BUG: unable to handle page fault for address: 000000010000000e #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD a88be067 P4D a88be067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8190 Comm: syz-executor.1 Not tainted 5.8.0-rc4-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+0x69bf/0x7770 drivers/tty/vt/vt.c:2823 Code: 18 84 c0 74 08 2c 01 0f 8e a7 00 00 00 4d 63 ed 44 89 f1 41 0f b7 87 18 04 00 00 4d 01 ed 4c 03 ad c8 fe ff ff d1 e9 4c 89 ef 66 ab 49 8d bf d0 04 00 00 48 89 f8 48 c1 e8 03 0f b6 04 18 84 RSP: 0018:ffffc9000a4d79d8 EFLAGS: 00010202 RAX: 0000000000000720 RBX: dffffc0000000000 RCX: 0000000000000001 RDX: ffff88808dfee440 RSI: ffffffff84030370 RDI: 000000010000000e RBP: ffffc9000a4d7bc0 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 000000010000000e R14: 0000000000000002 R15: ffff8880969bd000 FS: 00007fd79fc09700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000010000000e CR3: 00000000a88bf000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: con_write+0x27/0xb0 drivers/tty/vt/vt.c:3159 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x40e/0x10e0 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x4df/0x850 drivers/tty/tty_io.c:1046 vfs_write+0x2bc/0x6c0 fs/read_write.c:576 ksys_write+0x155/0x290 fs/read_write.c:631 __do_sys_write fs/read_write.c:643 [inline] __se_sys_write fs/read_write.c:640 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:640 do_syscall_64+0x64/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45b3c9 Code: Bad RIP value. RSP: 002b:00007fd79fc08c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd79fc096d4 RCX: 000000000045b3c9 RDX: 0000000000000078 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000c79 R14: 00000000004cd676 R15: 000000000075bf2c Modules linked in: CR2: 000000010000000e ---[ end trace b7c7a1f0d841365a ]--- 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+0x69bf/0x7770 drivers/tty/vt/vt.c:2823 Code: 18 84 c0 74 08 2c 01 0f 8e a7 00 00 00 4d 63 ed 44 89 f1 41 0f b7 87 18 04 00 00 4d 01 ed 4c 03 ad c8 fe ff ff d1 e9 4c 89 ef 66 ab 49 8d bf d0 04 00 00 48 89 f8 48 c1 e8 03 0f b6 04 18 84 RSP: 0018:ffffc9000a4d79d8 EFLAGS: 00010202 RAX: 0000000000000720 RBX: dffffc0000000000 RCX: 0000000000000001 RDX: ffff88808dfee440 RSI: ffffffff84030370 RDI: 000000010000000e RBP: ffffc9000a4d7bc0 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 000000010000000e R14: 0000000000000002 R15: ffff8880969bd000 FS: 00007fd79fc09700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000010000000e CR3: 00000000a88bf000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400