[ 84.620739][ T25] audit: type=1400 audit(1575133489.647:41): avc: denied { map } for pid=10183 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 '10.128.10.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 91.235477][ T25] audit: type=1400 audit(1575133496.257:42): avc: denied { map } for pid=10195 comm="syz-executor268" path="/root/syz-executor268780180" 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 [ 91.243566][T10195] tipc: Started in network mode [ 91.262745][ T25] audit: type=1400 audit(1575133496.267:43): avc: denied { create } for pid=10195 comm="syz-executor268" 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 [ 91.267943][T10195] tipc: Own node identity ff000000000000000000000000000001, cluster identity 4711 [ 91.293594][ T25] audit: type=1400 audit(1575133496.267:44): avc: denied { write } for pid=10195 comm="syz-executor268" 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 [ 91.303517][T10195] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor268/10195 [ 91.327679][ T25] audit: type=1400 audit(1575133496.267:45): avc: denied { read } for pid=10195 comm="syz-executor268" 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 [ 91.337019][T10195] caller is dst_cache_get+0x3d/0xb0 [ 91.337041][T10195] CPU: 1 PID: 10195 Comm: syz-executor268 Not tainted 5.4.0-syzkaller #0 [ 91.337055][T10195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.386095][T10195] Call Trace: [ 91.389400][T10195] dump_stack+0x197/0x210 [ 91.393814][T10195] debug_smp_processor_id.cold+0x87/0x97 [ 91.400667][T10195] dst_cache_get+0x3d/0xb0 [ 91.405068][T10195] tipc_udp_xmit.isra.0+0xc4/0xb80 [ 91.410170][T10195] ? lock_downgrade+0x920/0x920 [ 91.415038][T10195] ? tipc_udp_addr2str+0x170/0x170 [ 91.420161][T10195] ? __kasan_check_read+0x11/0x20 [ 91.425221][T10195] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 91.431510][T10195] ? tipc_crypto_xmit+0xb3e/0x2c70 [ 91.436619][T10195] ? bearer_get+0x16e/0x350 [ 91.441114][T10195] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 91.447265][T10195] ? rcu_read_lock_held+0x9c/0xb0 [ 91.452270][T10195] ? rcu_read_lock_held_common+0x130/0x130 [ 91.458065][T10195] tipc_udp_send_msg+0x3ea/0x490 [ 91.462988][T10195] tipc_bearer_xmit_skb+0x219/0x480 [ 91.468177][T10195] ? tipc_bearer_mtu+0x4e0/0x4e0 [ 91.473102][T10195] ? tipc_disc_create+0x71f/0xad0 [ 91.478123][T10195] tipc_enable_bearer+0xb18/0xd90 [ 91.483140][T10195] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 91.489027][T10195] ? tipc_bearer_xmit_skb+0x480/0x480 [ 91.494394][T10195] ? nla_memcpy+0xb0/0xb0 [ 91.498738][T10195] __tipc_nl_bearer_enable+0x2de/0x3a0 [ 91.504183][T10195] ? __tipc_nl_bearer_enable+0x2de/0x3a0 [ 91.509807][T10195] ? tipc_nl_bearer_disable+0x40/0x40 [ 91.515167][T10195] ? nla_memcpy+0xb0/0xb0 [ 91.519488][T10195] ? __nla_parse+0x43/0x60 [ 91.523896][T10195] tipc_nl_bearer_enable+0x23/0x40 [ 91.529002][T10195] genl_rcv_msg+0x67d/0xea0 [ 91.533498][T10195] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 91.539816][T10195] ? __kasan_check_read+0x11/0x20 [ 91.544821][T10195] ? __lock_acquire+0x8a0/0x4a00 [ 91.550643][T10195] ? find_held_lock+0x35/0x130 [ 91.555409][T10195] netlink_rcv_skb+0x177/0x450 [ 91.560431][T10195] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 91.566739][T10195] ? netlink_ack+0xb50/0xb50 [ 91.571322][T10195] ? __kasan_check_write+0x14/0x20 [ 91.576437][T10195] ? netlink_deliver_tap+0x24a/0xbe0 [ 91.581731][T10195] genl_rcv+0x29/0x40 [ 91.585699][T10195] netlink_unicast+0x58c/0x7d0 [ 91.590467][T10195] ? netlink_attachskb+0x870/0x870 [ 91.595760][T10195] ? _copy_from_iter_full+0x25d/0x8c0 [ 91.601180][T10195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.607439][T10195] netlink_sendmsg+0x8ee/0xe60 [ 91.612322][T10195] ? netlink_unicast+0x7d0/0x7d0 [ 91.617355][T10195] ? tomoyo_socket_sendmsg+0x26/0x30 [ 91.622640][T10195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.629041][T10195] ? security_socket_sendmsg+0x8d/0xc0 [ 91.634519][T10195] ? netlink_unicast+0x7d0/0x7d0 [ 91.639475][T10195] sock_sendmsg+0xd7/0x130 [ 91.643874][T10195] ____sys_sendmsg+0x753/0x880 [ 91.648654][T10195] ? kernel_sendmsg+0x50/0x50 [ 91.653353][T10195] ? debug_object_active_state+0x28a/0x350 [ 91.659353][T10195] ___sys_sendmsg+0x11d/0x1b0 [ 91.664025][T10195] ? do_recvmmsg+0x7a0/0x7a0 [ 91.668614][T10195] ? lockdep_hardirqs_on+0x421/0x5e0 [ 91.673892][T10195] ? __kasan_check_read+0x11/0x20 [ 91.678906][T10195] ? mark_lock+0xc2/0x1220 [ 91.683321][T10195] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 91.689124][T10195] ? __kasan_check_read+0x11/0x20 [ 91.694143][T10195] ? __lock_acquire+0x16f2/0x4a00 [ 91.699165][T10195] ? debug_object_deactivate+0x320/0x320 [ 91.704839][T10195] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 91.711058][T10195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.717317][T10195] ? __fget_light+0x1a9/0x230 [ 91.722064][T10195] ? __fdget+0x1b/0x20 [ 91.726258][T10195] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.733102][T10195] __sys_sendmsg+0x105/0x1d0 [ 91.737816][T10195] ? __sys_sendmsg_sock+0x1f0/0x1f0 [ 91.743031][T10195] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 91.749038][T10195] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.754507][T10195] ? do_syscall_64+0x26/0x790 [ 91.759177][T10195] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.765348][T10195] ? do_syscall_64+0x26/0x790 [ 91.770020][T10195] __x64_sys_sendmsg+0x78/0xb0 [ 91.774766][T10195] do_syscall_64+0xfa/0x790 [ 91.779257][T10195] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.785153][T10195] RIP: 0033:0x444359 [ 91.789030][T10195] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 91.808633][T10195] RSP: 002b:00007ffe2d726078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.817066][T10195] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444359 [ 91.825029][T10195] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 91.833040][T10195] RBP: 00000000006ce018 R08: 0000000000