[....] 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. [ 121.636074][ T32] kauditd_printk_skb: 4 callbacks suppressed [ 121.636140][ T32] audit: type=1800 audit(1582398177.691:39): pid=11533 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 [ 121.664649][ T32] audit: type=1800 audit(1582398177.701:40): pid=11533 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: [ 123.073224][ T32] audit: type=1400 audit(1582398179.131:41): avc: denied { map } for pid=11708 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 '10.128.0.137' (ECDSA) to the list of known hosts. [ 131.476283][ T32] audit: type=1400 audit(1582398187.531:42): avc: denied { map } for pid=11720 comm="syz-executor303" path="/root/syz-executor303600761" 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 [ 131.515336][T11721] IPVS: ftp: loaded support on port[0] = 21 executing program [ 131.581924][ T32] audit: type=1400 audit(1582398187.631:43): avc: denied { create } for pid=11721 comm="syz-executor303" 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 [ 131.590623][T11721] ===================================================== [ 131.607349][ T32] audit: type=1400 audit(1582398187.631:44): avc: denied { write } for pid=11721 comm="syz-executor303" 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 [ 131.613687][T11721] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 131.613703][T11721] CPU: 1 PID: 11721 Comm: syz-executor303 Not tainted 5.6.0-rc2-syzkaller #0 [ 131.613710][T11721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.613715][T11721] Call Trace: [ 131.613737][T11721] dump_stack+0x1c9/0x220 [ 131.613763][T11721] kmsan_report+0xf7/0x1e0 [ 131.613788][T11721] __msan_warning+0x58/0xa0 [ 131.613840][T11721] ethnl_update_bitset32+0x2c85/0x3860 [ 131.638684][ T32] audit: type=1400 audit(1582398187.631:45): avc: denied { read } for pid=11721 comm="syz-executor303" 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 [ 131.646276][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 131.646302][T11721] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 131.646351][T11721] ? kmsan_memcpy_metadata+0xb/0x10 [ 131.728145][T11721] ? __msan_memcpy+0x43/0x50 [ 131.732719][T11721] ethnl_update_bitset+0x11c/0x130 [ 131.737821][T11721] ethnl_set_linkmodes+0x9f9/0x1430 [ 131.743118][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 131.748313][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.754110][T11721] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 131.759478][T11721] genl_rcv_msg+0x205e/0x2460 [ 131.764166][T11721] netlink_rcv_skb+0x451/0x650 [ 131.768911][T11721] ? genl_unbind+0x380/0x380 [ 131.773494][T11721] genl_rcv+0x63/0x80 [ 131.777468][T11721] netlink_unicast+0xf9e/0x1100 [ 131.782309][T11721] ? genl_pernet_exit+0x90/0x90 [ 131.787151][T11721] netlink_sendmsg+0x1246/0x14d0 [ 131.792096][T11721] ? netlink_getsockopt+0x1440/0x1440 [ 131.797455][T11721] ____sys_sendmsg+0x12b6/0x1350 [ 131.802445][T11721] __sys_sendmsg+0x451/0x5f0 [ 131.807035][T11721] ? __fpregs_load_activate+0x38c/0x3c0 [ 131.812588][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 131.817828][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.823627][T11721] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 131.829685][T11721] ? prepare_exit_to_usermode+0x1ca/0x520 [ 131.835421][T11721] ? kmsan_get_metadata+0x4f/0x180 [ 131.840526][T11721] ? kmsan_get_metadata+0x4f/0x180 [ 131.845627][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 131.851431][T11721] __ia32_compat_sys_sendmsg+0xed/0x130 [ 131.856966][T11721] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 131.862504][T11721] do_fast_syscall_32+0x3c7/0x6e0 [ 131.867540][T11721] entry_SYSENTER_compat+0x68/0x77 [ 131.872638][T11721] RIP: 0023:0xf7f77d99 [ 131.876693][T11721] 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 [ 131.896282][T11721] RSP: 002b:00000000ffa4a7ec EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 131.904671][T11721] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 131.912707][T11721] RDX: 0000000000000000 RSI: 00000000ffa4a85e RDI: 0000000000000001 [ 131.920659][T11721] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 131.928618][T11721] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 131.936575][T11721] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 131.944540][T11721] [ 131.946849][T11721] Uninit was created at: [ 131.951071][T11721] kmsan_internal_poison_shadow+0x66/0xd0 [ 131.956777][T11721] kmsan_slab_alloc+0x8a/0xe0 [ 131.961435][T11721] __kmalloc_node_track_caller+0xb40/0x1200 [ 131.967319][T11721] __alloc_skb+0x2fd/0xac0 [ 131.971723][T11721] netlink_sendmsg+0x7d3/0x14d0 [ 131.976557][T11721] ____sys_sendmsg+0x12b6/0x1350 [ 131.981471][T11721] __sys_sendmsg+0x451/0x5f0 [ 131.986045][T11721] __ia32_compat_sys_sendmsg+0xed/0x130 [ 131.991573][T11721] do_fast_syscall_32+0x3c7/0x6e0 [ 131.996622][T11721] entry_SYSENTER_compat+0x68/0x77 [ 132.001737][T11721] ===================================================== [ 132.008646][T11721] Disabling lock debugging due to kernel taint [ 132.014811][T11721] Kernel panic - not syncing: panic_on_warn set ... [ 132.021378][T11721] CPU: 1 PID: 11721 Comm: syz-executor303 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 132.031497][T11721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.041528][T11721] Call Trace: [ 132.044800][T11721] dump_stack+0x1c9/0x220 [ 132.049114][T11721] panic+0x3d5/0xc3e [ 132.053008][T11721] kmsan_report+0x1df/0x1e0 [ 132.057495][T11721] __msan_warning+0x58/0xa0 [ 132.061979][T11721] ethnl_update_bitset32+0x2c85/0x3860 [ 132.067429][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 132.072626][T11721] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 132.078790][T11721] ? kmsan_memcpy_metadata+0xb/0x10 [ 132.083971][T11721] ? __msan_memcpy+0x43/0x50 [ 132.088547][T11721] ethnl_update_bitset+0x11c/0x130 [ 132.093645][T11721] ethnl_set_linkmodes+0x9f9/0x1430 [ 132.098838][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 132.104026][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.109884][T11721] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 132.115252][T11721] genl_rcv_msg+0x205e/0x2460 [ 132.119939][T11721] netlink_rcv_skb+0x451/0x650 [ 132.124696][T11721] ? genl_unbind+0x380/0x380 [ 132.129279][T11721] genl_rcv+0x63/0x80 [ 132.133249][T11721] netlink_unicast+0xf9e/0x1100 [ 132.138088][T11721] ? genl_pernet_exit+0x90/0x90 [ 132.142989][T11721] netlink_sendmsg+0x1246/0x14d0 [ 132.147930][T11721] ? netlink_getsockopt+0x1440/0x1440 [ 132.153287][T11721] ____sys_sendmsg+0x12b6/0x1350 [ 132.158259][T11721] __sys_sendmsg+0x451/0x5f0 [ 132.162859][T11721] ? __fpregs_load_activate+0x38c/0x3c0 [ 132.168391][T11721] ? kmsan_get_metadata+0x11d/0x180 [ 132.173574][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.179360][T11721] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 132.185409][T11721] ? prepare_exit_to_usermode+0x1ca/0x520 [ 132.191111][T11721] ? kmsan_get_metadata+0x4f/0x180 [ 132.196321][T11721] ? kmsan_get_metadata+0x4f/0x180 [ 132.201415][T11721] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 132.207207][T11721] __ia32_compat_sys_sendmsg+0xed/0x130 [ 132.212739][T11721] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 132.218307][T11721] do_fast_syscall_32+0x3c7/0x6e0 [ 132.223326][T11721] entry_SYSENTER_compat+0x68/0x77 [ 132.228413][T11721] RIP: 0023:0xf7f77d99 [ 132.232463][T11721] 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 [ 132.252061][T11721] RSP: 002b:00000000ffa4a7ec EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 132.260451][T11721] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 132.268404][T11721] RDX: 0000000000000000 RSI: 00000000ffa4a85e RDI: 0000000000000001 [ 132.276354][T11721] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 132.284306][T11721] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 132.292256][T11721] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 132.301564][T11721] Kernel Offset: 0x28400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 132.313183][T11721] Rebooting in 86400 seconds..