BUG: unable to handle page fault for address: 000000010000000e #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 8e5df067 P4D 8e5df067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 31144 Comm: a.out Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:memset16 arch/x86/include/asm/string_64.h:25 [inline] RIP: 0010:scr_memsetw include/linux/vt_buffer.h:36 [inline] RIP: 0010:csi_K drivers/tty/vt/vt.c:1588 [inline] RIP: 0010:do_con_trol drivers/tty/vt/vt.c:2398 [inline] RIP: 0010:do_con_write+0x66a3/0x7400 drivers/tty/vt/vt.c:2823 Code: b6 04 18 84 c0 74 08 2c 01 0f 8e a5 00 00 00 48 63 ed 44 89 e9 41 0f b7 86 18 04 00 00 48 01 ed 48 03 6c 24 28 d1 e9 48 89 ef 66 ab 49 8d be d0 04 00 00 48 89 f8 48 c1 e8 03 0f b6 04 18 84 RSP: 0018:ffffc90001c0fa40 EFLAGS: 00010202 RAX: 0000000000000720 RBX: dffffc0000000000 RCX: 0000000000000001 RDX: ffff8880938b0480 RSI: ffffffff83ee1cf6 RDI: 000000010000000e RBP: 000000010000000e R08: 0000000000000001 R09: ffff8880938b0d48 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000002 R14: ffff8880a8dfc000 R15: ffff8880a8dfc3dc FS: 0000000002475880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000010000000e CR3: 00000000a8222000 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 vfs_write+0x2b0/0x6b0 fs/read_write.c:576 ksys_write+0x12d/0x250 fs/read_write.c:631 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x437a19 Code: Bad RIP value. RSP: 002b:00007ffe9a9829b8 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002f8 RCX: 0000000000437a19 RDX: 0000000000000078 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007ffe9a9829d0 R08: 000000000000000e R09: 0000000000401c30 R10: 0000000000000001 R11: 0000000000000217 R12: 0000000000401c30 R13: 0000000000401cc0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: 000000010000000e ---[ end trace c87b397b2a92885e ]--- RIP: 0010:memset16 arch/x86/include/asm/string_64.h:25 [inline] RIP: 0010:scr_memsetw include/linux/vt_buffer.h:36 [inline] RIP: 0010:csi_K drivers/tty/vt/vt.c:1588 [inline] RIP: 0010:do_con_trol drivers/tty/vt/vt.c:2398 [inline] RIP: 0010:do_con_write+0x66a3/0x7400 drivers/tty/vt/vt.c:2823 Code: b6 04 18 84 c0 74 08 2c 01 0f 8e a5 00 00 00 48 63 ed 44 89 e9 41 0f b7 86 18 04 00 00 48 01 ed 48 03 6c 24 28 d1 e9 48 89 ef 66 ab 49 8d be d0 04 00 00 48 89 f8 48 c1 e8 03 0f b6 04 18 84 RSP: 0018:ffffc90001c0fa40 EFLAGS: 00010202 RAX: 0000000000000720 RBX: dffffc0000000000 RCX: 0000000000000001 RDX: ffff8880938b0480 RSI: ffffffff83ee1cf6 RDI: 000000010000000e RBP: 000000010000000e R08: 0000000000000001 R09: ffff8880938b0d48 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000002 R14: ffff8880a8dfc000 R15: ffff8880a8dfc3dc FS: 0000000002475880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f410803e088 CR3: 00000000a8222000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400