diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/extable.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c index de43525df69b..5829457f7ca3 100644 --- a/arch/x86/mm/extable.c +++ b/arch/x86/mm/extable.c @@ -80,6 +80,18 @@ __visible bool ex_handler_uaccess(const struct exception_table_entry *fixup, } EXPORT_SYMBOL(ex_handler_uaccess); +__visible bool ex_handler_copy(const struct exception_table_entry *fixup, + struct pt_regs *regs, int trapnr, + unsigned long error_code, + unsigned long fault_addr) +{ + WARN_ONCE(trapnr == X86_TRAP_GP, "General protection fault in user access. Non-canonical address?"); + regs->ip = ex_fixup_addr(fixup); + regs->ax = trapnr; + return true; +} +EXPORT_SYMBOL(ex_handler_copy); + __visible bool ex_handler_rdmsr_unsafe(const struct exception_table_entry *fixup, struct pt_regs *regs, int trapnr, unsigned long error_code, @@ -136,7 +148,7 @@ enum handler_type ex_get_fault_handler_type(unsigned long ip) handler = ex_fixup_handler(e); if (handler == ex_handler_fault) return EX_HANDLER_FAULT; - else if (handler == ex_handler_uaccess) + else if (handler == ex_handler_uaccess || handler == ex_handler_copy) return EX_HANDLER_UACCESS; else return EX_HANDLER_OTHER; |