audit: type=1400 audit(1599016504.676:8): avc: denied { execmem } for pid=6360 comm="syz-executor750" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 divide error: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 6362 Comm: syz-executor750 Not tainted 4.14.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809744c2c0 task.stack: ffff888097408000 RIP: 0010:fbcon_init+0xccc/0x1dd0 drivers/video/fbdev/core/fbcon.c:1116 RSP: 0018:ffff88809740f7d8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880a5a97780 RCX: 1ffff11014b52f27 RDX: 0000000000000000 RSI: ffff888097b08734 RDI: ffff8880a5a97938 RBP: ffff888097b08380 R08: ffff8880a5a97780 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a5844dc0 R13: ffff888097b086b4 R14: 0000000000000000 R15: 0000000000000013 FS: 0000000000e99880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004b4c53 CR3: 00000000854d8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: visual_init+0x332/0x5e0 drivers/tty/vt/vt.c:746 vc_allocate+0x2c5/0x640 drivers/tty/vt/vt.c:802 con_install+0x4d/0x450 drivers/tty/vt/vt.c:2898 tty_driver_install_tty drivers/tty/tty_io.c:1225 [inline] tty_init_dev.part.0+0x99/0x400 drivers/tty/tty_io.c:1338 tty_init_dev drivers/tty/tty_io.c:1328 [inline] tty_open_by_driver drivers/tty/tty_io.c:1973 [inline] tty_open+0x669/0x8b0 drivers/tty/tty_io.c:2021 chrdev_open+0x23c/0x6d0 fs/char_dev.c:423 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x401200 RSP: 002b:00007ffcef74e8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000401200 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffcef74e900 RBP: 000000000000a3d7 R08: 0000000000000000 R09: 000000000000000e R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000402220 R13: 00000000004022b0 R14: 0000000000000000 R15: 0000000000000000 Code: 24 38 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e ad 0d 00 00 8b 44 24 20 31 d2 48 8b 74 24 40 b5 b0 03 00 00 48 89 f2 48 c1 ea 03 89 44 24 20 48 b8 00 00 RIP: fbcon_init+0xccc/0x1dd0 drivers/video/fbdev/core/fbcon.c:1116 RSP: ffff88809740f7d8 ---[ end trace 5db6d7e39adc5dc2 ]---