[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 60.658854][ T6811] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.664192][ T6816] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.680866][ T6817] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.681309][ T6818] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.690585][ T6819] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. executing program executing program executing program [ 60.700231][ T6816] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.719073][ T6820] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.722523][ T6811] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.737076][ T6817] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.746408][ T6819] netlink: 'syz-executor205': attribute type 2 has an invalid length. executing program [ 60.756136][ T6818] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.764540][ T6820] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.773682][ T6821] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.773701][ T6822] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.784526][ T6823] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 60.797404][ T6824] netlink: 6 bytes leftover after parsing attributes in process `syz-executor205'. [ 60.806155][ T6821] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.824040][ T6825] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.832471][ T6822] netlink: 'syz-executor205': attribute type 2 has an invalid length. [ 60.841114][ T6824] netlink: 'syz-executor205': attribute type 2 has an invalid length. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 60.984308][ T6873] ================================================================== [ 60.992581][ T6873] BUG: KASAN: vmalloc-out-of-bounds in tipc_nl_publ_dump+0xae0/0xce0 [ 61.000640][ T6873] Read of size 2 at addr ffffc90004de5014 by task syz-executor205/6873 [ 61.008860][ T6873] [ 61.011193][ T6873] CPU: 1 PID: 6873 Comm: syz-executor205 Not tainted 5.8.0-rc1-syzkaller #0 [ 61.019872][ T6873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.030208][ T6873] Call Trace: executing program [ 61.033490][ T6873] dump_stack+0x18f/0x20d [ 61.037832][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.042941][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.048050][ T6873] print_address_description.constprop.0.cold+0x5/0x436 [ 61.054985][ T6873] ? vprintk_func+0x97/0x1a6 [ 61.059664][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.064769][ T6873] kasan_report.cold+0x1f/0x37 [ 61.069518][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.074632][ T6873] tipc_nl_publ_dump+0xae0/0xce0 [ 61.079553][ T6873] ? __mutex_lock+0x626/0x10d0 [ 61.084323][ T6873] ? tipc_nl_sk_dump+0x30/0x30 [ 61.089066][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.094768][ T6873] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 61.100304][ T6873] ? kmem_cache_alloc_node_trace+0x3b0/0x400 [ 61.106264][ T6873] ? __kmalloc_node_track_caller+0x38/0x60 [ 61.112059][ T6873] ? kasan_unpoison_shadow+0x33/0x40 [ 61.117347][ T6873] ? __phys_addr+0x9a/0x110 [ 61.121830][ T6873] ? memset+0x20/0x40 [ 61.125825][ T6873] genl_lock_dumpit+0x7f/0xb0 [ 61.130511][ T6873] netlink_dump+0x4cd/0xf60 [ 61.135010][ T6873] ? netlink_insert+0x1670/0x1670 [ 61.140026][ T6873] ? __mutex_unlock_slowpath+0xe2/0x610 [ 61.145574][ T6873] ? genl_start+0x45a/0x6e0 [ 61.150063][ T6873] __netlink_dump_start+0x643/0x900 [ 61.155251][ T6873] ? genl_rcv_msg+0x9e0/0x9e0 [ 61.159934][ T6873] ? tipc_nl_sk_dump+0x30/0x30 [ 61.164696][ T6873] genl_family_rcv_msg_dumpit+0x2ac/0x310 [ 61.170424][ T6873] ? genl_rcv+0x40/0x40 [ 61.174566][ T6873] ? mutex_lock_io_nested+0xf60/0xf60 [ 61.179934][ T6873] ? mark_lock+0xbc/0x1710 [ 61.184354][ T6873] ? genl_rcv_msg+0x9e0/0x9e0 [ 61.189021][ T6873] ? genl_unlock+0x20/0x20 [ 61.193416][ T6873] ? genl_parallel_done+0x170/0x170 [ 61.198788][ T6873] ? __radix_tree_lookup+0x1f3/0x290 [ 61.204108][ T6873] genl_rcv_msg+0x797/0x9e0 [ 61.208695][ T6873] ? genl_family_rcv_msg_attrs_parse.isra.0+0x310/0x310 [ 61.215636][ T6873] ? lock_acquire+0x1f1/0xad0 [ 61.220304][ T6873] ? genl_rcv+0x15/0x40 [ 61.224459][ T6873] ? lock_release+0x8d0/0x8d0 [ 61.229133][ T6873] netlink_rcv_skb+0x15a/0x430 [ 61.233891][ T6873] ? genl_family_rcv_msg_attrs_parse.isra.0+0x310/0x310 [ 61.240828][ T6873] ? netlink_ack+0xa10/0xa10 [ 61.245410][ T6873] genl_rcv+0x24/0x40 [ 61.249398][ T6873] netlink_unicast+0x533/0x7d0 [ 61.254237][ T6873] ? netlink_attachskb+0x810/0x810 [ 61.259349][ T6873] ? _copy_from_iter_full+0x247/0x890 [ 61.264710][ T6873] ? __phys_addr_symbol+0x2c/0x70 [ 61.269727][ T6873] ? __check_object_size+0x171/0x3e4 [ 61.275009][ T6873] netlink_sendmsg+0x856/0xd90 [ 61.279762][ T6873] ? netlink_unicast+0x7d0/0x7d0 [ 61.284694][ T6873] ? netlink_unicast+0x7d0/0x7d0 [ 61.289627][ T6873] sock_sendmsg+0xcf/0x120 [ 61.294114][ T6873] ____sys_sendmsg+0x6e8/0x810 [ 61.298884][ T6873] ? kernel_sendmsg+0x50/0x50 [ 61.303555][ T6873] ? do_recvmmsg+0x6d0/0x6d0 [ 61.308138][ T6873] ? release_pages+0x641/0x17a0 [ 61.313003][ T6873] ___sys_sendmsg+0xf3/0x170 [ 61.317579][ T6873] ? sendmsg_copy_msghdr+0x160/0x160 [ 61.322853][ T6873] ? do_huge_pmd_anonymous_page+0x1b94/0x2230 [ 61.328904][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.334626][ T6873] ? do_huge_pmd_anonymous_page+0x8ef/0x2230 [ 61.340601][ T6873] ? handle_mm_fault+0xad9/0x4420 [ 61.345611][ T6873] ? __fget_light+0x215/0x280 [ 61.350288][ T6873] __sys_sendmsg+0xe5/0x1b0 [ 61.354800][ T6873] ? __sys_sendmsg_sock+0xb0/0xb0 [ 61.359816][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.365528][ T6873] ? do_syscall_64+0x1c/0xe0 [ 61.370121][ T6873] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.376123][ T6873] do_syscall_64+0x60/0xe0 [ 61.380544][ T6873] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.386435][ T6873] RIP: 0033:0x441319 [ 61.390356][ T6873] Code: Bad RIP value. [ 61.394415][ T6873] RSP: 002b:00007ffcbfda8448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.402821][ T6873] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441319 [ 61.410887][ T6873] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 61.419027][ T6873] RBP: 000000000000ee24 R08: 00000000004002c8 R09: 00000000004002c8 [ 61.426985][ T6873] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402090 [ 61.434956][ T6873] R13: 0000000000402120 R14: 0000000000000000 R15: 0000000000000000 [ 61.442942][ T6873] [ 61.445249][ T6873] [ 61.447580][ T6873] Memory state around the buggy address: [ 61.453382][ T6873] ffffc90004de4f00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 61.461459][ T6873] ffffc90004de4f80: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 61.470824][ T6873] >ffffc90004de5000: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 61.479427][ T6873] ^ [ 61.484022][ T6873] ffffc90004de5080: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 61.492070][ T6873] ffffc90004de5100: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 61.500125][ T6873] ================================================================== [ 61.508401][ T6873] Disabling lock debugging due to kernel taint [ 61.515477][ T6873] Kernel panic - not syncing: panic_on_warn set ... [ 61.522077][ T6873] CPU: 1 PID: 6873 Comm: syz-executor205 Tainted: G B 5.8.0-rc1-syzkaller #0 [ 61.532134][ T6873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.542186][ T6873] Call Trace: [ 61.545483][ T6873] dump_stack+0x18f/0x20d [ 61.549818][ T6873] ? tipc_nl_publ_dump+0xa40/0xce0 [ 61.554916][ T6873] panic+0x2e3/0x75c [ 61.558801][ T6873] ? __warn_printk+0xf3/0xf3 [ 61.563394][ T6873] ? preempt_schedule_common+0x59/0xc0 [ 61.568922][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.574018][ T6873] ? preempt_schedule_thunk+0x16/0x18 [ 61.579392][ T6873] ? trace_hardirqs_on+0x55/0x220 [ 61.584395][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.589501][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.594595][ T6873] end_report+0x4d/0x53 [ 61.598781][ T6873] kasan_report.cold+0xd/0x37 [ 61.603445][ T6873] ? tipc_nl_publ_dump+0xae0/0xce0 [ 61.608560][ T6873] tipc_nl_publ_dump+0xae0/0xce0 [ 61.613501][ T6873] ? __mutex_lock+0x626/0x10d0 [ 61.618300][ T6873] ? tipc_nl_sk_dump+0x30/0x30 [ 61.623325][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.629030][ T6873] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 61.634579][ T6873] ? kmem_cache_alloc_node_trace+0x3b0/0x400 [ 61.640539][ T6873] ? __kmalloc_node_track_caller+0x38/0x60 [ 61.646442][ T6873] ? kasan_unpoison_shadow+0x33/0x40 [ 61.651806][ T6873] ? __phys_addr+0x9a/0x110 [ 61.656291][ T6873] ? memset+0x20/0x40 [ 61.660274][ T6873] genl_lock_dumpit+0x7f/0xb0 [ 61.664935][ T6873] netlink_dump+0x4cd/0xf60 [ 61.669419][ T6873] ? netlink_insert+0x1670/0x1670 [ 61.674424][ T6873] ? __mutex_unlock_slowpath+0xe2/0x610 [ 61.679964][ T6873] ? genl_start+0x45a/0x6e0 [ 61.684448][ T6873] __netlink_dump_start+0x643/0x900 [ 61.689628][ T6873] ? genl_rcv_msg+0x9e0/0x9e0 [ 61.694287][ T6873] ? tipc_nl_sk_dump+0x30/0x30 [ 61.699037][ T6873] genl_family_rcv_msg_dumpit+0x2ac/0x310 [ 61.704735][ T6873] ? genl_rcv+0x40/0x40 [ 61.708886][ T6873] ? mutex_lock_io_nested+0xf60/0xf60 [ 61.714234][ T6873] ? mark_lock+0xbc/0x1710 [ 61.718626][ T6873] ? genl_rcv_msg+0x9e0/0x9e0 [ 61.723282][ T6873] ? genl_unlock+0x20/0x20 [ 61.727735][ T6873] ? genl_parallel_done+0x170/0x170 [ 61.732915][ T6873] ? __radix_tree_lookup+0x1f3/0x290 [ 61.738183][ T6873] genl_rcv_msg+0x797/0x9e0 [ 61.742686][ T6873] ? genl_family_rcv_msg_attrs_parse.isra.0+0x310/0x310 [ 61.749619][ T6873] ? lock_acquire+0x1f1/0xad0 [ 61.754447][ T6873] ? genl_rcv+0x15/0x40 [ 61.758580][ T6873] ? lock_release+0x8d0/0x8d0 [ 61.763238][ T6873] netlink_rcv_skb+0x15a/0x430 [ 61.767982][ T6873] ? genl_family_rcv_msg_attrs_parse.isra.0+0x310/0x310 [ 61.774895][ T6873] ? netlink_ack+0xa10/0xa10 [ 61.779464][ T6873] genl_rcv+0x24/0x40 [ 61.783423][ T6873] netlink_unicast+0x533/0x7d0 [ 61.788164][ T6873] ? netlink_attachskb+0x810/0x810 [ 61.793268][ T6873] ? _copy_from_iter_full+0x247/0x890 [ 61.798631][ T6873] ? __phys_addr_symbol+0x2c/0x70 [ 61.803642][ T6873] ? __check_object_size+0x171/0x3e4 [ 61.808906][ T6873] netlink_sendmsg+0x856/0xd90 [ 61.813648][ T6873] ? netlink_unicast+0x7d0/0x7d0 [ 61.818575][ T6873] ? netlink_unicast+0x7d0/0x7d0 [ 61.823587][ T6873] sock_sendmsg+0xcf/0x120 [ 61.827982][ T6873] ____sys_sendmsg+0x6e8/0x810 [ 61.832736][ T6873] ? kernel_sendmsg+0x50/0x50 [ 61.837425][ T6873] ? do_recvmmsg+0x6d0/0x6d0 [ 61.842018][ T6873] ? release_pages+0x641/0x17a0 [ 61.846872][ T6873] ___sys_sendmsg+0xf3/0x170 [ 61.851445][ T6873] ? sendmsg_copy_msghdr+0x160/0x160 [ 61.856826][ T6873] ? do_huge_pmd_anonymous_page+0x1b94/0x2230 [ 61.862964][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.868675][ T6873] ? do_huge_pmd_anonymous_page+0x8ef/0x2230 [ 61.874645][ T6873] ? handle_mm_fault+0xad9/0x4420 [ 61.879653][ T6873] ? __fget_light+0x215/0x280 [ 61.884322][ T6873] __sys_sendmsg+0xe5/0x1b0 [ 61.888820][ T6873] ? __sys_sendmsg_sock+0xb0/0xb0 [ 61.893833][ T6873] ? check_preemption_disabled+0x38/0x220 [ 61.899532][ T6873] ? do_syscall_64+0x1c/0xe0 [ 61.904107][ T6873] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.910081][ T6873] do_syscall_64+0x60/0xe0 [ 61.914498][ T6873] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.920381][ T6873] RIP: 0033:0x441319 [ 61.924261][ T6873] Code: Bad RIP value. [ 61.928305][ T6873] RSP: 002b:00007ffcbfda8448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.936696][ T6873] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441319 [ 61.944644][ T6873] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 61.952597][ T6873] RBP: 000000000000ee24 R08: 00000000004002c8 R09: 00000000004002c8 [ 61.960698][ T6873] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402090 [ 61.968665][ T6873] R13: 0000000000402120 R14: 0000000000000000 R15: 0000000000000000 [ 61.978241][ T6873] Kernel Offset: disabled [ 61.982625][ T6873] Rebooting in 86400 seconds..