audit: type=1400 audit(1581842708.442:36): avc: denied { map } for pid=8043 comm="syz-executor382" path="/root/syz-executor382609789" dev="sda1" ino=1426 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 CPU: 0 PID: 8043 Comm: syz-executor382 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:do_con_write.part.0+0xa03/0x1eb0 drivers/tty/vt/vt.c:2736 Code: 76 fe ff ff 41 01 dd e8 db df b4 fd 48 8b 85 a8 fe ff ff 80 38 00 0f 85 fe 12 00 00 49 8b 9e 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 85 RSP: 0018:ffff888091f278b0 EFLAGS: 00010203 RAX: 0000000020000001 RBX: 000000010000000e RCX: ffffffff83b64e48 RDX: 0000000000000000 RSI: ffffffff83b64e95 RDI: 0000000000000003 RBP: ffff888091f27a48 R08: ffff888094cbe080 R09: 0000000000000005 R10: ffffed1015d04732 R11: ffff8880ae823993 R12: dffffc0000000000 R13: 000000000000074d R14: ffff88809275d200 R15: ffff88809275d58c FS: 00000000020fb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f715cbd1000 CR3: 000000008bf92000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_con_write drivers/tty/vt/vt.c:2541 [inline] con_write+0x46/0xd0 drivers/tty/vt/vt.c:3110 process_output_block drivers/tty/n_tty.c:593 [inline] n_tty_write+0x3f9/0x1140 drivers/tty/n_tty.c:2331 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x458/0x7a0 drivers/tty/tty_io.c:1044 __vfs_write+0x114/0x810 fs/read_write.c:485 vfs_write+0x20c/0x560 fs/read_write.c:549 ksys_write+0x14f/0x2d0 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4403c9 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffdae205e08 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 Modules linked in: ---[ end trace aa9f5d2883296c77 ]--- RIP: 0010:do_con_write.part.0+0xa03/0x1eb0 drivers/tty/vt/vt.c:2736 Code: 76 fe ff ff 41 01 dd e8 db df b4 fd 48 8b 85 a8 fe ff ff 80 38 00 0f 85 fe 12 00 00 49 8b 9e 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 85 RSP: 0018:ffff888091f278b0 EFLAGS: 00010203 RAX: 0000000020000001 RBX: 000000010000000e RCX: ffffffff83b64e48 RDX: 0000000000000000 RSI: ffffffff83b64e95 RDI: 0000000000000003 RBP: ffff888091f27a48 R08: ffff888094cbe080 R09: 0000000000000005 R10: ffffed1015d04732 R11: ffff8880ae823993 R12: dffffc0000000000 R13: 000000000000074d R14: ffff88809275d200 R15: ffff88809275d58c FS: 00000000020fb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f715cbd1000 CR3: 000000008bf92000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400