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. [ 119.502306][ T33] kauditd_printk_skb: 6 callbacks suppressed [ 119.502355][ T33] audit: type=1400 audit(1583242862.569:41): avc: denied { map } for pid=12502 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 [ 119.563617][T12500] sshd (12500) used greatest stack depth: 3352 bytes left Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts. syzkaller login: [ 127.771079][ T33] audit: type=1400 audit(1583242870.829:42): avc: denied { map } for pid=12514 comm="syz-executor817" path="/root/syz-executor817444222" 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 [ 127.808581][T12515] IPVS: ftp: loaded support on port[0] = 21 executing program [ 127.869409][ T33] audit: type=1400 audit(1583242870.929:43): avc: denied { create } for pid=12515 comm="syz-executor817" 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 [ 127.876177][T12515] ===================================================== [ 127.894341][ T33] audit: type=1400 audit(1583242870.939:44): avc: denied { write } for pid=12515 comm="syz-executor817" 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 [ 127.901151][T12515] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 127.925964][ T33] audit: type=1400 audit(1583242870.939:45): avc: denied { read } for pid=12515 comm="syz-executor817" 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 [ 127.933538][T12515] CPU: 1 PID: 12515 Comm: syz-executor817 Not tainted 5.6.0-rc2-syzkaller #0 [ 127.933545][T12515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 127.933550][T12515] Call Trace: [ 127.933567][T12515] dump_stack+0x1c9/0x220 [ 127.933611][T12515] kmsan_report+0xf7/0x1e0 [ 127.988854][T12515] __msan_warning+0x58/0xa0 [ 127.993330][T12515] ethnl_update_bitset32+0x2c85/0x3860 [ 127.998769][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.003943][T12515] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 128.010071][T12515] ? kmsan_memcpy_metadata+0xb/0x10 [ 128.015241][T12515] ? __msan_memcpy+0x43/0x50 [ 128.019813][T12515] ethnl_update_bitset+0x11c/0x130 [ 128.024904][T12515] ethnl_set_linkmodes+0x9f9/0x1430 [ 128.030087][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.035268][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.041048][T12515] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 128.046392][T12515] genl_rcv_msg+0x205e/0x2460 [ 128.051059][T12515] netlink_rcv_skb+0x451/0x650 [ 128.055794][T12515] ? genl_unbind+0x380/0x380 [ 128.060368][T12515] genl_rcv+0x63/0x80 [ 128.064343][T12515] netlink_unicast+0xf9e/0x1100 [ 128.069180][T12515] ? genl_pernet_exit+0x90/0x90 [ 128.074039][T12515] netlink_sendmsg+0x1246/0x14d0 [ 128.078959][T12515] ? netlink_getsockopt+0x1440/0x1440 [ 128.084304][T12515] ____sys_sendmsg+0x12b6/0x1350 [ 128.089270][T12515] __sys_sendmsg+0x451/0x5f0 [ 128.093843][T12515] ? __fpregs_load_activate+0x38c/0x3c0 [ 128.099453][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.104635][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.110415][T12515] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 128.116450][T12515] ? prepare_exit_to_usermode+0x1ca/0x520 [ 128.122141][T12515] ? kmsan_get_metadata+0x4f/0x180 [ 128.127236][T12515] ? kmsan_get_metadata+0x4f/0x180 [ 128.132325][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.138103][T12515] __ia32_compat_sys_sendmsg+0xed/0x130 [ 128.143621][T12515] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 128.149135][T12515] do_fast_syscall_32+0x3c7/0x6e0 [ 128.154137][T12515] entry_SYSENTER_compat+0x68/0x77 [ 128.159237][T12515] RIP: 0023:0xf7f8dd99 [ 128.163280][T12515] 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 [ 128.182853][T12515] RSP: 002b:00000000ff80bd4c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 128.191234][T12515] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 128.199186][T12515] RDX: 0000000000000000 RSI: 00000000ff80bdbe RDI: 0000000000000001 [ 128.207128][T12515] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 128.215075][T12515] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 128.223049][T12515] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 128.231006][T12515] [ 128.233313][T12515] Uninit was created at: [ 128.237538][T12515] kmsan_internal_poison_shadow+0x66/0xd0 [ 128.243238][T12515] kmsan_slab_alloc+0x8a/0xe0 [ 128.248223][T12515] __kmalloc_node_track_caller+0xb40/0x1200 [ 128.254090][T12515] __alloc_skb+0x2fd/0xac0 [ 128.258481][T12515] netlink_sendmsg+0x7d3/0x14d0 [ 128.263304][T12515] ____sys_sendmsg+0x12b6/0x1350 [ 128.268213][T12515] __sys_sendmsg+0x451/0x5f0 [ 128.272781][T12515] __ia32_compat_sys_sendmsg+0xed/0x130 [ 128.278298][T12515] do_fast_syscall_32+0x3c7/0x6e0 [ 128.283295][T12515] entry_SYSENTER_compat+0x68/0x77 [ 128.288376][T12515] ===================================================== [ 128.295298][T12515] Disabling lock debugging due to kernel taint [ 128.301418][T12515] Kernel panic - not syncing: panic_on_warn set ... [ 128.307975][T12515] CPU: 1 PID: 12515 Comm: syz-executor817 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 128.318091][T12515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 128.328118][T12515] Call Trace: [ 128.331382][T12515] dump_stack+0x1c9/0x220 [ 128.335686][T12515] panic+0x3d5/0xc3e [ 128.339570][T12515] kmsan_report+0x1df/0x1e0 [ 128.344050][T12515] __msan_warning+0x58/0xa0 [ 128.348523][T12515] ethnl_update_bitset32+0x2c85/0x3860 [ 128.353960][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.359135][T12515] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 128.365272][T12515] ? kmsan_memcpy_metadata+0xb/0x10 [ 128.370439][T12515] ? __msan_memcpy+0x43/0x50 [ 128.375003][T12515] ethnl_update_bitset+0x11c/0x130 [ 128.380098][T12515] ethnl_set_linkmodes+0x9f9/0x1430 [ 128.385297][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.390484][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.396273][T12515] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 128.401627][T12515] genl_rcv_msg+0x205e/0x2460 [ 128.406310][T12515] netlink_rcv_skb+0x451/0x650 [ 128.411048][T12515] ? genl_unbind+0x380/0x380 [ 128.415623][T12515] genl_rcv+0x63/0x80 [ 128.419594][T12515] netlink_unicast+0xf9e/0x1100 [ 128.424424][T12515] ? genl_pernet_exit+0x90/0x90 [ 128.429254][T12515] netlink_sendmsg+0x1246/0x14d0 [ 128.434193][T12515] ? netlink_getsockopt+0x1440/0x1440 [ 128.439566][T12515] ____sys_sendmsg+0x12b6/0x1350 [ 128.444819][T12515] __sys_sendmsg+0x451/0x5f0 [ 128.449397][T12515] ? __fpregs_load_activate+0x38c/0x3c0 [ 128.454925][T12515] ? kmsan_get_metadata+0x11d/0x180 [ 128.460098][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.465890][T12515] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 128.472546][T12515] ? prepare_exit_to_usermode+0x1ca/0x520 [ 128.478246][T12515] ? kmsan_get_metadata+0x4f/0x180 [ 128.483387][T12515] ? kmsan_get_metadata+0x4f/0x180 [ 128.488488][T12515] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 128.494280][T12515] __ia32_compat_sys_sendmsg+0xed/0x130 [ 128.499810][T12515] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 128.505336][T12515] do_fast_syscall_32+0x3c7/0x6e0 [ 128.510348][T12515] entry_SYSENTER_compat+0x68/0x77 [ 128.515433][T12515] RIP: 0023:0xf7f8dd99 [ 128.519477][T12515] 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 [ 128.539203][T12515] RSP: 002b:00000000ff80bd4c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 128.547592][T12515] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 128.555543][T12515] RDX: 0000000000000000 RSI: 00000000ff80bdbe RDI: 0000000000000001 [ 128.563492][T12515] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 128.571438][T12515] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 128.579386][T12515] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 128.588557][T12515] Kernel Offset: 0x24200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 128.600166][T12515] Rebooting in 86400 seconds..