Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 75.070033] ================================================================== [ 75.077431] BUG: KMSAN: uninit-value in strlen+0x3b/0xa0 [ 75.082880] CPU: 1 PID: 9306 Comm: syz-executor172 Not tainted 4.20.0-rc7+ #2 [ 75.090135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.099472] Call Trace: [ 75.102056] dump_stack+0x173/0x1d0 [ 75.105764] kmsan_report+0x12e/0x2a0 [ 75.109554] __msan_warning+0x82/0xf0 [ 75.113343] strlen+0x3b/0xa0 [ 75.116437] tipc_nl_compat_link_set+0x929/0x1220 [ 75.121274] ? tipc_nl_compat_link_dump+0x5e0/0x5e0 [ 75.126288] tipc_nl_compat_doit+0x3aa/0xaf0 [ 75.130786] ? ns_capable+0x132/0x1d0 [ 75.134622] tipc_nl_compat_recv+0x14d7/0x2760 [ 75.139210] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 75.144590] ? tipc_nl_node_dump+0x1300/0x1300 [ 75.149388] ? tipc_nl_compat_link_dump+0x5e0/0x5e0 [ 75.154395] ? tipc_netlink_compat_stop+0x40/0x40 [ 75.159227] genl_rcv_msg+0x185f/0x1a60 [ 75.163202] ? __msan_poison_alloca+0x1f0/0x2a0 [ 75.167863] netlink_rcv_skb+0x444/0x640 [ 75.171908] ? genl_unbind+0x390/0x390 [ 75.175789] genl_rcv+0x63/0x80 [ 75.179054] netlink_unicast+0xf40/0x1020 [ 75.183204] netlink_sendmsg+0x127f/0x1300 [ 75.187531] ___sys_sendmsg+0xdb9/0x11b0 [ 75.191585] ? netlink_getsockopt+0x1460/0x1460 [ 75.196242] ? __fget_light+0x60/0x750 [ 75.200129] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 75.205477] ? __fget_light+0x1fe/0x750 [ 75.209453] __se_sys_sendmsg+0x305/0x460 [ 75.213601] __x64_sys_sendmsg+0x4a/0x70 [ 75.217651] do_syscall_64+0xbc/0xf0 [ 75.221443] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 75.226615] RIP: 0033:0x440e29 [ 75.229789] Code: e8 cc 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 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 75.248900] RSP: 002b:00007fff7fdb6888 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 75.256594] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e29 [ 75.263850] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 75.271104] RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.278359] R10: 0000000001fb6880 R11: 0000000000000213 R12: 0000000000012572 [ 75.285612] R13: 0000000000401e00 R14: 0000000000000000 R15: 0000000000000000 [ 75.292878] [ 75.294486] Uninit was created at: [ 75.298029] kmsan_internal_poison_shadow+0x92/0x150 [ 75.303114] kmsan_kmalloc+0xa6/0x130 [ 75.306896] kmsan_slab_alloc+0xe/0x10 [ 75.310767] __kmalloc_node_track_caller+0xe18/0x1030 [ 75.315939] __alloc_skb+0x309/0xa20 [ 75.319637] netlink_sendmsg+0xb82/0x1300 [ 75.323799] ___sys_sendmsg+0xdb9/0x11b0 [ 75.327853] __se_sys_sendmsg+0x305/0x460 [ 75.332008] __x64_sys_sendmsg+0x4a/0x70 [ 75.336761] do_syscall_64+0xbc/0xf0 [ 75.340470] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 75.345898] ================================================================== [ 75.353490] Disabling lock debugging due to kernel taint [ 75.358923] Kernel panic - not syncing: panic_on_warn set ... [ 75.364823] CPU: 1 PID: 9306 Comm: syz-executor172 Tainted: G B 4.20.0-rc7+ #2 [ 75.373464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.382803] Call Trace: [ 75.385381] dump_stack+0x173/0x1d0 [ 75.389007] panic+0x3ce/0x961 [ 75.392203] kmsan_report+0x293/0x2a0 [ 75.396003] __msan_warning+0x82/0xf0 [ 75.399805] strlen+0x3b/0xa0 [ 75.402902] tipc_nl_compat_link_set+0x929/0x1220 [ 75.407742] ? tipc_nl_compat_link_dump+0x5e0/0x5e0 [ 75.412756] tipc_nl_compat_doit+0x3aa/0xaf0 [ 75.417182] ? ns_capable+0x132/0x1d0 [ 75.420986] tipc_nl_compat_recv+0x14d7/0x2760 [ 75.425570] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 75.430921] ? tipc_nl_node_dump+0x1300/0x1300 [ 75.435500] ? tipc_nl_compat_link_dump+0x5e0/0x5e0 [ 75.440516] ? tipc_netlink_compat_stop+0x40/0x40 [ 75.445346] genl_rcv_msg+0x185f/0x1a60 [ 75.449316] ? __msan_poison_alloca+0x1f0/0x2a0 [ 75.453978] netlink_rcv_skb+0x444/0x640 [ 75.458035] ? genl_unbind+0x390/0x390 [ 75.461914] genl_rcv+0x63/0x80 [ 75.465195] netlink_unicast+0xf40/0x1020 [ 75.469350] netlink_sendmsg+0x127f/0x1300 [ 75.473582] ___sys_sendmsg+0xdb9/0x11b0 [ 75.477631] ? netlink_getsockopt+0x1460/0x1460 [ 75.482514] ? __fget_light+0x60/0x750 [ 75.486388] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 75.491735] ? __fget_light+0x1fe/0x750 [ 75.495728] __se_sys_sendmsg+0x305/0x460 [ 75.499886] __x64_sys_sendmsg+0x4a/0x70 [ 75.503931] do_syscall_64+0xbc/0xf0 [ 75.507635] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 75.512810] RIP: 0033:0x440e29 [ 75.515985] Code: e8 cc 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 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 75.534983] RSP: 002b:00007fff7fdb6888 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 75.542686] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e29 [ 75.549936] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 75.557195] RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8 [ 75.564453] R10: 0000000001fb6880 R11: 0000000000000213 R12: 0000000000012572 [ 75.571717] R13: 0000000000401e00 R14: 0000000000000000 R15: 0000000000000000 [ 75.580181] Kernel Offset: disabled [ 75.583807] Rebooting in 86400 seconds..