BUG: unable to handle page fault for address: ffffffff0000000e #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 9270067 P4D 9270067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 1 PID: 25935 Comm: syz-executor.3 Not tainted 5.6.0-rc2-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:853 [inline] RIP: 0010:csi_P drivers/tty/vt/vt.c:1996 [inline] RIP: 0010:do_con_trol drivers/tty/vt/vt.c:2390 [inline] RIP: 0010:do_con_write+0x9565/0xf360 drivers/tty/vt/vt.c:2808 Code: 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 60 4b 00 00 48 8b 84 24 a0 00 00 00 0f b7 00 41 81 e4 ff ff ff 7f 4c 89 e1 48 89 df 66 ab 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 50 8a 04 01 84 RSP: 0018:ffffc900017f7880 EFLAGS: 00010202 RAX: 0000000000000720 RBX: ffffffff0000000e RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000100000010 RDI: ffffffff0000000e RBP: ffffc900017f7b68 R08: ffffffff84008491 R09: ffffffff84005df0 R10: ffff888096b70140 R11: 000000000000001c R12: 0000000000000001 R13: 0000000000000000 R14: 0000000100000010 R15: 0000000000000002 FS: 00007fb15a77f700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff0000000e CR3: 0000000094988000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: con_write+0x25/0x40 drivers/tty/vt/vt.c:3146 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0xd0c/0x1200 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x5a1/0x950 drivers/tty/tty_io.c:1046 __vfs_write+0xb8/0x740 fs/read_write.c:494 vfs_write+0x270/0x580 fs/read_write.c:558 ksys_write+0x117/0x220 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:620 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c429 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb15a77ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb15a77f6d4 RCX: 000000000045c429 RDX: 0000000000000320 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000cda R14: 00000000004ceba8 R15: 000000000076bf2c Modules linked in: CR2: ffffffff0000000e ---[ end trace 270d5fd51f448931 ]--- 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:853 [inline] RIP: 0010:csi_P drivers/tty/vt/vt.c:1996 [inline] RIP: 0010:do_con_trol drivers/tty/vt/vt.c:2390 [inline] RIP: 0010:do_con_write+0x9565/0xf360 drivers/tty/vt/vt.c:2808 Code: 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 60 4b 00 00 48 8b 84 24 a0 00 00 00 0f b7 00 41 81 e4 ff ff ff 7f 4c 89 e1 48 89 df 66 ab 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 50 8a 04 01 84 RSP: 0018:ffffc900017f7880 EFLAGS: 00010202 RAX: 0000000000000720 RBX: ffffffff0000000e RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000100000010 RDI: ffffffff0000000e RBP: ffffc900017f7b68 R08: ffffffff84008491 R09: ffffffff84005df0 R10: ffff888096b70140 R11: 000000000000001c R12: 0000000000000001 R13: 0000000000000000 R14: 0000000100000010 R15: 0000000000000002 FS: 00007fb15a77f700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff0000000e CR3: 0000000094988000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400