Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 77.684165][T11290] ================================================================== [ 77.692527][T11290] BUG: KMSAN: uninit-value in memchr+0xce/0x110 [ 77.698781][T11290] CPU: 1 PID: 11290 Comm: syz-executor861 Not tainted 5.1.0+ #1 [ 77.706387][T11290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.717047][T11290] Call Trace: [ 77.720338][T11290] dump_stack+0x191/0x1f0 [ 77.724654][T11290] kmsan_report+0x162/0x2d0 [ 77.729242][T11290] __msan_warning+0x75/0xe0 [ 77.733947][T11290] memchr+0xce/0x110 [ 77.737959][T11290] tipc_nl_compat_link_reset_stats+0x2a1/0x480 [ 77.744239][T11290] ? tipc_nl_compat_link_set+0x15d0/0x15d0 [ 77.750137][T11290] tipc_nl_compat_doit+0x3ac/0xb00 [ 77.755335][T11290] tipc_nl_compat_recv+0x1b1b/0x27b0 [ 77.760637][T11290] ? tipc_nl_node_get_link+0x910/0x910 [ 77.766078][T11290] ? tipc_nl_compat_link_set+0x15d0/0x15d0 [ 77.771867][T11290] ? tipc_netlink_compat_stop+0x40/0x40 [ 77.777396][T11290] genl_rcv_msg+0x185a/0x1a40 [ 77.782090][T11290] ? kmsan_internal_memset_shadow+0x104/0x3a0 [ 77.788148][T11290] netlink_rcv_skb+0x431/0x620 [ 77.792897][T11290] ? genl_unbind+0x390/0x390 [ 77.797494][T11290] genl_rcv+0x63/0x80 [ 77.801456][T11290] netlink_unicast+0xf3e/0x1020 [ 77.806295][T11290] netlink_sendmsg+0x127e/0x12f0 [ 77.811227][T11290] ? netlink_getsockopt+0x1430/0x1430 [ 77.816580][T11290] ___sys_sendmsg+0xcc6/0x1200 [ 77.821335][T11290] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 77.827229][T11290] ? blkcg_maybe_throttle_current+0x141/0x1260 [ 77.833366][T11290] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 77.839409][T11290] ? __fget_light+0x1cd/0x6e0 [ 77.844075][T11290] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 77.850047][T11290] __se_sys_sendmsg+0x305/0x460 [ 77.854894][T11290] __x64_sys_sendmsg+0x4a/0x70 [ 77.859638][T11290] do_syscall_64+0xbc/0xf0 [ 77.864040][T11290] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 77.869910][T11290] RIP: 0033:0x444199 [ 77.873785][T11290] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 77.893462][T11290] RSP: 002b:00007ffdfa9d80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.901979][T11290] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444199 [ 77.909954][T11290] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 77.918195][T11290] RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002e0 [ 77.926150][T11290] R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000401e40 [ 77.934369][T11290] R13: 0000000000401ed0 R14: 0000000000000000 R15: 0000000000000000 [ 77.942340][T11290] [ 77.944645][T11290] Uninit was created at: [ 77.948872][T11290] kmsan_internal_poison_shadow+0x92/0x150 [ 77.954654][T11290] kmsan_kmalloc+0xa4/0x130 [ 77.959134][T11290] kmsan_slab_alloc+0xe/0x10 [ 77.963706][T11290] __kmalloc_node_track_caller+0xcba/0xf30 [ 77.969489][T11290] __alloc_skb+0x306/0xa10 [ 77.973901][T11290] netlink_sendmsg+0xb81/0x12f0 [ 77.978737][T11290] ___sys_sendmsg+0xcc6/0x1200 [ 77.983490][T11290] __se_sys_sendmsg+0x305/0x460 [ 77.988323][T11290] __x64_sys_sendmsg+0x4a/0x70 [ 77.993156][T11290] do_syscall_64+0xbc/0xf0 [ 77.997560][T11290] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 78.003426][T11290] ================================================================== [ 78.011726][T11290] Disabling lock debugging due to kernel taint [ 78.017885][T11290] Kernel panic - not syncing: panic_on_warn set ... [ 78.024453][T11290] CPU: 1 PID: 11290 Comm: syz-executor861 Tainted: G B 5.1.0+ #1 [ 78.033443][T11290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.043476][T11290] Call Trace: [ 78.046762][T11290] dump_stack+0x191/0x1f0 [ 78.051078][T11290] panic+0x3ca/0xafe [ 78.054970][T11290] kmsan_report+0x2ca/0x2d0 [ 78.059459][T11290] __msan_warning+0x75/0xe0 [ 78.063946][T11290] memchr+0xce/0x110 [ 78.067826][T11290] tipc_nl_compat_link_reset_stats+0x2a1/0x480 [ 78.073965][T11290] ? tipc_nl_compat_link_set+0x15d0/0x15d0 [ 78.079925][T11290] tipc_nl_compat_doit+0x3ac/0xb00 [ 78.085031][T11290] tipc_nl_compat_recv+0x1b1b/0x27b0 [ 78.090322][T11290] ? tipc_nl_node_get_link+0x910/0x910 [ 78.095780][T11290] ? tipc_nl_compat_link_set+0x15d0/0x15d0 [ 78.101600][T11290] ? tipc_netlink_compat_stop+0x40/0x40 [ 78.107134][T11290] genl_rcv_msg+0x185a/0x1a40 [ 78.111817][T11290] ? kmsan_internal_memset_shadow+0x104/0x3a0 [ 78.117886][T11290] netlink_rcv_skb+0x431/0x620 [ 78.122632][T11290] ? genl_unbind+0x390/0x390 [ 78.127256][T11290] genl_rcv+0x63/0x80 [ 78.131216][T11290] netlink_unicast+0xf3e/0x1020 [ 78.136054][T11290] netlink_sendmsg+0x127e/0x12f0 [ 78.140983][T11290] ? netlink_getsockopt+0x1430/0x1430 [ 78.146339][T11290] ___sys_sendmsg+0xcc6/0x1200 [ 78.151097][T11290] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 78.156971][T11290] ? blkcg_maybe_throttle_current+0x141/0x1260 [ 78.163124][T11290] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 78.169173][T11290] ? __fget_light+0x1cd/0x6e0 [ 78.173844][T11290] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 78.179831][T11290] __se_sys_sendmsg+0x305/0x460 [ 78.184683][T11290] __x64_sys_sendmsg+0x4a/0x70 [ 78.189442][T11290] do_syscall_64+0xbc/0xf0 [ 78.193872][T11290] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 78.199891][T11290] RIP: 0033:0x444199 [ 78.210622][T11290] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 78.230216][T11290] RSP: 002b:00007ffdfa9d80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.238703][T11290] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444199 [ 78.246664][T11290] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 78.254621][T11290] RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002e0 [ 78.262577][T11290] R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000401e40 [ 78.270541][T11290] R13: 0000000000401ed0 R14: 0000000000000000 R15: 0000000000000000 [ 78.280120][T11290] Kernel Offset: disabled [ 78.284482][T11290] Rebooting in 86400 seconds..