BUG: unable to handle page fault for address: 000000010000000e #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 1fb8d067 P4D 1fb8d067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6251 Comm: syz-executor.3 Not tainted 5.7.0-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:insert_char+0x230/0x3f0 drivers/tty/vt/vt.c:846 Code: 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 01 0f 8e 19 01 00 00 d1 eb 41 0f b7 87 18 04 00 00 4c 89 f7 89 d9 66 ab 49 8d bf d0 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 RSP: 0018:ffffc900083e78d0 EFLAGS: 00010202 RAX: 0000000000000720 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 1ffff11012378483 RSI: 000000010000000e RDI: 000000010000000e RBP: 0000000000000000 R08: 000000010000000e R09: fffffbfff1516d79 R10: ffffffff8a8b6bc7 R11: fffffbfff1516d78 R12: ffff888091bc23dc R13: ffff888091bc2384 R14: 000000010000000e R15: ffff888091bc2000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5dd1b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000010000000e CR3: 000000005e04d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csi_at drivers/tty/vt/vt.c:1992 [inline] do_con_trol+0x3ebd/0x5d80 drivers/tty/vt/vt.c:2459 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: 000000010000000e ---[ end trace 2fa1cf2e257b7dcf ]--- 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:insert_char+0x230/0x3f0 drivers/tty/vt/vt.c:846 Code: 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 01 0f 8e 19 01 00 00 d1 eb 41 0f b7 87 18 04 00 00 4c 89 f7 89 d9 66 ab 49 8d bf d0 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 RSP: 0018:ffffc900083e78d0 EFLAGS: 00010202 RAX: 0000000000000720 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 1ffff11012378483 RSI: 000000010000000e RDI: 000000010000000e RBP: 0000000000000000 R08: 000000010000000e R09: fffffbfff1516d79 R10: ffffffff8a8b6bc7 R11: fffffbfff1516d78 R12: ffff888091bc23dc R13: ffff888091bc2384 R14: 000000010000000e R15: ffff888091bc2000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5dd1b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000010000000e CR3: 000000005e04d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400