BUG: unable to handle page fault for address: ffffffff0000000e #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 987c067 P4D 987c067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 31518 Comm: syz-executor.3 Not tainted 5.7.0-rc7-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:delete_char drivers/tty/vt/vt.c:859 [inline] RIP: 0010:csi_P drivers/tty/vt/vt.c:2013 [inline] RIP: 0010:do_con_trol+0x3b1/0x5d00 drivers/tty/vt/vt.c:2407 Code: b9 47 00 00 8b 8d dc 03 00 00 8b 95 84 03 00 00 0f b7 85 18 04 00 00 48 29 ca 48 2b 54 24 20 89 d9 d1 e9 48 01 d2 49 8d 3c 17 66 ab 48 8d bd d0 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a RSP: 0018:ffffc90004927920 EFLAGS: 00010287 RAX: 0000000000000720 RBX: 0000000000000002 RCX: 0000000000000001 RDX: fffffffe00000000 RSI: 0000000100000010 RDI: ffffffff0000000e RBP: ffff888033c20000 R08: ffff88805750e440 R09: fffffbfff1513311 R10: ffffffff8a899887 R11: fffffbfff1513310 R12: 1ffff92000924f2a R13: ffff888033c203dc R14: ffff888033c20384 R15: 000000010000000e FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5ddbb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffffff0000000e CR3: 0000000051ead000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_con_write.part.0+0xf34/0x1dc0 drivers/tty/vt/vt.c:2823 do_con_write drivers/tty/vt/vt.c:2593 [inline] con_write+0x41/0xe0 drivers/tty/vt/vt.c:3159 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x3f0/0xf90 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x495/0x800 drivers/tty/tty_io.c:1046 __vfs_write+0x76/0x100 fs/read_write.c:495 vfs_write+0x268/0x5d0 fs/read_write.c:559 ksys_write+0x12d/0x250 fs/read_write.c:612 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Modules linked in: CR2: ffffffff0000000e ---[ end trace bacd78e4f5e0343d ]--- 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:delete_char drivers/tty/vt/vt.c:859 [inline] RIP: 0010:csi_P drivers/tty/vt/vt.c:2013 [inline] RIP: 0010:do_con_trol+0x3b1/0x5d00 drivers/tty/vt/vt.c:2407 Code: b9 47 00 00 8b 8d dc 03 00 00 8b 95 84 03 00 00 0f b7 85 18 04 00 00 48 29 ca 48 2b 54 24 20 89 d9 d1 e9 48 01 d2 49 8d 3c 17 66 ab 48 8d bd d0 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a RSP: 0018:ffffc90004927920 EFLAGS: 00010287 RAX: 0000000000000720 RBX: 0000000000000002 RCX: 0000000000000001 RDX: fffffffe00000000 RSI: 0000000100000010 RDI: ffffffff0000000e RBP: ffff888033c20000 R08: ffff88805750e440 R09: fffffbfff1513311 R10: ffffffff8a899887 R11: fffffbfff1513310 R12: 1ffff92000924f2a R13: ffff888033c203dc R14: ffff888033c20384 R15: 000000010000000e FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5ddbb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffffff0000000e CR3: 0000000051ead000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400