audit: type=1400 audit(1581816105.297:36): avc: denied { map } for pid=7281 comm="syz-executor803" path="/root/syz-executor803234994" 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 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7281 Comm: syz-executor803 Not tainted 4.14.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888098848580 task.stack: ffff888086f88000 RIP: 0010:do_con_write.part.0+0x7d6/0x1b50 drivers/tty/vt/vt.c:2398 RSP: 0018:ffff888086f8f970 EFLAGS: 00010203 RAX: 0000000020000001 RBX: 000000010000000e RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880811631fd RBP: ffff888086f8fac0 R08: ffff888098848580 R09: 0000000000000000 R10: 0000000000000000 R11: ffff888098848580 R12: dffffc0000000000 R13: 000000000000074d R14: ffff88808116320c R15: ffff888081162e80 FS: 0000000001c8f880(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdac969d000 CR3: 00000000a0e7d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_con_write drivers/tty/vt/vt.c:2205 [inline] con_write+0x38/0xc0 drivers/tty/vt/vt.c:2787 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x38b/0xf20 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4403c9 RSP: 002b:00007ffe5abec248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403c9 RDX: 0000000000000002 RSI: 0000000020002b40 RDI: 0000000000000004 RBP: 00000000006ca018 R08: 000000000000000e R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401cb0 R13: 0000000000401d40 R14: 0000000000000000 R15: 0000000000000000 Code: 66 44 03 ad 30 ff ff ff e8 a8 ad 0b fe 48 8b 85 f0 fe ff ff 80 38 00 0f 85 97 11 00 00 49 8b 9f a0 03 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 20 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f RIP: do_con_write.part.0+0x7d6/0x1b50 drivers/tty/vt/vt.c:2398 RSP: ffff888086f8f970 ---[ end trace 235a20e1a4771896 ]---