general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x0000000100000008-0x000000010000000f] CPU: 0 PID: 3761 Comm: syz-executor.1 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:do_con_write+0x979/0x7400 drivers/tty/vt/vt.c:2786 Code: a4 24 ca 00 00 00 44 01 e5 e8 b3 eb 85 fd 48 8b 44 24 50 80 38 00 0f 85 28 27 00 00 4d 8b a6 f0 03 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 14 18 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 13 RSP: 0018:ffffc90005fef838 EFLAGS: 00010203 RAX: 0000000020000001 RBX: dffffc0000000000 RCX: ffffc90004139000 RDX: 0000000000040000 RSI: ffffffff83edd0dd RDI: 0000000000000003 RBP: 00000000000007fe R08: ffffffff83eccd60 R09: ffff888020c6ad08 R10: 0000000000000000 R11: 0000000000000000 R12: 000000010000000e R13: 0000000000000000 R14: ffff888088696000 R15: ffff8880886963dc FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f5daab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000005ecc0000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: con_write+0x22/0xb0 drivers/tty/vt/vt.c:3159 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x3ce/0xf80 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x4d9/0x870 drivers/tty/tty_io.c:1046 do_loop_readv_writev fs/read_write.c:737 [inline] do_loop_readv_writev fs/read_write.c:721 [inline] do_iter_write+0x48b/0x5f0 fs/read_write.c:1020 compat_writev+0x1ea/0x390 fs/read_write.c:1371 do_compat_writev+0xd5/0x1d0 fs/read_write.c:1392 do_syscall_32_irqs_on+0x3f/0x60 arch/x86/entry/common.c:428 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline] do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7faf569 Code: Bad RIP value. RSP: 002b:00000000f5daa0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000092 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000080 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace cd9d1949810dc629 ]--- RIP: 0010:do_con_write+0x979/0x7400 drivers/tty/vt/vt.c:2786 Code: a4 24 ca 00 00 00 44 01 e5 e8 b3 eb 85 fd 48 8b 44 24 50 80 38 00 0f 85 28 27 00 00 4d 8b a6 f0 03 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 14 18 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 13 RSP: 0018:ffffc90005fef838 EFLAGS: 00010203 RAX: 0000000020000001 RBX: dffffc0000000000 RCX: ffffc90004139000 RDX: 0000000000040000 RSI: ffffffff83edd0dd RDI: 0000000000000003 RBP: 00000000000007fe R08: ffffffff83eccd60 R09: ffff888020c6ad08 R10: 0000000000000000 R11: 0000000000000000 R12: 000000010000000e R13: 0000000000000000 R14: ffff888088696000 R15: ffff8880886963dc FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f5daab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000005ecc0000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400