Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 101.355617][ T32] audit: type=1400 audit(1596530393.471:8): avc: denied { execmem } for pid=8469 comm="syz-executor080" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 101.364470][ T8469] ===================================================== [ 101.383273][ T8469] BUG: KMSAN: uninit-value in __fget_light+0x5de/0x6d0 [ 101.390141][ T8469] CPU: 1 PID: 8469 Comm: syz-executor080 Not tainted 5.8.0-rc5-syzkaller #0 [ 101.398798][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.408848][ T8469] Call Trace: [ 101.412134][ T8469] dump_stack+0x1df/0x240 [ 101.416475][ T8469] kmsan_report+0xf7/0x1e0 [ 101.420890][ T8469] __msan_warning+0x58/0xa0 [ 101.425390][ T8469] __fget_light+0x5de/0x6d0 [ 101.429884][ T8469] ? __msan_get_context_state+0x9/0x20 [ 101.435341][ T8469] __fdget+0x4e/0x60 [ 101.439255][ T8469] bpf_map_get+0x47/0x2b0 [ 101.443596][ T8469] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 101.449399][ T8469] bpf_sk_storage_diag_alloc+0x49a/0xb50 [ 101.455042][ T8469] __inet_diag_dump_start+0x68c/0x11f0 [ 101.460512][ T8469] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 101.466607][ T8469] inet_diag_dump_start_compat+0x4d/0x60 [ 101.472257][ T8469] ? __inet_diag_dump+0x510/0x510 [ 101.477290][ T8469] __netlink_dump_start+0x633/0xd00 [ 101.482501][ T8469] inet_diag_rcv_msg_compat+0x5c1/0x940 [ 101.488045][ T8469] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 101.493876][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 101.499066][ T8469] ? __inet_diag_dump+0x510/0x510 [ 101.504079][ T8469] ? inet_diag_dump_start_compat+0x60/0x60 [ 101.509875][ T8469] ? inet_diag_dump+0xc0/0xc0 [ 101.514545][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 101.520605][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 101.525801][ T8469] ? inet_diag_unregister+0x110/0x110 [ 101.531185][ T8469] sock_diag_rcv_msg+0x211/0x610 [ 101.536131][ T8469] netlink_rcv_skb+0x451/0x650 [ 101.540885][ T8469] ? sock_diag_bind+0x170/0x170 [ 101.545726][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 101.551815][ T8469] sock_diag_rcv+0x63/0x80 [ 101.556237][ T8469] netlink_unicast+0xf9e/0x1100 [ 101.561092][ T8469] ? diag_net_exit+0x90/0x90 [ 101.565708][ T8469] netlink_sendmsg+0x1246/0x14d0 [ 101.570686][ T8469] ? netlink_getsockopt+0x1440/0x1440 [ 101.576048][ T8469] ____sys_sendmsg+0x1370/0x1400 [ 101.580996][ T8469] __sys_sendmsg+0x623/0x750 [ 101.585616][ T8469] ? kmsan_set_origin_checked+0x95/0xf0 [ 101.591182][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 101.597261][ T8469] ? up_read+0x40/0x2b0 [ 101.601414][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 101.606617][ T8469] ? kmsan_get_metadata+0x4f/0x180 [ 101.611734][ T8469] ? kmsan_get_metadata+0x4f/0x180 [ 101.616849][ T8469] __se_compat_sys_sendmsg+0xa7/0xc0 [ 101.622183][ T8469] ? __x32_compat_sys_getsockopt+0x80/0x80 [ 101.628012][ T8469] __ia32_compat_sys_sendmsg+0x4a/0x70 [ 101.633465][ T8469] __do_fast_syscall_32+0x2aa/0x400 [ 101.638661][ T8469] do_fast_syscall_32+0x6b/0xd0 [ 101.643505][ T8469] do_SYSENTER_32+0x73/0x90 [ 101.648017][ T8469] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 101.654348][ T8469] RIP: 0023:0xf7f1e549 [ 101.658397][ T8469] Code: Bad RIP value. [ 101.662455][ T8469] RSP: 002b:00000000ffb2847c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 [ 101.670873][ T8469] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 101.678846][ T8469] RDX: 0000000000000000 RSI: 00000000080ea078 RDI: 00000000ffb284d0 [ 101.686830][ T8469] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 101.694792][ T8469] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 101.702757][ T8469] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 101.710735][ T8469] [ 101.713045][ T8469] Uninit was created at: [ 101.717279][ T8469] kmsan_internal_poison_shadow+0x66/0xd0 [ 101.722981][ T8469] kmsan_slab_alloc+0x8a/0xe0 [ 101.727654][ T8469] __kmalloc_node_track_caller+0xb40/0x1200 [ 101.733551][ T8469] __alloc_skb+0x2fd/0xac0 [ 101.737952][ T8469] netlink_sendmsg+0x7d3/0x14d0 [ 101.742790][ T8469] ____sys_sendmsg+0x1370/0x1400 [ 101.747724][ T8469] __sys_sendmsg+0x623/0x750 [ 101.752313][ T8469] __se_compat_sys_sendmsg+0xa7/0xc0 [ 101.757612][ T8469] __ia32_compat_sys_sendmsg+0x4a/0x70 [ 101.763087][ T8469] __do_fast_syscall_32+0x2aa/0x400 [ 101.768296][ T8469] do_fast_syscall_32+0x6b/0xd0 [ 101.773143][ T8469] do_SYSENTER_32+0x73/0x90 [ 101.777638][ T8469] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 101.783969][ T8469] ===================================================== [ 101.790892][ T8469] Disabling lock debugging due to kernel taint [ 101.797051][ T8469] Kernel panic - not syncing: panic_on_warn set ... [ 101.803663][ T8469] CPU: 1 PID: 8469 Comm: syz-executor080 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 101.813707][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.823800][ T8469] Call Trace: [ 101.827086][ T8469] dump_stack+0x1df/0x240 [ 101.831408][ T8469] panic+0x3d5/0xc3e [ 101.835321][ T8469] kmsan_report+0x1df/0x1e0 [ 101.839823][ T8469] __msan_warning+0x58/0xa0 [ 101.844310][ T8469] __fget_light+0x5de/0x6d0 [ 101.848812][ T8469] ? __msan_get_context_state+0x9/0x20 [ 101.854258][ T8469] __fdget+0x4e/0x60 [ 101.858140][ T8469] bpf_map_get+0x47/0x2b0 [ 101.862469][ T8469] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 101.868264][ T8469] bpf_sk_storage_diag_alloc+0x49a/0xb50 [ 101.873899][ T8469] __inet_diag_dump_start+0x68c/0x11f0 [ 101.879343][ T8469] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 101.885413][ T8469] inet_diag_dump_start_compat+0x4d/0x60 [ 101.891027][ T8469] ? __inet_diag_dump+0x510/0x510 [ 101.896035][ T8469] __netlink_dump_start+0x633/0xd00 [ 101.901237][ T8469] inet_diag_rcv_msg_compat+0x5c1/0x940 [ 101.906791][ T8469] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 101.912581][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 101.917781][ T8469] ? __inet_diag_dump+0x510/0x510 [ 101.922799][ T8469] ? inet_diag_dump_start_compat+0x60/0x60 [ 101.928628][ T8469] ? inet_diag_dump+0xc0/0xc0 [ 101.933328][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 101.939382][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 101.944584][ T8469] ? inet_diag_unregister+0x110/0x110 [ 101.949944][ T8469] sock_diag_rcv_msg+0x211/0x610 [ 101.954881][ T8469] netlink_rcv_skb+0x451/0x650 [ 101.959629][ T8469] ? sock_diag_bind+0x170/0x170 [ 101.964479][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 101.970548][ T8469] sock_diag_rcv+0x63/0x80 [ 101.974951][ T8469] netlink_unicast+0xf9e/0x1100 [ 101.979807][ T8469] ? diag_net_exit+0x90/0x90 [ 101.984405][ T8469] netlink_sendmsg+0x1246/0x14d0 [ 101.989357][ T8469] ? netlink_getsockopt+0x1440/0x1440 [ 101.994712][ T8469] ____sys_sendmsg+0x1370/0x1400 [ 101.999667][ T8469] __sys_sendmsg+0x623/0x750 [ 102.004259][ T8469] ? kmsan_set_origin_checked+0x95/0xf0 [ 102.009785][ T8469] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 102.015840][ T8469] ? up_read+0x40/0x2b0 [ 102.019978][ T8469] ? kmsan_get_metadata+0x11d/0x180 [ 102.025213][ T8469] ? kmsan_get_metadata+0x4f/0x180 [ 102.030323][ T8469] ? kmsan_get_metadata+0x4f/0x180 [ 102.035438][ T8469] __se_compat_sys_sendmsg+0xa7/0xc0 [ 102.040736][ T8469] ? __x32_compat_sys_getsockopt+0x80/0x80 [ 102.046539][ T8469] __ia32_compat_sys_sendmsg+0x4a/0x70 [ 102.051982][ T8469] __do_fast_syscall_32+0x2aa/0x400 [ 102.057170][ T8469] do_fast_syscall_32+0x6b/0xd0 [ 102.062012][ T8469] do_SYSENTER_32+0x73/0x90 [ 102.066525][ T8469] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 102.072852][ T8469] RIP: 0023:0xf7f1e549 [ 102.076896][ T8469] Code: Bad RIP value. [ 102.080938][ T8469] RSP: 002b:00000000ffb2847c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 [ 102.089333][ T8469] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 102.097289][ T8469] RDX: 0000000000000000 RSI: 00000000080ea078 RDI: 00000000ffb284d0 [ 102.105245][ T8469] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 102.113215][ T8469] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 102.121189][ T8469] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 102.130209][ T8469] Kernel Offset: 0x2d000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 102.141828][ T8469] Rebooting in 86400 seconds..