Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 137.702326][ T8502] ===================================================== [ 137.709288][ T8502] BUG: KMSAN: uninit-value in inet_diag_cmd_exact+0x67e/0xb40 [ 137.716737][ T8502] CPU: 1 PID: 8502 Comm: syz-executor562 Not tainted 5.9.0-rc4-syzkaller #0 [ 137.725385][ T8502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.735417][ T8502] Call Trace: [ 137.738708][ T8502] dump_stack+0x21c/0x280 [ 137.743027][ T8502] kmsan_report+0xf7/0x1e0 [ 137.747443][ T8502] __msan_warning+0x58/0xa0 [ 137.751932][ T8502] inet_diag_cmd_exact+0x67e/0xb40 [ 137.757069][ T8502] ? is_module_text_address+0x4d/0x2a0 [ 137.762507][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 137.767688][ T8502] inet_diag_handler_cmd+0x355/0x440 [ 137.772953][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 137.778132][ T8502] ? inet_diag_rcv_msg_compat+0x6c0/0x6c0 [ 137.783833][ T8502] sock_diag_rcv_msg+0x24f/0x620 [ 137.788753][ T8502] netlink_rcv_skb+0x6d7/0x7e0 [ 137.793500][ T8502] ? sock_diag_bind+0x180/0x180 [ 137.798333][ T8502] sock_diag_rcv+0x63/0x80 [ 137.802728][ T8502] netlink_unicast+0x11c8/0x1490 [ 137.807643][ T8502] ? diag_net_exit+0x90/0x90 [ 137.812227][ T8502] netlink_sendmsg+0x173a/0x1840 [ 137.817151][ T8502] ____sys_sendmsg+0xc82/0x1240 [ 137.822030][ T8502] ? netlink_getsockopt+0x17e0/0x17e0 [ 137.827402][ T8502] __sys_sendmsg+0x6d1/0x820 [ 137.832020][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 137.837245][ T8502] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 137.843028][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 137.848253][ T8502] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 137.854042][ T8502] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.860098][ T8502] ? exit_to_user_mode_prepare+0x146/0x540 [ 137.865910][ T8502] __se_sys_sendmsg+0x97/0xb0 [ 137.870691][ T8502] __x64_sys_sendmsg+0x4a/0x70 [ 137.875443][ T8502] do_syscall_64+0x9f/0x140 [ 137.879940][ T8502] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 137.885823][ T8502] RIP: 0033:0x4412b9 [ 137.889706][ T8502] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 137.909290][ T8502] RSP: 002b:00007ffe95ec45b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 137.917679][ T8502] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 137.925633][ T8502] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 137.933692][ T8502] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 137.941648][ T8502] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402060 [ 137.949609][ T8502] R13: 00000000004020f0 R14: 0000000000000000 R15: 0000000000000000 [ 137.957567][ T8502] [ 137.959867][ T8502] Uninit was created at: [ 137.964097][ T8502] kmsan_internal_poison_shadow+0x66/0xd0 [ 137.969803][ T8502] kmsan_slab_alloc+0x8a/0xe0 [ 137.974459][ T8502] __kmalloc_node_track_caller+0x9aa/0x12f0 [ 137.980327][ T8502] __alloc_skb+0x35f/0xb30 [ 137.984810][ T8502] netlink_sendmsg+0xdb9/0x1840 [ 137.989634][ T8502] ____sys_sendmsg+0xc82/0x1240 [ 137.994461][ T8502] __sys_sendmsg+0x6d1/0x820 [ 137.999026][ T8502] __se_sys_sendmsg+0x97/0xb0 [ 138.003677][ T8502] __x64_sys_sendmsg+0x4a/0x70 [ 138.008534][ T8502] do_syscall_64+0x9f/0x140 [ 138.013012][ T8502] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 138.018872][ T8502] ===================================================== [ 138.025775][ T8502] Disabling lock debugging due to kernel taint [ 138.032339][ T8502] Kernel panic - not syncing: panic_on_warn set ... [ 138.039008][ T8502] CPU: 1 PID: 8502 Comm: syz-executor562 Tainted: G B 5.9.0-rc4-syzkaller #0 [ 138.049059][ T8502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.059109][ T8502] Call Trace: [ 138.062409][ T8502] dump_stack+0x21c/0x280 [ 138.066744][ T8502] panic+0x4d7/0xef7 [ 138.070661][ T8502] ? add_taint+0x17c/0x210 [ 138.075087][ T8502] kmsan_report+0x1df/0x1e0 [ 138.079604][ T8502] __msan_warning+0x58/0xa0 [ 138.084121][ T8502] inet_diag_cmd_exact+0x67e/0xb40 [ 138.089252][ T8502] ? is_module_text_address+0x4d/0x2a0 [ 138.094717][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 138.099936][ T8502] inet_diag_handler_cmd+0x355/0x440 [ 138.105229][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 138.110448][ T8502] ? inet_diag_rcv_msg_compat+0x6c0/0x6c0 [ 138.116180][ T8502] sock_diag_rcv_msg+0x24f/0x620 [ 138.121130][ T8502] netlink_rcv_skb+0x6d7/0x7e0 [ 138.125896][ T8502] ? sock_diag_bind+0x180/0x180 [ 138.130773][ T8502] sock_diag_rcv+0x63/0x80 [ 138.135195][ T8502] netlink_unicast+0x11c8/0x1490 [ 138.140138][ T8502] ? diag_net_exit+0x90/0x90 [ 138.144744][ T8502] netlink_sendmsg+0x173a/0x1840 [ 138.149702][ T8502] ____sys_sendmsg+0xc82/0x1240 [ 138.154568][ T8502] ? netlink_getsockopt+0x17e0/0x17e0 [ 138.159961][ T8502] __sys_sendmsg+0x6d1/0x820 [ 138.164596][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 138.169810][ T8502] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.175621][ T8502] ? kmsan_get_metadata+0x116/0x180 [ 138.180824][ T8502] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.186630][ T8502] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.192695][ T8502] ? exit_to_user_mode_prepare+0x146/0x540 [ 138.198512][ T8502] __se_sys_sendmsg+0x97/0xb0 [ 138.203193][ T8502] __x64_sys_sendmsg+0x4a/0x70 [ 138.207961][ T8502] do_syscall_64+0x9f/0x140 [ 138.212468][ T8502] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 138.218355][ T8502] RIP: 0033:0x4412b9 [ 138.222254][ T8502] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 138.241845][ T8502] RSP: 002b:00007ffe95ec45b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 138.250229][ T8502] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 138.258273][ T8502] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 138.266223][ T8502] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 138.274180][ T8502] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402060 [ 138.282135][ T8502] R13: 00000000004020f0 R14: 0000000000000000 R15: 0000000000000000 [ 138.291404][ T8502] Kernel Offset: disabled [ 138.295720][ T8502] Rebooting in 86400 seconds..