[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 121.301465][ T32] kauditd_printk_skb: 4 callbacks suppressed [ 121.301515][ T32] audit: type=1800 audit(1583229739.343:39): pid=11472 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 121.342951][ T32] audit: type=1800 audit(1583229739.383:40): pid=11472 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 122.921030][ T32] audit: type=1400 audit(1583229740.963:41): avc: denied { map } for pid=11646 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. [ 131.394897][ T32] audit: type=1400 audit(1583229749.443:42): avc: denied { map } for pid=11658 comm="syz-executor566" path="/root/syz-executor566147809" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 131.426976][T11659] IPVS: ftp: loaded support on port[0] = 21 executing program [ 131.493836][ T32] audit: type=1400 audit(1583229749.543:43): avc: denied { create } for pid=11659 comm="syz-executor566" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 131.500901][T11659] ===================================================== [ 131.518865][ T32] audit: type=1400 audit(1583229749.543:44): avc: denied { write } for pid=11659 comm="syz-executor566" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 131.525590][T11659] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 131.525606][T11659] CPU: 0 PID: 11659 Comm: syz-executor566 Not tainted 5.6.0-rc2-syzkaller #0 [ 131.525614][T11659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.525620][T11659] Call Trace: [ 131.525641][T11659] dump_stack+0x1c9/0x220 [ 131.525667][T11659] kmsan_report+0xf7/0x1e0 [ 131.525722][T11659] __msan_warning+0x58/0xa0 [ 131.550534][ T32] audit: type=1400 audit(1583229749.543:45): avc: denied { read } for pid=11659 comm="syz-executor566" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 131.558144][T11659] ethnl_update_bitset32+0x2c85/0x3860 [ 131.558179][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 131.558224][T11659] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 131.634845][T11659] ? kmsan_memcpy_metadata+0xb/0x10 [ 131.640299][T11659] ? __msan_memcpy+0x43/0x50 [ 131.644879][T11659] ethnl_update_bitset+0x11c/0x130 [ 131.649986][T11659] ethnl_set_linkmodes+0x9f9/0x1430 [ 131.655189][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 131.660370][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.666160][T11659] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 131.671513][T11659] genl_rcv_msg+0x205e/0x2460 [ 131.676213][T11659] netlink_rcv_skb+0x451/0x650 [ 131.680962][T11659] ? genl_unbind+0x380/0x380 [ 131.685554][T11659] genl_rcv+0x63/0x80 [ 131.689519][T11659] netlink_unicast+0xf9e/0x1100 [ 131.694360][T11659] ? genl_pernet_exit+0x90/0x90 [ 131.699201][T11659] netlink_sendmsg+0x1246/0x14d0 [ 131.704137][T11659] ? netlink_getsockopt+0x1440/0x1440 [ 131.709504][T11659] ____sys_sendmsg+0x12b6/0x1350 [ 131.714452][T11659] __sys_sendmsg+0x451/0x5f0 [ 131.719093][T11659] ? __fpregs_load_activate+0x38c/0x3c0 [ 131.724621][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 131.729813][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.735691][T11659] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 131.741786][T11659] ? prepare_exit_to_usermode+0x1ca/0x520 [ 131.747502][T11659] ? kmsan_get_metadata+0x4f/0x180 [ 131.752599][T11659] ? kmsan_get_metadata+0x4f/0x180 [ 131.757696][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.763489][T11659] __ia32_compat_sys_sendmsg+0xed/0x130 [ 131.769017][T11659] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 131.774546][T11659] do_fast_syscall_32+0x3c7/0x6e0 [ 131.779562][T11659] entry_SYSENTER_compat+0x68/0x77 [ 131.784655][T11659] RIP: 0023:0xf7fc9d99 [ 131.788704][T11659] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 131.808330][T11659] RSP: 002b:00000000ffcddb6c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 131.816765][T11659] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 131.824721][T11659] RDX: 0000000000000000 RSI: 00000000ffcddbde RDI: 0000000000000001 [ 131.832682][T11659] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 131.840636][T11659] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 131.848585][T11659] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 131.856544][T11659] [ 131.858846][T11659] Uninit was created at: [ 131.863099][T11659] kmsan_internal_poison_shadow+0x66/0xd0 [ 131.868795][T11659] kmsan_slab_alloc+0x8a/0xe0 [ 131.873451][T11659] __kmalloc_node_track_caller+0xb40/0x1200 [ 131.879318][T11659] __alloc_skb+0x2fd/0xac0 [ 131.883712][T11659] netlink_sendmsg+0x7d3/0x14d0 [ 131.888535][T11659] ____sys_sendmsg+0x12b6/0x1350 [ 131.893446][T11659] __sys_sendmsg+0x451/0x5f0 [ 131.898010][T11659] __ia32_compat_sys_sendmsg+0xed/0x130 [ 131.903543][T11659] do_fast_syscall_32+0x3c7/0x6e0 [ 131.908544][T11659] entry_SYSENTER_compat+0x68/0x77 [ 131.913624][T11659] ===================================================== [ 131.920529][T11659] Disabling lock debugging due to kernel taint [ 131.926664][T11659] Kernel panic - not syncing: panic_on_warn set ... [ 131.933228][T11659] CPU: 0 PID: 11659 Comm: syz-executor566 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 131.943346][T11659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.953376][T11659] Call Trace: [ 131.956643][T11659] dump_stack+0x1c9/0x220 [ 131.960966][T11659] panic+0x3d5/0xc3e [ 131.964861][T11659] kmsan_report+0x1df/0x1e0 [ 131.969343][T11659] __msan_warning+0x58/0xa0 [ 131.973825][T11659] ethnl_update_bitset32+0x2c85/0x3860 [ 131.979283][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 131.984469][T11659] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 131.990615][T11659] ? kmsan_memcpy_metadata+0xb/0x10 [ 131.995790][T11659] ? __msan_memcpy+0x43/0x50 [ 132.000359][T11659] ethnl_update_bitset+0x11c/0x130 [ 132.005456][T11659] ethnl_set_linkmodes+0x9f9/0x1430 [ 132.010648][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 132.015825][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.021608][T11659] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 132.026956][T11659] genl_rcv_msg+0x205e/0x2460 [ 132.031630][T11659] netlink_rcv_skb+0x451/0x650 [ 132.036384][T11659] ? genl_unbind+0x380/0x380 [ 132.040977][T11659] genl_rcv+0x63/0x80 [ 132.044949][T11659] netlink_unicast+0xf9e/0x1100 [ 132.049781][T11659] ? genl_pernet_exit+0x90/0x90 [ 132.054618][T11659] netlink_sendmsg+0x1246/0x14d0 [ 132.059553][T11659] ? netlink_getsockopt+0x1440/0x1440 [ 132.064909][T11659] ____sys_sendmsg+0x12b6/0x1350 [ 132.069841][T11659] __sys_sendmsg+0x451/0x5f0 [ 132.074424][T11659] ? __fpregs_load_activate+0x38c/0x3c0 [ 132.079988][T11659] ? kmsan_get_metadata+0x11d/0x180 [ 132.085176][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.090961][T11659] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 132.097005][T11659] ? prepare_exit_to_usermode+0x1ca/0x520 [ 132.102706][T11659] ? kmsan_get_metadata+0x4f/0x180 [ 132.107803][T11659] ? kmsan_get_metadata+0x4f/0x180 [ 132.112892][T11659] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.118732][T11659] __ia32_compat_sys_sendmsg+0xed/0x130 [ 132.124291][T11659] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 132.129813][T11659] do_fast_syscall_32+0x3c7/0x6e0 [ 132.134848][T11659] entry_SYSENTER_compat+0x68/0x77 [ 132.139938][T11659] RIP: 0023:0xf7fc9d99 [ 132.143983][T11659] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 132.163574][T11659] RSP: 002b:00000000ffcddb6c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 132.171977][T11659] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 132.180373][T11659] RDX: 0000000000000000 RSI: 00000000ffcddbde RDI: 0000000000000001 [ 132.188326][T11659] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 132.196280][T11659] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 132.204231][T11659] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 132.213490][T11659] Kernel Offset: 0x7600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 132.225019][T11659] Rebooting in 86400 seconds..