| fault.c (6456a2a69ee16ad402f26d272d0b67ce1d25061f) | fault.c (66fcd98883816dba3b66da20b5fc86fa410638b5) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (C) 1995 Linus Torvalds 4 * Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs. 5 * Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar 6 */ 7#include <linux/sched.h> /* test_thread_flag(), ... */ 8#include <linux/sched/task_stack.h> /* task_stack_*(), ... */ --- 1236 unchanged lines hidden (view full) --- 1245 mm = tsk->mm; 1246 1247 if (unlikely((error_code & (X86_PF_USER | X86_PF_INSTR)) == X86_PF_INSTR)) { 1248 /* 1249 * Whoops, this is kernel mode code trying to execute from 1250 * user memory. Unless this is AMD erratum #93, which 1251 * corrupts RIP such that it looks like a user address, 1252 * this is unrecoverable. Don't even try to look up the | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (C) 1995 Linus Torvalds 4 * Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs. 5 * Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar 6 */ 7#include <linux/sched.h> /* test_thread_flag(), ... */ 8#include <linux/sched/task_stack.h> /* task_stack_*(), ... */ --- 1236 unchanged lines hidden (view full) --- 1245 mm = tsk->mm; 1246 1247 if (unlikely((error_code & (X86_PF_USER | X86_PF_INSTR)) == X86_PF_INSTR)) { 1248 /* 1249 * Whoops, this is kernel mode code trying to execute from 1250 * user memory. Unless this is AMD erratum #93, which 1251 * corrupts RIP such that it looks like a user address, 1252 * this is unrecoverable. Don't even try to look up the |
| 1253 * VMA. | 1253 * VMA or look for extable entries. |
| 1254 */ 1255 if (is_errata93(regs, address)) 1256 return; 1257 | 1254 */ 1255 if (is_errata93(regs, address)) 1256 return; 1257 |
| 1258 bad_area_nosemaphore(regs, error_code, address); | 1258 page_fault_oops(regs, error_code, address); |
| 1259 return; 1260 } 1261 1262 /* kprobes don't want to hook the spurious faults: */ 1263 if (unlikely(kprobe_page_fault(regs, X86_TRAP_PF))) 1264 return; 1265 1266 /* --- 289 unchanged lines hidden --- | 1259 return; 1260 } 1261 1262 /* kprobes don't want to hook the spurious faults: */ 1263 if (unlikely(kprobe_page_fault(regs, X86_TRAP_PF))) 1264 return; 1265 1266 /* --- 289 unchanged lines hidden --- |