Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 134.416848][ T32] kauditd_printk_skb: 4 callbacks suppressed [ 134.416895][ T32] audit: type=1800 audit(1582668118.487:39): pid=11853 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 [ 134.467107][ T32] audit: type=1800 audit(1582668118.517:40): pid=11853 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: [ 136.492942][ T32] audit: type=1400 audit(1582668120.567:41): avc: denied { map } for pid=12029 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 '10.128.0.125' (ECDSA) to the list of known hosts. [ 145.067441][ T32] audit: type=1400 audit(1582668129.137:42): avc: denied { map } for pid=12041 comm="syz-executor319" path="/root/syz-executor319192903" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 145.099393][T12042] IPVS: ftp: loaded support on port[0] = 21 executing program [ 145.172837][ T32] audit: type=1400 audit(1582668129.247:43): avc: denied { create } for pid=12042 comm="syz-executor319" 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 [ 145.180529][T12042] ===================================================== [ 145.197871][ T32] audit: type=1400 audit(1582668129.247:44): avc: denied { write } for pid=12042 comm="syz-executor319" 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 [ 145.204685][T12042] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 145.204712][T12042] CPU: 1 PID: 12042 Comm: syz-executor319 Not tainted 5.6.0-rc2-syzkaller #0 [ 145.204720][T12042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 145.204730][T12042] Call Trace: [ 145.204768][T12042] dump_stack+0x1c9/0x220 [ 145.204850][T12042] kmsan_report+0xf7/0x1e0 [ 145.229784][ T32] audit: type=1400 audit(1582668129.247:45): avc: denied { read } for pid=12042 comm="syz-executor319" 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 [ 145.237422][T12042] __msan_warning+0x58/0xa0 [ 145.237444][T12042] ethnl_update_bitset32+0x2c85/0x3860 [ 145.237477][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.237524][T12042] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 145.315497][T12042] ? kmsan_memcpy_metadata+0xb/0x10 [ 145.320729][T12042] ? __msan_memcpy+0x43/0x50 [ 145.325321][T12042] ethnl_update_bitset+0x11c/0x130 [ 145.330438][T12042] ethnl_set_linkmodes+0x9f9/0x1430 [ 145.335652][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.340848][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.347222][T12042] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 145.352596][T12042] genl_rcv_msg+0x205e/0x2460 [ 145.357299][T12042] netlink_rcv_skb+0x451/0x650 [ 145.362103][T12042] ? genl_unbind+0x380/0x380 [ 145.366837][T12042] genl_rcv+0x63/0x80 [ 145.370819][T12042] netlink_unicast+0xf9e/0x1100 [ 145.375805][T12042] ? genl_pernet_exit+0x90/0x90 [ 145.380695][T12042] netlink_sendmsg+0x1246/0x14d0 [ 145.385843][T12042] ? netlink_getsockopt+0x1440/0x1440 [ 145.391229][T12042] ____sys_sendmsg+0x12b6/0x1350 [ 145.396193][T12042] __sys_sendmsg+0x451/0x5f0 [ 145.400942][T12042] ? __fpregs_load_activate+0x38c/0x3c0 [ 145.406490][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.414422][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.420235][T12042] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 145.426325][T12042] ? prepare_exit_to_usermode+0x1ca/0x520 [ 145.432037][T12042] ? kmsan_get_metadata+0x4f/0x180 [ 145.437131][T12042] ? kmsan_get_metadata+0x4f/0x180 [ 145.442318][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.448844][T12042] __ia32_compat_sys_sendmsg+0xed/0x130 [ 145.454384][T12042] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 145.459910][T12042] do_fast_syscall_32+0x3c7/0x6e0 [ 145.465054][T12042] entry_SYSENTER_compat+0x68/0x77 [ 145.470209][T12042] RIP: 0023:0xf7f85d99 [ 145.474291][T12042] 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 [ 145.494883][T12042] RSP: 002b:00000000ffeeda6c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 145.503287][T12042] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 145.511349][T12042] RDX: 0000000000000000 RSI: 00000000ffeedade RDI: 0000000000000001 [ 145.519317][T12042] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 145.527279][T12042] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 145.535250][T12042] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 145.543260][T12042] [ 145.545612][T12042] Uninit was created at: [ 145.549895][T12042] kmsan_internal_poison_shadow+0x66/0xd0 [ 145.555617][T12042] kmsan_slab_alloc+0x8a/0xe0 [ 145.560297][T12042] __kmalloc_node_track_caller+0xb40/0x1200 [ 145.566372][T12042] __alloc_skb+0x2fd/0xac0 [ 145.570773][T12042] netlink_sendmsg+0x7d3/0x14d0 [ 145.575702][T12042] ____sys_sendmsg+0x12b6/0x1350 [ 145.580640][T12042] __sys_sendmsg+0x451/0x5f0 [ 145.585249][T12042] __ia32_compat_sys_sendmsg+0xed/0x130 [ 145.590833][T12042] do_fast_syscall_32+0x3c7/0x6e0 [ 145.595905][T12042] entry_SYSENTER_compat+0x68/0x77 [ 145.600998][T12042] ===================================================== [ 145.607909][T12042] Disabling lock debugging due to kernel taint [ 145.614047][T12042] Kernel panic - not syncing: panic_on_warn set ... [ 145.620643][T12042] CPU: 1 PID: 12042 Comm: syz-executor319 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 145.630776][T12042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 145.640853][T12042] Call Trace: [ 145.644157][T12042] dump_stack+0x1c9/0x220 [ 145.648530][T12042] panic+0x3d5/0xc3e [ 145.652461][T12042] kmsan_report+0x1df/0x1e0 [ 145.656965][T12042] __msan_warning+0x58/0xa0 [ 145.661461][T12042] ethnl_update_bitset32+0x2c85/0x3860 [ 145.666979][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.672194][T12042] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 145.678357][T12042] ? kmsan_memcpy_metadata+0xb/0x10 [ 145.683556][T12042] ? __msan_memcpy+0x43/0x50 [ 145.688145][T12042] ethnl_update_bitset+0x11c/0x130 [ 145.693261][T12042] ethnl_set_linkmodes+0x9f9/0x1430 [ 145.698526][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.703717][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.709523][T12042] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 145.714945][T12042] genl_rcv_msg+0x205e/0x2460 [ 145.720599][T12042] netlink_rcv_skb+0x451/0x650 [ 145.725366][T12042] ? genl_unbind+0x380/0x380 [ 145.729958][T12042] genl_rcv+0x63/0x80 [ 145.733944][T12042] netlink_unicast+0xf9e/0x1100 [ 145.738791][T12042] ? genl_pernet_exit+0x90/0x90 [ 145.743678][T12042] netlink_sendmsg+0x1246/0x14d0 [ 145.748625][T12042] ? netlink_getsockopt+0x1440/0x1440 [ 145.754126][T12042] ____sys_sendmsg+0x12b6/0x1350 [ 145.759250][T12042] __sys_sendmsg+0x451/0x5f0 [ 145.765848][T12042] ? __fpregs_load_activate+0x38c/0x3c0 [ 145.771401][T12042] ? kmsan_get_metadata+0x11d/0x180 [ 145.776589][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.782431][T12042] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 145.788501][T12042] ? prepare_exit_to_usermode+0x1ca/0x520 [ 145.794213][T12042] ? kmsan_get_metadata+0x4f/0x180 [ 145.799321][T12042] ? kmsan_get_metadata+0x4f/0x180 [ 145.804425][T12042] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 145.810341][T12042] __ia32_compat_sys_sendmsg+0xed/0x130 [ 145.815980][T12042] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 145.821510][T12042] do_fast_syscall_32+0x3c7/0x6e0 [ 145.826543][T12042] entry_SYSENTER_compat+0x68/0x77 [ 145.831645][T12042] RIP: 0023:0xf7f85d99 [ 145.835699][T12042] 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 [ 145.855292][T12042] RSP: 002b:00000000ffeeda6c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 145.863690][T12042] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 145.871717][T12042] RDX: 0000000000000000 RSI: 00000000ffeedade RDI: 0000000000000001 [ 145.879716][T12042] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 145.887695][T12042] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 145.895702][T12042] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 145.905316][T12042] Kernel Offset: 0x13000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 145.917012][T12042] Rebooting in 86400 seconds..