [ 472.679295][T24857] ? tun_chr_read_iter+0x530/0x530 [ 472.687806][T24857] vfs_write+0x1508/0x1710 [ 472.695680][T24857] ksys_write+0x267/0x450 [ 472.703946][T24857] __se_sys_write+0x92/0xb0 [ 472.711973][T24857] __x64_sys_write+0x4a/0x70 [ 472.720331][T24857] do_syscall_64+0xa2/0x120 [ 472.728253][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 472.736881][T24857] RIP: 0033:0x440109 [ 472.744571][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 472.770911][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 472.779690][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 472.788620][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 472.797151][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 472.806548][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 472.815459][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 472.824369][T24857] [ 472.831781][T24857] Uninit was created at: [ 472.840077][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 472.849477][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 472.858308][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 472.866525][T24857] __alloc_skb+0x2e5/0xaf0 [ 472.875111][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 472.883197][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 472.891896][T24857] tun_get_user+0xe95/0x7470 [ 472.899870][T24857] tun_chr_write_iter+0x34e/0x400 [ 472.908472][T24857] vfs_write+0x1508/0x1710 [ 472.916489][T24857] ksys_write+0x267/0x450 [ 472.925764][T24857] __se_sys_write+0x92/0xb0 [ 472.933799][T24857] __x64_sys_write+0x4a/0x70 [ 472.942329][T24857] do_syscall_64+0xa2/0x120 [ 472.950388][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 472.959389][T24857] ===================================================== [ 472.968137][T24857] ===================================================== [ 472.976229][T24857] BUG: KMSAN: uninit-value in __pskb_pull_tail+0x5d3/0x1e10 [ 472.986327][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 472.999588][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 473.010524][T24857] Call Trace: [ 473.019480][T24857] dump_stack+0x1df/0x240 [ 473.027666][T24857] kmsan_report+0xfb/0x1e0 [ 473.036325][T24857] __msan_warning+0x5f/0xa0 [ 473.044258][T24857] __pskb_pull_tail+0x5d3/0x1e10 [ 473.053616][T24857] llc_rcv+0x102d/0x1290 [ 473.061711][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 473.070783][T24857] netif_receive_skb+0xe88/0xf30 [ 473.079000][T24857] tun_get_user+0x70eb/0x7470 [ 473.088220][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 473.096388][T24857] tun_chr_write_iter+0x34e/0x400 [ 473.105682][T24857] ? tun_chr_read_iter+0x530/0x530 [ 473.113805][T24857] vfs_write+0x1508/0x1710 [ 473.122296][T24857] ksys_write+0x267/0x450 [ 473.130269][T24857] __se_sys_write+0x92/0xb0 [ 473.138677][T24857] __x64_sys_write+0x4a/0x70 [ 473.146929][T24857] do_syscall_64+0xa2/0x120 [ 473.152400][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 473.162305][T24857] RIP: 0033:0x440109 [ 473.166233][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 473.188398][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 473.197906][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 473.210539][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 473.219529][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 473.232762][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 473.241024][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 473.250552][T24857] [ 473.253183][T24857] Uninit was created at: [ 473.263326][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 473.269546][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 473.274353][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 473.283714][T24857] __alloc_skb+0x2e5/0xaf0 [ 473.293815][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 473.299635][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 473.313454][T24857] tun_get_user+0xe95/0x7470 [ 473.324699][T24857] tun_chr_write_iter+0x34e/0x400 [ 473.330140][T24857] vfs_write+0x1508/0x1710 [ 473.335032][T24857] ksys_write+0x267/0x450 [ 473.344218][T24857] __se_sys_write+0x92/0xb0 [ 473.354723][T24857] __x64_sys_write+0x4a/0x70 [ 473.359970][T24857] do_syscall_64+0xa2/0x120 [ 473.364937][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 473.374471][T24857] ===================================================== [ 473.385636][T24857] ===================================================== [ 473.392857][T24857] BUG: KMSAN: uninit-value in __kmalloc_node_track_caller+0x3f2/0x1530 [ 473.403440][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 473.415411][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 473.429513][T24857] Call Trace: [ 473.433174][T24857] dump_stack+0x1df/0x240 [ 473.438541][T24857] kmsan_report+0xfb/0x1e0 [ 473.449126][T24857] __msan_warning+0x5f/0xa0 [ 473.454488][T24857] __kmalloc_node_track_caller+0x3f2/0x1530 [ 473.462327][T24857] ? vprintk_default+0x86/0xa0 [ 473.467392][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 473.473437][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 473.482158][T24857] ? idle_cpu+0x9a/0x1d0 [ 473.492225][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 473.497764][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 473.507392][T24857] pskb_expand_head+0x210/0x1ad0 [ 473.512366][T24857] ? sysvec_apic_timer_interrupt+0x11d/0x130 [ 473.522680][T24857] __pskb_pull_tail+0x167/0x1e10 [ 473.528100][T24857] llc_rcv+0x102d/0x1290 [ 473.532964][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 473.543888][T24857] netif_receive_skb+0xe88/0xf30 [ 473.554205][T24857] tun_get_user+0x70eb/0x7470 [ 473.559565][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 473.565503][T24857] tun_chr_write_iter+0x34e/0x400 [ 473.574816][T24857] ? tun_chr_read_iter+0x530/0x530 [ 473.584991][T24857] vfs_write+0x1508/0x1710 [ 473.590135][T24857] ksys_write+0x267/0x450 [ 473.594596][T24857] __se_sys_write+0x92/0xb0 [ 473.604484][T24857] __x64_sys_write+0x4a/0x70 [ 473.615101][T24857] do_syscall_64+0xa2/0x120 [ 473.619998][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 473.630294][T24857] RIP: 0033:0x440109 [ 473.634557][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 473.655168][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 473.667426][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 473.678309][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 473.688473][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 473.698646][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 473.709999][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 473.718696][T24857] [ 473.726898][T24857] Uninit was created at: [ 473.731359][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 473.740240][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 473.745615][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 473.752170][T24857] __alloc_skb+0x2e5/0xaf0 [ 473.760323][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 473.771019][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 473.777049][T24857] tun_get_user+0xe95/0x7470 [ 473.788753][T24857] tun_chr_write_iter+0x34e/0x400 [ 473.794548][T24857] vfs_write+0x1508/0x1710 [ 473.799448][T24857] ksys_write+0x267/0x450 [ 473.804257][T24857] __se_sys_write+0x92/0xb0 [ 473.812143][T24857] __x64_sys_write+0x4a/0x70 [ 473.822142][T24857] do_syscall_64+0xa2/0x120 [ 473.832635][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 473.839369][T24857] ===================================================== [ 473.848998][T24857] ===================================================== [ 473.856853][T24857] BUG: KMSAN: uninit-value in kmalloc_large_node+0x231/0x2f0 [ 473.864692][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 473.875728][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 473.886306][T24857] Call Trace: [ 473.890013][T24857] dump_stack+0x1df/0x240 [ 473.894829][T24857] kmsan_report+0xfb/0x1e0 [ 473.899878][T24857] __msan_warning+0x5f/0xa0 [ 473.905043][T24857] ? write_ext_msg+0x8c0/0x8c0 [ 473.910308][T24857] kmalloc_large_node+0x231/0x2f0 [ 473.916576][T24857] ? __msan_warning+0x85/0xa0 [ 473.922717][T24857] __kmalloc_node_track_caller+0x491/0x1530 [ 473.929345][T24857] ? vprintk_default+0x86/0xa0 [ 473.934487][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 473.940730][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 473.946686][T24857] ? idle_cpu+0x9a/0x1d0 [ 473.951207][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 473.956581][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 473.962125][T24857] pskb_expand_head+0x210/0x1ad0 [ 473.968018][T24857] ? sysvec_apic_timer_interrupt+0x11d/0x130 [ 473.974523][T24857] __pskb_pull_tail+0x167/0x1e10 [ 473.980199][T24857] llc_rcv+0x102d/0x1290 [ 473.984703][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 473.990707][T24857] netif_receive_skb+0xe88/0xf30 [ 473.995942][T24857] tun_get_user+0x70eb/0x7470 [ 474.001102][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 474.006918][T24857] tun_chr_write_iter+0x34e/0x400 [ 474.012660][T24857] ? tun_chr_read_iter+0x530/0x530 [ 474.018165][T24857] vfs_write+0x1508/0x1710 [ 474.023090][T24857] ksys_write+0x267/0x450 [ 474.028528][T24857] __se_sys_write+0x92/0xb0 [ 474.033611][T24857] __x64_sys_write+0x4a/0x70 [ 474.038904][T24857] do_syscall_64+0xa2/0x120 [ 474.043754][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 474.049998][T24857] RIP: 0033:0x440109 [ 474.054348][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 474.076760][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 474.085471][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 474.094394][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 474.103006][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 474.112136][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 474.120989][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 474.129992][T24857] [ 474.132502][T24857] Uninit was created at: [ 474.137689][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 474.143688][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 474.148455][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 474.155199][T24857] __alloc_skb+0x2e5/0xaf0 [ 474.160990][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 474.167061][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 474.172615][T24857] tun_get_user+0xe95/0x7470 [ 474.177386][T24857] tun_chr_write_iter+0x34e/0x400 [ 474.183118][T24857] vfs_write+0x1508/0x1710 [ 474.187940][T24857] ksys_write+0x267/0x450 [ 474.193174][T24857] __se_sys_write+0x92/0xb0 [ 474.199189][T24857] __x64_sys_write+0x4a/0x70 [ 474.204410][T24857] do_syscall_64+0xa2/0x120 [ 474.210039][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 474.216609][T24857] ===================================================== [ 474.224517][T24857] ===================================================== [ 474.231802][T24857] BUG: KMSAN: uninit-value in __kmalloc_node_track_caller+0x1407/0x1530 [ 474.240508][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 474.257162][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 474.267687][T24857] Call Trace: [ 474.275132][T24857] dump_stack+0x1df/0x240 [ 474.283272][T24857] kmsan_report+0xfb/0x1e0 [ 474.292344][T24857] __msan_warning+0x5f/0xa0 [ 474.301005][T24857] __kmalloc_node_track_caller+0x1407/0x1530 [ 474.310496][T24857] ? vprintk_default+0x86/0xa0 [ 474.318494][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 474.327832][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 474.335935][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 474.344470][T24857] ? __pskb_pull_tail+0x167/0x1e10 [ 474.352725][T24857] pskb_expand_head+0x210/0x1ad0 [ 474.361764][T24857] ? sysvec_apic_timer_interrupt+0x11d/0x130 [ 474.370247][T24857] __pskb_pull_tail+0x167/0x1e10 [ 474.379534][T24857] llc_rcv+0x102d/0x1290 [ 474.387590][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 474.397082][T24857] netif_receive_skb+0xe88/0xf30 [ 474.405097][T24857] tun_get_user+0x70eb/0x7470 [ 474.414167][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 474.422242][T24857] tun_chr_write_iter+0x34e/0x400 [ 474.431389][T24857] ? tun_chr_read_iter+0x530/0x530 [ 474.439366][T24857] vfs_write+0x1508/0x1710 [ 474.448729][T24857] ksys_write+0x267/0x450 [ 474.456649][T24857] __se_sys_write+0x92/0xb0 [ 474.465818][T24857] __x64_sys_write+0x4a/0x70 [ 474.473724][T24857] do_syscall_64+0xa2/0x120 [ 474.482665][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 474.490845][T24857] RIP: 0033:0x440109 [ 474.499224][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 474.524962][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 474.534830][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 474.543524][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 474.552622][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 474.561153][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 474.570899][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 474.579863][T24857] [ 474.588422][T24857] Uninit was created at: [ 474.596229][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 474.605553][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 474.613500][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 474.622530][T24857] __alloc_skb+0x2e5/0xaf0 [ 474.630673][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 474.637058][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 474.643002][T24857] tun_get_user+0xe95/0x7470 [ 474.648249][T24857] tun_chr_write_iter+0x34e/0x400 [ 474.653638][T24857] vfs_write+0x1508/0x1710 [ 474.658259][T24857] ksys_write+0x267/0x450 [ 474.662944][T24857] __se_sys_write+0x92/0xb0 [ 474.667757][T24857] __x64_sys_write+0x4a/0x70 [ 474.672534][T24857] do_syscall_64+0xa2/0x120 [ 474.677725][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 474.684353][T24857] ===================================================== [ 474.693349][T24857] ===================================================== [ 474.701425][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x124/0xdf0 [ 474.714333][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 474.725698][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 474.738894][T24857] Call Trace: [ 474.748677][T24857] dump_stack+0x1df/0x240 [ 474.753300][T24857] kmsan_report+0xfb/0x1e0 [ 474.757965][T24857] __msan_warning+0x5f/0xa0 [ 474.767794][T24857] skb_copy_bits+0x124/0xdf0 [ 474.777676][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 474.783019][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 474.788222][T24857] llc_rcv+0x102d/0x1290 [ 474.796560][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 474.802447][T24857] netif_receive_skb+0xe88/0xf30 [ 474.807947][T24857] tun_get_user+0x70eb/0x7470 [ 474.813106][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 474.820545][T24857] tun_chr_write_iter+0x34e/0x400 [ 474.825958][T24857] ? tun_chr_read_iter+0x530/0x530 [ 474.831445][T24857] vfs_write+0x1508/0x1710 [ 474.839866][T24857] ksys_write+0x267/0x450 [ 474.844428][T24857] __se_sys_write+0x92/0xb0 [ 474.849088][T24857] __x64_sys_write+0x4a/0x70 [ 474.853977][T24857] do_syscall_64+0xa2/0x120 [ 474.862056][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 474.872002][T24857] RIP: 0033:0x440109 [ 474.876193][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 474.902025][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 474.910998][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 474.919688][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 474.928348][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 474.938049][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 474.946321][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 474.959499][T24857] [ 474.961928][T24857] Uninit was created at: [ 474.969630][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 474.976265][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 474.981580][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 474.987881][T24857] __alloc_skb+0x2e5/0xaf0 [ 474.993055][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 474.998297][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 475.004902][T24857] tun_get_user+0xe95/0x7470 [ 475.009889][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.015512][T24857] vfs_write+0x1508/0x1710 [ 475.020806][T24857] ksys_write+0x267/0x450 [ 475.025309][T24857] __se_sys_write+0x92/0xb0 [ 475.030454][T24857] __x64_sys_write+0x4a/0x70 [ 475.035501][T24857] do_syscall_64+0xa2/0x120 [ 475.040194][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 475.047347][T24857] ===================================================== [ 475.056837][T24857] ===================================================== [ 475.069934][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 475.083435][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 475.095636][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 475.107620][T24857] Call Trace: [ 475.115025][T24857] dump_stack+0x1df/0x240 [ 475.124882][T24857] kmsan_report+0xfb/0x1e0 [ 475.129539][T24857] __msan_warning+0x5f/0xa0 [ 475.134903][T24857] skb_copy_bits+0x703/0xdf0 [ 475.143890][T24857] ? kmsan_get_metadata+0x11d/0x180 [ 475.150171][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 475.156258][T24857] llc_rcv+0x102d/0x1290 [ 475.164517][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 475.175728][T24857] netif_receive_skb+0xe88/0xf30 [ 475.186155][T24857] tun_get_user+0x70eb/0x7470 [ 475.191218][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 475.196816][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.202138][T24857] ? tun_chr_read_iter+0x530/0x530 [ 475.208202][T24857] vfs_write+0x1508/0x1710 [ 475.213542][T24857] ksys_write+0x267/0x450 [ 475.218397][T24857] __se_sys_write+0x92/0xb0 [ 475.223285][T24857] __x64_sys_write+0x4a/0x70 [ 475.228711][T24857] do_syscall_64+0xa2/0x120 [ 475.234038][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 475.240461][T24857] RIP: 0033:0x440109 [ 475.244784][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 475.266106][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 475.276227][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 475.285626][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 475.294146][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 475.304066][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 475.312895][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 475.322242][T24857] [ 475.325349][T24857] Uninit was created at: [ 475.329923][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 475.336192][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 475.341404][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 475.347723][T24857] __alloc_skb+0x2e5/0xaf0 [ 475.352482][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 475.358424][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 475.363933][T24857] tun_get_user+0xe95/0x7470 [ 475.368872][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.374384][T24857] vfs_write+0x1508/0x1710 [ 475.379552][T24857] ksys_write+0x267/0x450 [ 475.384245][T24857] __se_sys_write+0x92/0xb0 [ 475.389289][T24857] __x64_sys_write+0x4a/0x70 [ 475.394788][T24857] do_syscall_64+0xa2/0x120 [ 475.399904][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 475.406750][T24857] ===================================================== [ 475.416453][T24857] ===================================================== [ 475.429349][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x74d/0xdf0 [ 475.437157][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 475.448804][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 475.465316][T24857] Call Trace: [ 475.473124][T24857] dump_stack+0x1df/0x240 [ 475.482164][T24857] kmsan_report+0xfb/0x1e0 [ 475.490078][T24857] __msan_warning+0x5f/0xa0 [ 475.498713][T24857] skb_copy_bits+0x74d/0xdf0 [ 475.503604][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 475.513572][T24857] llc_rcv+0x102d/0x1290 [ 475.518033][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 475.524365][T24857] netif_receive_skb+0xe88/0xf30 [ 475.535999][T24857] tun_get_user+0x70eb/0x7470 [ 475.540847][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 475.549190][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.557756][T24857] ? tun_chr_read_iter+0x530/0x530 [ 475.565943][T24857] vfs_write+0x1508/0x1710 [ 475.574319][T24857] ksys_write+0x267/0x450 [ 475.582198][T24857] __se_sys_write+0x92/0xb0 [ 475.591297][T24857] __x64_sys_write+0x4a/0x70 [ 475.599141][T24857] do_syscall_64+0xa2/0x120 [ 475.608291][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 475.616556][T24857] RIP: 0033:0x440109 [ 475.624788][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 475.650737][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 475.660521][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 475.669535][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 475.679343][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 475.687910][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 475.698793][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 475.708948][T24857] [ 475.717492][T24857] Uninit was created at: [ 475.725625][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 475.735009][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 475.742933][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 475.752193][T24857] __alloc_skb+0x2e5/0xaf0 [ 475.760114][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 475.768759][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 475.776901][T24857] tun_get_user+0xe95/0x7470 [ 475.785430][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.793578][T24857] vfs_write+0x1508/0x1710 [ 475.802830][T24857] ksys_write+0x267/0x450 [ 475.810754][T24857] __se_sys_write+0x92/0xb0 [ 475.819464][T24857] __x64_sys_write+0x4a/0x70 [ 475.827649][T24857] do_syscall_64+0xa2/0x120 [ 475.837019][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 475.845692][T24857] ===================================================== [ 475.855802][T24857] ===================================================== [ 475.863332][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x8fa/0xdf0 [ 475.872859][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 475.890698][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 475.901281][T24857] Call Trace: [ 475.904846][T24857] dump_stack+0x1df/0x240 [ 475.909542][T24857] kmsan_report+0xfb/0x1e0 [ 475.914175][T24857] __msan_warning+0x5f/0xa0 [ 475.919055][T24857] skb_copy_bits+0x8fa/0xdf0 [ 475.923862][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 475.931668][T24857] llc_rcv+0x102d/0x1290 [ 475.936574][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 475.943231][T24857] netif_receive_skb+0xe88/0xf30 [ 475.951134][T24857] tun_get_user+0x70eb/0x7470 [ 475.962351][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 475.967872][T24857] tun_chr_write_iter+0x34e/0x400 [ 475.979302][T24857] ? tun_chr_read_iter+0x530/0x530 [ 475.984910][T24857] vfs_write+0x1508/0x1710 [ 475.992709][T24857] ksys_write+0x267/0x450 [ 475.997680][T24857] __se_sys_write+0x92/0xb0 [ 476.002623][T24857] __x64_sys_write+0x4a/0x70 [ 476.011300][T24857] do_syscall_64+0xa2/0x120 [ 476.016290][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.024825][T24857] RIP: 0033:0x440109 [ 476.029206][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 476.050007][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 476.062642][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 476.071809][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 476.080951][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 476.089404][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 476.098203][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 476.107819][T24857] [ 476.110389][T24857] Uninit was created at: [ 476.115108][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 476.121333][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 476.126835][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 476.135884][T24857] __alloc_skb+0x2e5/0xaf0 [ 476.140866][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 476.146765][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 476.152744][T24857] tun_get_user+0xe95/0x7470 [ 476.157823][T24857] tun_chr_write_iter+0x34e/0x400 [ 476.163434][T24857] vfs_write+0x1508/0x1710 [ 476.168330][T24857] ksys_write+0x267/0x450 [ 476.174120][T24857] __se_sys_write+0x92/0xb0 [ 476.183807][T24857] __x64_sys_write+0x4a/0x70 [ 476.189221][T24857] do_syscall_64+0xa2/0x120 [ 476.194288][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.200904][T24857] ===================================================== [ 476.209326][T24857] ===================================================== [ 476.216913][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 476.226532][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 476.238278][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 476.249671][T24857] Call Trace: [ 476.253422][T24857] dump_stack+0x1df/0x240 [ 476.264391][T24857] kmsan_report+0xfb/0x1e0 [ 476.269860][T24857] __msan_warning+0x5f/0xa0 [ 476.274871][T24857] skb_copy_bits+0x703/0xdf0 [ 476.280111][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 476.285977][T24857] llc_rcv+0x102d/0x1290 [ 476.296150][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 476.304269][T24857] netif_receive_skb+0xe88/0xf30 [ 476.310265][T24857] tun_get_user+0x70eb/0x7470 [ 476.316097][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 476.321980][T24857] tun_chr_write_iter+0x34e/0x400 [ 476.330269][T24857] ? tun_chr_read_iter+0x530/0x530 [ 476.336974][T24857] vfs_write+0x1508/0x1710 [ 476.343077][T24857] ksys_write+0x267/0x450 [ 476.348150][T24857] __se_sys_write+0x92/0xb0 [ 476.353258][T24857] __x64_sys_write+0x4a/0x70 [ 476.358355][T24857] do_syscall_64+0xa2/0x120 [ 476.369526][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.376733][T24857] RIP: 0033:0x440109 [ 476.381887][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 476.404016][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 476.413335][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 476.422739][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 476.432883][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 476.448474][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 476.457512][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 476.466637][T24857] [ 476.469519][T24857] Uninit was created at: [ 476.474332][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 476.481551][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 476.487145][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 476.493979][T24857] __alloc_skb+0x2e5/0xaf0 [ 476.498887][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 476.506957][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 476.513523][T24857] tun_get_user+0xe95/0x7470 [ 476.519146][T24857] tun_chr_write_iter+0x34e/0x400 [ 476.524662][T24857] vfs_write+0x1508/0x1710 [ 476.531022][T24857] ksys_write+0x267/0x450 [ 476.535628][T24857] __se_sys_write+0x92/0xb0 [ 476.541026][T24857] __x64_sys_write+0x4a/0x70 [ 476.545995][T24857] do_syscall_64+0xa2/0x120 [ 476.551751][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.558931][T24857] ===================================================== [ 476.567520][T24857] ===================================================== [ 476.574822][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x730/0xdf0 [ 476.582944][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 476.597900][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 476.609736][T24857] Call Trace: [ 476.618386][T24857] dump_stack+0x1df/0x240 [ 476.626264][T24857] kmsan_report+0xfb/0x1e0 [ 476.631083][T24857] __msan_warning+0x5f/0xa0 [ 476.639957][T24857] skb_copy_bits+0x730/0xdf0 [ 476.644828][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 476.650299][T24857] llc_rcv+0x102d/0x1290 [ 476.655231][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 476.661642][T24857] netif_receive_skb+0xe88/0xf30 [ 476.672379][T24857] tun_get_user+0x70eb/0x7470 [ 476.677705][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 476.683919][T24857] tun_chr_write_iter+0x34e/0x400 [ 476.689646][T24857] ? tun_chr_read_iter+0x530/0x530 [ 476.701264][T24857] vfs_write+0x1508/0x1710 [ 476.706115][T24857] ksys_write+0x267/0x450 [ 476.711014][T24857] __se_sys_write+0x92/0xb0 [ 476.716854][T24857] __x64_sys_write+0x4a/0x70 [ 476.722454][T24857] do_syscall_64+0xa2/0x120 [ 476.727232][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.736314][T24857] RIP: 0033:0x440109 [ 476.741682][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 476.763948][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 476.778849][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 476.787436][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 476.796851][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 476.806376][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 476.815751][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 476.824750][T24857] [ 476.827078][T24857] Uninit was created at: [ 476.831732][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 476.837941][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 476.843153][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 476.850112][T24857] __alloc_skb+0x2e5/0xaf0 [ 476.854952][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 476.860986][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 476.866740][T24857] tun_get_user+0xe95/0x7470 [ 476.872389][T24857] tun_chr_write_iter+0x34e/0x400 [ 476.877955][T24857] vfs_write+0x1508/0x1710 [ 476.882544][T24857] ksys_write+0x267/0x450 [ 476.887256][T24857] __se_sys_write+0x92/0xb0 [ 476.892427][T24857] __x64_sys_write+0x4a/0x70 [ 476.897822][T24857] do_syscall_64+0xa2/0x120 [ 476.903130][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 476.909647][T24857] ===================================================== [ 476.916848][T24857] ===================================================== [ 476.929233][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x74d/0xdf0 [ 476.936675][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 476.947650][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 476.959358][T24857] Call Trace: [ 476.966754][T24857] dump_stack+0x1df/0x240 [ 476.971139][T24857] kmsan_report+0xfb/0x1e0 [ 476.975976][T24857] __msan_warning+0x5f/0xa0 [ 476.980751][T24857] skb_copy_bits+0x74d/0xdf0 [ 476.989140][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 476.997668][T24857] llc_rcv+0x102d/0x1290 [ 477.008387][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 477.014701][T24857] netif_receive_skb+0xe88/0xf30 [ 477.019975][T24857] tun_get_user+0x70eb/0x7470 [ 477.027998][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 477.039033][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.044524][T24857] ? tun_chr_read_iter+0x530/0x530 [ 477.050310][T24857] vfs_write+0x1508/0x1710 [ 477.058069][T24857] ksys_write+0x267/0x450 [ 477.068790][T24857] __se_sys_write+0x92/0xb0 [ 477.073465][T24857] __x64_sys_write+0x4a/0x70 [ 477.078263][T24857] do_syscall_64+0xa2/0x120 [ 477.086424][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 477.098879][T24857] RIP: 0033:0x440109 [ 477.103022][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 477.129515][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 477.138521][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 477.147915][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 477.161045][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 477.170439][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 477.179150][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 477.187504][T24857] [ 477.189963][T24857] Uninit was created at: [ 477.195000][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 477.201441][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 477.206308][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 477.212940][T24857] __alloc_skb+0x2e5/0xaf0 [ 477.217832][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 477.223598][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 477.229695][T24857] tun_get_user+0xe95/0x7470 [ 477.235041][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.240682][T24857] vfs_write+0x1508/0x1710 [ 477.245531][T24857] ksys_write+0x267/0x450 [ 477.250225][T24857] __se_sys_write+0x92/0xb0 [ 477.255161][T24857] __x64_sys_write+0x4a/0x70 [ 477.260307][T24857] do_syscall_64+0xa2/0x120 [ 477.266621][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 477.273204][T24857] ===================================================== [ 477.281149][T24857] ===================================================== [ 477.288893][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x8fa/0xdf0 [ 477.297677][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 477.311695][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 477.322570][T24857] Call Trace: [ 477.330827][T24857] dump_stack+0x1df/0x240 [ 477.335743][T24857] kmsan_report+0xfb/0x1e0 [ 477.340549][T24857] __msan_warning+0x5f/0xa0 [ 477.349366][T24857] skb_copy_bits+0x8fa/0xdf0 [ 477.360672][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 477.366321][T24857] llc_rcv+0x102d/0x1290 [ 477.370711][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 477.379538][T24857] netif_receive_skb+0xe88/0xf30 [ 477.388926][T24857] tun_get_user+0x70eb/0x7470 [ 477.393904][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 477.399688][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.407483][T24857] ? tun_chr_read_iter+0x530/0x530 [ 477.417805][T24857] vfs_write+0x1508/0x1710 [ 477.422808][T24857] ksys_write+0x267/0x450 [ 477.427483][T24857] __se_sys_write+0x92/0xb0 [ 477.436173][T24857] __x64_sys_write+0x4a/0x70 [ 477.446445][T24857] do_syscall_64+0xa2/0x120 [ 477.452758][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 477.467546][T24857] RIP: 0033:0x440109 [ 477.471818][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 477.496375][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 477.510961][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 477.521496][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 477.529761][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 477.540263][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 477.555146][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 477.563528][T24857] [ 477.565880][T24857] Uninit was created at: [ 477.570742][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 477.577132][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 477.586819][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 477.593123][T24857] __alloc_skb+0x2e5/0xaf0 [ 477.597666][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 477.603167][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 477.613445][T24857] tun_get_user+0xe95/0x7470 [ 477.618286][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.623952][T24857] vfs_write+0x1508/0x1710 [ 477.631988][T24857] ksys_write+0x267/0x450 [ 477.641225][T24857] __se_sys_write+0x92/0xb0 [ 477.645863][T24857] __x64_sys_write+0x4a/0x70 [ 477.650746][T24857] do_syscall_64+0xa2/0x120 [ 477.659467][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 477.668955][T24857] ===================================================== [ 477.676857][T24857] ===================================================== [ 477.684337][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 477.697611][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 477.708511][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 477.719767][T24857] Call Trace: [ 477.723187][T24857] dump_stack+0x1df/0x240 [ 477.728080][T24857] kmsan_report+0xfb/0x1e0 [ 477.733001][T24857] __msan_warning+0x5f/0xa0 [ 477.737716][T24857] skb_copy_bits+0x703/0xdf0 [ 477.742916][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 477.753748][T24857] llc_rcv+0x102d/0x1290 [ 477.758468][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 477.764314][T24857] netif_receive_skb+0xe88/0xf30 [ 477.769479][T24857] tun_get_user+0x70eb/0x7470 [ 477.774495][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 477.779819][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.785319][T24857] ? tun_chr_read_iter+0x530/0x530 [ 477.793465][T24857] vfs_write+0x1508/0x1710 [ 477.798214][T24857] ksys_write+0x267/0x450 [ 477.802682][T24857] __se_sys_write+0x92/0xb0 [ 477.807862][T24857] __x64_sys_write+0x4a/0x70 [ 477.812934][T24857] do_syscall_64+0xa2/0x120 [ 477.823147][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 477.829716][T24857] RIP: 0033:0x440109 [ 477.833921][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 477.856259][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 477.867728][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 477.876462][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 477.889582][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 477.898365][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 477.907213][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 477.920199][T24857] [ 477.922946][T24857] Uninit was created at: [ 477.927486][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 477.933498][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 477.938921][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 477.950695][T24857] __alloc_skb+0x2e5/0xaf0 [ 477.955327][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 477.960969][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 477.966732][T24857] tun_get_user+0xe95/0x7470 [ 477.971631][T24857] tun_chr_write_iter+0x34e/0x400 [ 477.983352][T24857] vfs_write+0x1508/0x1710 [ 477.988629][T24857] ksys_write+0x267/0x450 [ 477.993639][T24857] __se_sys_write+0x92/0xb0 [ 477.998385][T24857] __x64_sys_write+0x4a/0x70 [ 478.003812][T24857] do_syscall_64+0xa2/0x120 [ 478.013838][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.020679][T24857] ===================================================== [ 478.028236][T24857] ===================================================== [ 478.035673][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x730/0xdf0 [ 478.042913][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 478.054320][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 478.066974][T24857] Call Trace: [ 478.070621][T24857] dump_stack+0x1df/0x240 [ 478.075408][T24857] kmsan_report+0xfb/0x1e0 [ 478.081152][T24857] __msan_warning+0x5f/0xa0 [ 478.088590][T24857] skb_copy_bits+0x730/0xdf0 [ 478.099082][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 478.104523][T24857] llc_rcv+0x102d/0x1290 [ 478.109078][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 478.115537][T24857] netif_receive_skb+0xe88/0xf30 [ 478.125718][T24857] tun_get_user+0x70eb/0x7470 [ 478.131248][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 478.136698][T24857] tun_chr_write_iter+0x34e/0x400 [ 478.141901][T24857] ? tun_chr_read_iter+0x530/0x530 [ 478.154214][T24857] vfs_write+0x1508/0x1710 [ 478.159329][T24857] ksys_write+0x267/0x450 [ 478.164229][T24857] __se_sys_write+0x92/0xb0 [ 478.169142][T24857] __x64_sys_write+0x4a/0x70 [ 478.174118][T24857] do_syscall_64+0xa2/0x120 [ 478.182096][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.188990][T24857] RIP: 0033:0x440109 [ 478.193305][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 478.215243][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 478.224125][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 478.232793][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 478.243794][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 478.252330][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 478.261724][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 478.273131][T24857] [ 478.275755][T24857] Uninit was created at: [ 478.280315][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 478.286240][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 478.291034][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 478.300439][T24857] __alloc_skb+0x2e5/0xaf0 [ 478.305847][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 478.311638][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 478.317806][T24857] tun_get_user+0xe95/0x7470 [ 478.323387][T24857] tun_chr_write_iter+0x34e/0x400 [ 478.329968][T24857] vfs_write+0x1508/0x1710 [ 478.335124][T24857] ksys_write+0x267/0x450 [ 478.339665][T24857] __se_sys_write+0x92/0xb0 [ 478.350007][T24857] __x64_sys_write+0x4a/0x70 [ 478.354845][T24857] do_syscall_64+0xa2/0x120 [ 478.359824][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.366364][T24857] ===================================================== [ 478.374793][T24857] ===================================================== [ 478.386913][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x74d/0xdf0 [ 478.394356][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 478.405879][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 478.419378][T24857] Call Trace: [ 478.424064][T24857] dump_stack+0x1df/0x240 [ 478.428547][T24857] kmsan_report+0xfb/0x1e0 [ 478.434136][T24857] __msan_warning+0x5f/0xa0 [ 478.439809][T24857] skb_copy_bits+0x74d/0xdf0 [ 478.449654][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 478.455355][T24857] llc_rcv+0x102d/0x1290 [ 478.460433][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 478.466291][T24857] netif_receive_skb+0xe88/0xf30 [ 478.471658][T24857] tun_get_user+0x70eb/0x7470 [ 478.481548][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 478.487012][T24857] tun_chr_write_iter+0x34e/0x400 [ 478.492254][T24857] ? tun_chr_read_iter+0x530/0x530 [ 478.497872][T24857] vfs_write+0x1508/0x1710 [ 478.502599][T24857] ksys_write+0x267/0x450 [ 478.511615][T24857] __se_sys_write+0x92/0xb0 [ 478.516985][T24857] __x64_sys_write+0x4a/0x70 [ 478.522159][T24857] do_syscall_64+0xa2/0x120 [ 478.527703][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.537987][T24857] RIP: 0033:0x440109 [ 478.542109][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 478.568401][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 478.577587][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 478.586727][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 478.597011][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 478.606130][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 478.615275][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 478.628050][T24857] [ 478.630675][T24857] Uninit was created at: [ 478.635499][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 478.641954][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 478.646954][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 478.657501][T24857] __alloc_skb+0x2e5/0xaf0 [ 478.662233][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 478.667691][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 478.673713][T24857] tun_get_user+0xe95/0x7470 [ 478.678690][T24857] tun_chr_write_iter+0x34e/0x400 [ 478.687884][T24857] vfs_write+0x1508/0x1710 [ 478.692717][T24857] ksys_write+0x267/0x450 [ 478.697703][T24857] __se_sys_write+0x92/0xb0 [ 478.702694][T24857] __x64_sys_write+0x4a/0x70 [ 478.708216][T24857] do_syscall_64+0xa2/0x120 [ 478.716332][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.722812][T24857] ===================================================== [ 478.730665][T24857] ===================================================== [ 478.738353][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x8fa/0xdf0 [ 478.746380][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 478.759205][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 478.769671][T24857] Call Trace: [ 478.773278][T24857] dump_stack+0x1df/0x240 [ 478.777824][T24857] kmsan_report+0xfb/0x1e0 [ 478.789021][T24857] __msan_warning+0x5f/0xa0 [ 478.794399][T24857] skb_copy_bits+0x8fa/0xdf0 [ 478.799053][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 478.804324][T24857] llc_rcv+0x102d/0x1290 [ 478.809053][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 478.818731][T24857] netif_receive_skb+0xe88/0xf30 [ 478.824175][T24857] tun_get_user+0x70eb/0x7470 [ 478.829876][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 478.835581][T24857] tun_chr_write_iter+0x34e/0x400 [ 478.841354][T24857] ? tun_chr_read_iter+0x530/0x530 [ 478.853230][T24857] vfs_write+0x1508/0x1710 [ 478.858230][T24857] ksys_write+0x267/0x450 [ 478.863660][T24857] __se_sys_write+0x92/0xb0 [ 478.871755][T24857] __x64_sys_write+0x4a/0x70 [ 478.877081][T24857] do_syscall_64+0xa2/0x120 [ 478.882337][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 478.888890][T24857] RIP: 0033:0x440109 [ 478.893274][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 478.915275][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 478.924352][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 478.934472][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 478.942782][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 478.951769][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 478.964206][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 478.973493][T24857] [ 478.975853][T24857] Uninit was created at: [ 478.980464][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 478.987130][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 478.996553][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 479.003375][T24857] __alloc_skb+0x2e5/0xaf0 [ 479.008098][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 479.013683][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 479.019114][T24857] tun_get_user+0xe95/0x7470 [ 479.027776][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.033612][T24857] vfs_write+0x1508/0x1710 [ 479.038272][T24857] ksys_write+0x267/0x450 [ 479.043539][T24857] __se_sys_write+0x92/0xb0 [ 479.048710][T24857] __x64_sys_write+0x4a/0x70 [ 479.058318][T24857] do_syscall_64+0xa2/0x120 [ 479.063003][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.069354][T24857] ===================================================== [ 479.076733][T24857] ===================================================== [ 479.083875][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 479.097097][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 479.108813][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 479.126122][T24857] Call Trace: [ 479.130320][T24857] dump_stack+0x1df/0x240 [ 479.134866][T24857] kmsan_report+0xfb/0x1e0 [ 479.140115][T24857] __msan_warning+0x5f/0xa0 [ 479.146686][T24857] skb_copy_bits+0x703/0xdf0 [ 479.157642][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 479.163452][T24857] llc_rcv+0x102d/0x1290 [ 479.168362][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 479.174488][T24857] netif_receive_skb+0xe88/0xf30 [ 479.179812][T24857] tun_get_user+0x70eb/0x7470 [ 479.187509][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 479.193740][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.199763][T24857] ? tun_chr_read_iter+0x530/0x530 [ 479.205267][T24857] vfs_write+0x1508/0x1710 [ 479.216362][T24857] ksys_write+0x267/0x450 [ 479.220770][T24857] __se_sys_write+0x92/0xb0 [ 479.225667][T24857] __x64_sys_write+0x4a/0x70 [ 479.230463][T24857] do_syscall_64+0xa2/0x120 [ 479.235600][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.245496][T24857] RIP: 0033:0x440109 [ 479.250012][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 479.273611][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 479.282927][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 479.292337][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 479.304480][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 479.313280][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 479.322137][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 479.336146][T24857] [ 479.338583][T24857] Uninit was created at: [ 479.343884][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 479.350959][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 479.357312][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 479.365494][T24857] __alloc_skb+0x2e5/0xaf0 [ 479.371403][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 479.381621][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 479.390548][T24857] tun_get_user+0xe95/0x7470 [ 479.401045][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.406928][T24857] vfs_write+0x1508/0x1710 [ 479.411643][T24857] ksys_write+0x267/0x450 [ 479.416731][T24857] __se_sys_write+0x92/0xb0 [ 479.421537][T24857] __x64_sys_write+0x4a/0x70 [ 479.431230][T24857] do_syscall_64+0xa2/0x120 [ 479.436556][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.443944][T24857] ===================================================== [ 479.451660][T24857] ===================================================== [ 479.458866][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x730/0xdf0 [ 479.471920][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 479.484551][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 479.496210][T24857] Call Trace: [ 479.506576][T24857] dump_stack+0x1df/0x240 [ 479.511487][T24857] kmsan_report+0xfb/0x1e0 [ 479.516290][T24857] __msan_warning+0x5f/0xa0 [ 479.521136][T24857] skb_copy_bits+0x730/0xdf0 [ 479.526953][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 479.539044][T24857] llc_rcv+0x102d/0x1290 [ 479.544019][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 479.549867][T24857] netif_receive_skb+0xe88/0xf30 [ 479.561037][T24857] tun_get_user+0x70eb/0x7470 [ 479.566297][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 479.572799][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.578420][T24857] ? tun_chr_read_iter+0x530/0x530 [ 479.588247][T24857] vfs_write+0x1508/0x1710 [ 479.593655][T24857] ksys_write+0x267/0x450 [ 479.601848][T24857] __se_sys_write+0x92/0xb0 [ 479.607553][T24857] __x64_sys_write+0x4a/0x70 [ 479.617931][T24857] do_syscall_64+0xa2/0x120 [ 479.622765][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.629685][T24857] RIP: 0033:0x440109 [ 479.633785][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 479.655150][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 479.664145][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 479.676149][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 479.684839][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 479.693560][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 479.705233][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 479.714193][T24857] [ 479.716539][T24857] Uninit was created at: [ 479.721898][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 479.727885][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 479.736732][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 479.743948][T24857] __alloc_skb+0x2e5/0xaf0 [ 479.748648][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 479.754227][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 479.764033][T24857] tun_get_user+0xe95/0x7470 [ 479.769248][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.774587][T24857] vfs_write+0x1508/0x1710 [ 479.779247][T24857] ksys_write+0x267/0x450 [ 479.783780][T24857] __se_sys_write+0x92/0xb0 [ 479.791009][T24857] __x64_sys_write+0x4a/0x70 [ 479.795991][T24857] do_syscall_64+0xa2/0x120 [ 479.801064][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.807663][T24857] ===================================================== [ 479.819796][T24857] ===================================================== [ 479.826846][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x74d/0xdf0 [ 479.834081][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 479.844979][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 479.856096][T24857] Call Trace: [ 479.859455][T24857] dump_stack+0x1df/0x240 [ 479.864255][T24857] kmsan_report+0xfb/0x1e0 [ 479.869145][T24857] __msan_warning+0x5f/0xa0 [ 479.874471][T24857] skb_copy_bits+0x74d/0xdf0 [ 479.879638][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 479.890106][T24857] llc_rcv+0x102d/0x1290 [ 479.894773][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 479.900452][T24857] netif_receive_skb+0xe88/0xf30 [ 479.906077][T24857] tun_get_user+0x70eb/0x7470 [ 479.911106][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 479.918858][T24857] tun_chr_write_iter+0x34e/0x400 [ 479.924152][T24857] ? tun_chr_read_iter+0x530/0x530 [ 479.929407][T24857] vfs_write+0x1508/0x1710 [ 479.934325][T24857] ksys_write+0x267/0x450 [ 479.939670][T24857] __se_sys_write+0x92/0xb0 [ 479.949019][T24857] __x64_sys_write+0x4a/0x70 [ 479.953929][T24857] do_syscall_64+0xa2/0x120 [ 479.958737][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 479.965390][T24857] RIP: 0033:0x440109 [ 479.969406][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 479.991368][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.000444][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 480.010448][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 480.019091][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 480.028235][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 480.036573][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 480.044838][T24857] [ 480.047276][T24857] Uninit was created at: [ 480.051706][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 480.058001][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 480.066306][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 480.072609][T24857] __alloc_skb+0x2e5/0xaf0 [ 480.077586][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 480.083233][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 480.093451][T24857] tun_get_user+0xe95/0x7470 [ 480.098457][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.104059][T24857] vfs_write+0x1508/0x1710 [ 480.108764][T24857] ksys_write+0x267/0x450 [ 480.119929][T24857] __se_sys_write+0x92/0xb0 [ 480.125109][T24857] __x64_sys_write+0x4a/0x70 [ 480.130258][T24857] do_syscall_64+0xa2/0x120 [ 480.135110][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.144924][T24857] ===================================================== [ 480.152705][T24857] ===================================================== [ 480.160992][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x8fa/0xdf0 [ 480.169227][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 480.180641][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 480.191692][T24857] Call Trace: [ 480.195358][T24857] dump_stack+0x1df/0x240 [ 480.200365][T24857] kmsan_report+0xfb/0x1e0 [ 480.205426][T24857] __msan_warning+0x5f/0xa0 [ 480.210410][T24857] skb_copy_bits+0x8fa/0xdf0 [ 480.215862][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 480.221357][T24857] llc_rcv+0x102d/0x1290 [ 480.225819][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 480.231702][T24857] netif_receive_skb+0xe88/0xf30 [ 480.237124][T24857] tun_get_user+0x70eb/0x7470 [ 480.244546][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 480.250241][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.256447][T24857] ? tun_chr_read_iter+0x530/0x530 [ 480.262227][T24857] vfs_write+0x1508/0x1710 [ 480.267058][T24857] ksys_write+0x267/0x450 [ 480.272313][T24857] __se_sys_write+0x92/0xb0 [ 480.277864][T24857] __x64_sys_write+0x4a/0x70 [ 480.283375][T24857] do_syscall_64+0xa2/0x120 [ 480.291146][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.297951][T24857] RIP: 0033:0x440109 [ 480.303960][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 480.330121][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.339154][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 480.347905][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 480.356262][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 480.366621][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 480.376213][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 480.385331][T24857] [ 480.387958][T24857] Uninit was created at: [ 480.392947][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 480.398798][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 480.403857][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 480.410771][T24857] __alloc_skb+0x2e5/0xaf0 [ 480.419455][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 480.425327][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 480.430957][T24857] tun_get_user+0xe95/0x7470 [ 480.435943][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.441837][T24857] vfs_write+0x1508/0x1710 [ 480.446656][T24857] ksys_write+0x267/0x450 [ 480.451202][T24857] __se_sys_write+0x92/0xb0 [ 480.456105][T24857] __x64_sys_write+0x4a/0x70 [ 480.465753][T24857] do_syscall_64+0xa2/0x120 [ 480.470786][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.478072][T24857] ===================================================== [ 480.486092][T24857] ===================================================== [ 480.493894][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 480.502629][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 480.514442][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 480.525840][T24857] Call Trace: [ 480.529326][T24857] dump_stack+0x1df/0x240 [ 480.534344][T24857] kmsan_report+0xfb/0x1e0 [ 480.539905][T24857] __msan_warning+0x5f/0xa0 [ 480.545227][T24857] skb_copy_bits+0x703/0xdf0 [ 480.550126][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 480.556382][T24857] llc_rcv+0x102d/0x1290 [ 480.566873][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 480.573017][T24857] netif_receive_skb+0xe88/0xf30 [ 480.578200][T24857] tun_get_user+0x70eb/0x7470 [ 480.583713][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 480.589401][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.594942][T24857] ? tun_chr_read_iter+0x530/0x530 [ 480.600625][T24857] vfs_write+0x1508/0x1710 [ 480.610207][T24857] ksys_write+0x267/0x450 [ 480.614787][T24857] __se_sys_write+0x92/0xb0 [ 480.619421][T24857] __x64_sys_write+0x4a/0x70 [ 480.624363][T24857] do_syscall_64+0xa2/0x120 [ 480.629353][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.635641][T24857] RIP: 0033:0x440109 [ 480.640525][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 480.664492][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 480.673211][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 480.681564][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 480.693975][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 480.702678][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 480.711553][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 480.719986][T24857] [ 480.722970][T24857] Uninit was created at: [ 480.727526][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 480.736513][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 480.741691][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 480.748102][T24857] __alloc_skb+0x2e5/0xaf0 [ 480.753633][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 480.759733][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 480.766083][T24857] tun_get_user+0xe95/0x7470 [ 480.774621][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.780134][T24857] vfs_write+0x1508/0x1710 [ 480.785288][T24857] ksys_write+0x267/0x450 [ 480.790272][T24857] __se_sys_write+0x92/0xb0 [ 480.795513][T24857] __x64_sys_write+0x4a/0x70 [ 480.800664][T24857] do_syscall_64+0xa2/0x120 [ 480.805746][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.814115][T24857] ===================================================== [ 480.821876][T24857] ===================================================== [ 480.829297][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x730/0xdf0 [ 480.836803][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 480.848411][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 480.859482][T24857] Call Trace: [ 480.868421][T24857] dump_stack+0x1df/0x240 [ 480.873171][T24857] kmsan_report+0xfb/0x1e0 [ 480.877823][T24857] __msan_warning+0x5f/0xa0 [ 480.882969][T24857] skb_copy_bits+0x730/0xdf0 [ 480.887961][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 480.893515][T24857] llc_rcv+0x102d/0x1290 [ 480.898677][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 480.907159][T24857] netif_receive_skb+0xe88/0xf30 [ 480.912833][T24857] tun_get_user+0x70eb/0x7470 [ 480.917943][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 480.923549][T24857] tun_chr_write_iter+0x34e/0x400 [ 480.929723][T24857] ? tun_chr_read_iter+0x530/0x530 [ 480.935241][T24857] vfs_write+0x1508/0x1710 [ 480.939972][T24857] ksys_write+0x267/0x450 [ 480.944781][T24857] __se_sys_write+0x92/0xb0 [ 480.952332][T24857] __x64_sys_write+0x4a/0x70 [ 480.957488][T24857] do_syscall_64+0xa2/0x120 [ 480.962909][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 480.970118][T24857] RIP: 0033:0x440109 [ 480.974137][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 480.996169][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 481.005386][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 481.014449][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 481.023198][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 481.036797][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 481.046323][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 481.055110][T24857] [ 481.057756][T24857] Uninit was created at: [ 481.062344][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 481.074948][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 481.080488][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 481.087560][T24857] __alloc_skb+0x2e5/0xaf0 [ 481.092270][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 481.098382][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 481.104488][T24857] tun_get_user+0xe95/0x7470 [ 481.112998][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.118583][T24857] vfs_write+0x1508/0x1710 [ 481.123299][T24857] ksys_write+0x267/0x450 [ 481.128274][T24857] __se_sys_write+0x92/0xb0 [ 481.134227][T24857] __x64_sys_write+0x4a/0x70 [ 481.139120][T24857] do_syscall_64+0xa2/0x120 [ 481.143738][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.153352][T24857] ===================================================== [ 481.161666][T24857] ===================================================== [ 481.171569][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x74d/0xdf0 [ 481.179367][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 481.190378][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 481.201165][T24857] Call Trace: [ 481.209186][T24857] dump_stack+0x1df/0x240 [ 481.214318][T24857] kmsan_report+0xfb/0x1e0 [ 481.219063][T24857] __msan_warning+0x5f/0xa0 [ 481.224303][T24857] skb_copy_bits+0x74d/0xdf0 [ 481.229363][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 481.235078][T24857] llc_rcv+0x102d/0x1290 [ 481.245915][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 481.251598][T24857] netif_receive_skb+0xe88/0xf30 [ 481.256955][T24857] tun_get_user+0x70eb/0x7470 [ 481.262541][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 481.268691][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.274040][T24857] ? tun_chr_read_iter+0x530/0x530 [ 481.281496][T24857] vfs_write+0x1508/0x1710 [ 481.286156][T24857] ksys_write+0x267/0x450 [ 481.291082][T24857] __se_sys_write+0x92/0xb0 [ 481.296434][T24857] __x64_sys_write+0x4a/0x70 [ 481.302844][T24857] do_syscall_64+0xa2/0x120 [ 481.307755][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.314373][T24857] RIP: 0033:0x440109 [ 481.324301][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 481.346035][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 481.358047][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 481.366568][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 481.375199][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 481.383989][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 481.392333][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 481.401700][T24857] [ 481.404203][T24857] Uninit was created at: [ 481.408739][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 481.415291][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 481.420907][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 481.427371][T24857] __alloc_skb+0x2e5/0xaf0 [ 481.432168][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 481.442538][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 481.448340][T24857] tun_get_user+0xe95/0x7470 [ 481.453146][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.458842][T24857] vfs_write+0x1508/0x1710 [ 481.463686][T24857] ksys_write+0x267/0x450 [ 481.468482][T24857] __se_sys_write+0x92/0xb0 [ 481.479221][T24857] __x64_sys_write+0x4a/0x70 [ 481.484329][T24857] do_syscall_64+0xa2/0x120 [ 481.489565][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.496588][T24857] ===================================================== [ 481.504698][T24857] ===================================================== [ 481.516057][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x8fa/0xdf0 [ 481.524102][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 481.534538][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 481.546095][T24857] Call Trace: [ 481.550059][T24857] dump_stack+0x1df/0x240 [ 481.557835][T24857] kmsan_report+0xfb/0x1e0 [ 481.562857][T24857] __msan_warning+0x5f/0xa0 [ 481.568376][T24857] skb_copy_bits+0x8fa/0xdf0 [ 481.573883][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 481.579178][T24857] llc_rcv+0x102d/0x1290 [ 481.584156][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 481.595601][T24857] netif_receive_skb+0xe88/0xf30 [ 481.601155][T24857] tun_get_user+0x70eb/0x7470 [ 481.606497][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 481.612260][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.618180][T24857] ? tun_chr_read_iter+0x530/0x530 [ 481.624239][T24857] vfs_write+0x1508/0x1710 [ 481.628843][T24857] ksys_write+0x267/0x450 [ 481.636010][T24857] __se_sys_write+0x92/0xb0 [ 481.640807][T24857] __x64_sys_write+0x4a/0x70 [ 481.645697][T24857] do_syscall_64+0xa2/0x120 [ 481.650410][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.656631][T24857] RIP: 0033:0x440109 [ 481.660933][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 481.682591][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 481.692115][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 481.701764][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 481.710283][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 481.722056][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 481.730320][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 481.738675][T24857] [ 481.741104][T24857] Uninit was created at: [ 481.745680][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 481.751436][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 481.759474][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 481.765963][T24857] __alloc_skb+0x2e5/0xaf0 [ 481.770697][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 481.776201][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 481.781990][T24857] tun_get_user+0xe95/0x7470 [ 481.787019][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.797937][T24857] vfs_write+0x1508/0x1710 [ 481.803096][T24857] ksys_write+0x267/0x450 [ 481.808141][T24857] __se_sys_write+0x92/0xb0 [ 481.812959][T24857] __x64_sys_write+0x4a/0x70 [ 481.817938][T24857] do_syscall_64+0xa2/0x120 [ 481.822564][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.831800][T24857] ===================================================== [ 481.839920][T24857] ===================================================== [ 481.847605][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x703/0xdf0 [ 481.855018][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 481.866075][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 481.881707][T24857] Call Trace: [ 481.885101][T24857] dump_stack+0x1df/0x240 [ 481.890160][T24857] kmsan_report+0xfb/0x1e0 [ 481.896100][T24857] __msan_warning+0x5f/0xa0 [ 481.901267][T24857] skb_copy_bits+0x703/0xdf0 [ 481.906591][T24857] __pskb_pull_tail+0x38a/0x1e10 [ 481.911918][T24857] llc_rcv+0x102d/0x1290 [ 481.919000][T24857] ? llc_set_station_handler+0xc0/0xc0 [ 481.925407][T24857] netif_receive_skb+0xe88/0xf30 [ 481.930667][T24857] tun_get_user+0x70eb/0x7470 [ 481.935920][T24857] ? kmsan_get_metadata+0x4f/0x180 [ 481.941444][T24857] tun_chr_write_iter+0x34e/0x400 [ 481.947948][T24857] ? tun_chr_read_iter+0x530/0x530 [ 481.958852][T24857] vfs_write+0x1508/0x1710 [ 481.963892][T24857] ksys_write+0x267/0x450 [ 481.968735][T24857] __se_sys_write+0x92/0xb0 [ 481.975401][T24857] __x64_sys_write+0x4a/0x70 [ 481.980553][T24857] do_syscall_64+0xa2/0x120 [ 481.986151][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 481.992588][T24857] RIP: 0033:0x440109 [ 481.999848][T24857] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 [ 482.021408][T24857] RSP: 002b:00007ffdd6ac4a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 482.031139][T24857] RAX: ffffffffffffffda RBX: 00007ffdd6ac4a80 RCX: 0000000000440109 [ 482.039745][T24857] RDX: 000000000000fdef RSI: 00000000200000c0 RDI: 0000000000000003 [ 482.048339][T24857] RBP: 0000000000000000 R08: 000000000007325c R09: 000000000007325c [ 482.056957][T24857] R10: 000000000007325c R11: 0000000000000246 R12: 00000000000f4240 [ 482.066238][T24857] R13: 000000000007325c R14: 00007ffdd6ac4a6c R15: 00007ffdd6ac4a70 [ 482.081368][T24857] [ 482.084089][T24857] Uninit was created at: [ 482.089152][T24857] kmsan_internal_poison_shadow+0x5c/0xf0 [ 482.095623][T24857] kmsan_slab_alloc+0x8d/0xe0 [ 482.100974][T24857] __kmalloc_node_track_caller+0xb42/0x1530 [ 482.107345][T24857] __alloc_skb+0x2e5/0xaf0 [ 482.117701][T24857] alloc_skb_with_frags+0x17f/0xa60 [ 482.123508][T24857] sock_alloc_send_pskb+0xb86/0xd30 [ 482.129524][T24857] tun_get_user+0xe95/0x7470 [ 482.134444][T24857] tun_chr_write_iter+0x34e/0x400 [ 482.141095][T24857] vfs_write+0x1508/0x1710 [ 482.152141][T24857] ksys_write+0x267/0x450 [ 482.157227][T24857] __se_sys_write+0x92/0xb0 [ 482.162285][T24857] __x64_sys_write+0x4a/0x70 [ 482.167621][T24857] do_syscall_64+0xa2/0x120 [ 482.173288][T24857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 482.179560][T24857] ===================================================== [ 482.191746][T24857] ===================================================== [ 482.200059][T24857] BUG: KMSAN: uninit-value in skb_copy_bits+0x730/0xdf0 [ 482.208431][T24857] CPU: 0 PID: 24857 Comm: syz-executor014 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 482.219475][T24857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 482.230596][T24857] Call Trace: [ 482.238876][T24857] dump_stack+0x1df/0x240 [ 482.243635][T24857] kmsan_report+0xfb/0x1e0