[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 123.600467][ T32] kauditd_printk_skb: 4 callbacks suppressed [ 123.600512][ T32] audit: type=1800 audit(1582661551.660:39): pid=11438 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 [ 123.634254][ T32] audit: type=1800 audit(1582661551.690:40): pid=11438 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 [ 124.312597][ T32] audit: type=1400 audit(1582661552.370:41): avc: denied { map } for pid=11600 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.246' (ECDSA) to the list of known hosts. syzkaller login: [ 132.959083][ T32] audit: type=1400 audit(1582661561.020:42): avc: denied { map } for pid=11626 comm="syz-executor944" path="/root/syz-executor944612915" 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 [ 132.989293][T11627] IPVS: ftp: loaded support on port[0] = 21 executing program [ 133.057783][ T32] audit: type=1400 audit(1582661561.120:43): avc: denied { create } for pid=11627 comm="syz-executor944" 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 [ 133.065443][T11627] ===================================================== [ 133.082827][ T32] audit: type=1400 audit(1582661561.130:44): avc: denied { write } for pid=11627 comm="syz-executor944" 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 [ 133.089561][T11627] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 133.089577][T11627] CPU: 0 PID: 11627 Comm: syz-executor944 Not tainted 5.6.0-rc2-syzkaller #0 [ 133.089590][T11627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.089596][T11627] Call Trace: [ 133.089623][T11627] dump_stack+0x1c9/0x220 [ 133.089656][T11627] kmsan_report+0xf7/0x1e0 [ 133.089707][T11627] __msan_warning+0x58/0xa0 [ 133.114466][ T32] audit: type=1400 audit(1582661561.130:45): avc: denied { read } for pid=11627 comm="syz-executor944" 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 [ 133.122159][T11627] ethnl_update_bitset32+0x2c85/0x3860 [ 133.188320][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.193508][T11627] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 133.199650][T11627] ? kmsan_memcpy_metadata+0xb/0x10 [ 133.204858][T11627] ? __msan_memcpy+0x43/0x50 [ 133.209440][T11627] ethnl_update_bitset+0x11c/0x130 [ 133.214560][T11627] ethnl_set_linkmodes+0x9f9/0x1430 [ 133.219759][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.225066][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.230864][T11627] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 133.236218][T11627] genl_rcv_msg+0x205e/0x2460 [ 133.240901][T11627] netlink_rcv_skb+0x451/0x650 [ 133.245646][T11627] ? genl_unbind+0x380/0x380 [ 133.250351][T11627] genl_rcv+0x63/0x80 [ 133.254336][T11627] netlink_unicast+0xf9e/0x1100 [ 133.259174][T11627] ? genl_pernet_exit+0x90/0x90 [ 133.264012][T11627] netlink_sendmsg+0x1246/0x14d0 [ 133.268941][T11627] ? netlink_getsockopt+0x1440/0x1440 [ 133.274291][T11627] ____sys_sendmsg+0x12b6/0x1350 [ 133.279227][T11627] __sys_sendmsg+0x451/0x5f0 [ 133.283808][T11627] ? __fpregs_load_activate+0x38c/0x3c0 [ 133.289335][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.294528][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.300346][T11627] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 133.306426][T11627] ? prepare_exit_to_usermode+0x1ca/0x520 [ 133.312131][T11627] ? kmsan_get_metadata+0x4f/0x180 [ 133.317226][T11627] ? kmsan_get_metadata+0x4f/0x180 [ 133.322321][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.328110][T11627] __ia32_compat_sys_sendmsg+0xed/0x130 [ 133.333659][T11627] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 133.339184][T11627] do_fast_syscall_32+0x3c7/0x6e0 [ 133.344194][T11627] entry_SYSENTER_compat+0x68/0x77 [ 133.349283][T11627] RIP: 0023:0xf7fa5d99 [ 133.353336][T11627] 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 [ 133.372943][T11627] RSP: 002b:00000000ffcae15c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 133.381331][T11627] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 133.389282][T11627] RDX: 0000000000000000 RSI: 00000000ffcae1ce RDI: 0000000000000001 [ 133.397250][T11627] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 133.405212][T11627] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 133.413205][T11627] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 133.421236][T11627] [ 133.423549][T11627] Uninit was created at: [ 133.427806][T11627] kmsan_internal_poison_shadow+0x66/0xd0 [ 133.433556][T11627] kmsan_slab_alloc+0x8a/0xe0 [ 133.438230][T11627] __kmalloc_node_track_caller+0xb40/0x1200 [ 133.444100][T11627] __alloc_skb+0x2fd/0xac0 [ 133.448493][T11627] netlink_sendmsg+0x7d3/0x14d0 [ 133.453320][T11627] ____sys_sendmsg+0x12b6/0x1350 [ 133.458585][T11627] __sys_sendmsg+0x451/0x5f0 [ 133.463161][T11627] __ia32_compat_sys_sendmsg+0xed/0x130 [ 133.468696][T11627] do_fast_syscall_32+0x3c7/0x6e0 [ 133.473699][T11627] entry_SYSENTER_compat+0x68/0x77 [ 133.478791][T11627] ===================================================== [ 133.485705][T11627] Disabling lock debugging due to kernel taint [ 133.491834][T11627] Kernel panic - not syncing: panic_on_warn set ... [ 133.498419][T11627] CPU: 0 PID: 11627 Comm: syz-executor944 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 133.508538][T11627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.518582][T11627] Call Trace: [ 133.521856][T11627] dump_stack+0x1c9/0x220 [ 133.526175][T11627] panic+0x3d5/0xc3e [ 133.530068][T11627] kmsan_report+0x1df/0x1e0 [ 133.534573][T11627] __msan_warning+0x58/0xa0 [ 133.539087][T11627] ethnl_update_bitset32+0x2c85/0x3860 [ 133.544553][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.549752][T11627] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 133.555914][T11627] ? kmsan_memcpy_metadata+0xb/0x10 [ 133.561091][T11627] ? __msan_memcpy+0x43/0x50 [ 133.565676][T11627] ethnl_update_bitset+0x11c/0x130 [ 133.570793][T11627] ethnl_set_linkmodes+0x9f9/0x1430 [ 133.575989][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.581178][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.586965][T11627] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 133.592315][T11627] genl_rcv_msg+0x205e/0x2460 [ 133.597015][T11627] netlink_rcv_skb+0x451/0x650 [ 133.601786][T11627] ? genl_unbind+0x380/0x380 [ 133.606434][T11627] genl_rcv+0x63/0x80 [ 133.610430][T11627] netlink_unicast+0xf9e/0x1100 [ 133.615277][T11627] ? genl_pernet_exit+0x90/0x90 [ 133.620119][T11627] netlink_sendmsg+0x1246/0x14d0 [ 133.625053][T11627] ? netlink_getsockopt+0x1440/0x1440 [ 133.630490][T11627] ____sys_sendmsg+0x12b6/0x1350 [ 133.635423][T11627] __sys_sendmsg+0x451/0x5f0 [ 133.640006][T11627] ? __fpregs_load_activate+0x38c/0x3c0 [ 133.645532][T11627] ? kmsan_get_metadata+0x11d/0x180 [ 133.650710][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.656497][T11627] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 133.662544][T11627] ? prepare_exit_to_usermode+0x1ca/0x520 [ 133.668258][T11627] ? kmsan_get_metadata+0x4f/0x180 [ 133.673364][T11627] ? kmsan_get_metadata+0x4f/0x180 [ 133.678463][T11627] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 133.684259][T11627] __ia32_compat_sys_sendmsg+0xed/0x130 [ 133.689786][T11627] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 133.695311][T11627] do_fast_syscall_32+0x3c7/0x6e0 [ 133.700323][T11627] entry_SYSENTER_compat+0x68/0x77 [ 133.705411][T11627] RIP: 0023:0xf7fa5d99 [ 133.709467][T11627] 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 [ 133.729069][T11627] RSP: 002b:00000000ffcae15c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 133.737470][T11627] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 133.745425][T11627] RDX: 0000000000000000 RSI: 00000000ffcae1ce RDI: 0000000000000001 [ 133.753391][T11627] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 133.761353][T11627] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 133.769318][T11627] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 133.778676][T11627] Kernel Offset: 0x24e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 133.790313][T11627] Rebooting in 86400 seconds..