Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.273997] audit: type=1400 audit(1601833665.461:8): avc: denied { execmem } for pid=6502 comm="syz-executor189" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 41.303396] IPVS: ftp: loaded support on port[0] = 21 [ 41.342824] ================================================================================ [ 41.354981] UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62 [ 41.364409] load of value 156 is not a valid value for type '_Bool' [ 41.372469] CPU: 0 PID: 6503 Comm: syz-executor189 Not tainted 4.19.149-syzkaller #0 [ 41.380956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.390838] Call Trace: [ 41.393495] dump_stack+0x22c/0x33e [ 41.397528] ubsan_epilogue+0xe/0x3a [ 41.401251] __ubsan_handle_load_invalid_value.cold+0x63/0x6f [ 41.407419] ? __lockdep_init_map+0x100/0x5c0 [ 41.412280] vhost_vq_reset.constprop.0.cold+0x15/0x1a [ 41.417894] vhost_dev_init+0x442/0x780 [ 41.421862] vhost_net_open+0x54c/0x730 [ 41.426542] ? vhost_zerocopy_signal_used+0x3d0/0x3d0 [ 41.431823] misc_open+0x372/0x4a0 [ 41.435721] ? misc_devnode+0x120/0x120 [ 41.441142] chrdev_open+0x266/0x770 [ 41.446027] ? __register_chrdev+0x400/0x400 [ 41.451774] do_dentry_open+0x4aa/0x1160 [ 41.458993] ? __register_chrdev+0x400/0x400 [ 41.464532] ? security_inode_permission+0xc5/0xf0 [ 41.469707] ? chmod_common+0x3f0/0x3f0 [ 41.474038] ? inode_permission+0x10c/0x540 [ 41.479291] ? unlazy_walk+0x1f6/0x520 [ 41.483886] path_openat+0x7d5/0x2e90 [ 41.489281] ? path_lookupat+0x8d0/0x8d0 [ 41.493989] ? mark_held_locks+0xf0/0xf0 [ 41.499488] do_filp_open+0x18c/0x3f0 [ 41.504088] ? may_open_dev+0xf0/0xf0 [ 41.508747] ? lock_downgrade+0x750/0x750 [ 41.513646] ? lock_acquire+0x170/0x3f0 [ 41.518845] ? do_raw_spin_unlock+0x171/0x240 [ 41.524084] ? _raw_spin_unlock+0x29/0x40 [ 41.529936] ? __alloc_fd+0x2ab/0x590 [ 41.535109] do_sys_open+0x3b3/0x520 [ 41.542360] ? filp_open+0x70/0x70 [ 41.551044] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.564126] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.570822] ? do_syscall_64+0x21/0x670 [ 41.577121] do_syscall_64+0xf9/0x670 [ 41.581608] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.587964] RIP: 0033:0x440b29 [ 41.592436] 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 fb 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.622804] RSP: 002b:00007ffeabb2d1b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 41.636898] RAX: ffffffffffffffda RBX: 00000000004a2330 RCX: 0000000000440b29 [ 41.649280] RDX: 0000000000000002 RSI: 0000000020000100 RDI: ffffffffffffff9c [ 41.661311] RBP: 00007ffeabb2d1c0 R08: 0000000120080522 R09: 0000000120080522 [ 41.672162] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004a2330 [ 41.682278] R13: 0000000000402040 R14: 0000000000000000 R15: 0000000000000000 [ 41.692329] ==================