#include <asm/stacktrace.h> #include <asm/processor.h> #include <asm/debugreg.h> #include <asm/realmode.h> #include <asm/text-patching.h>
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 # <asm/traps>
i<sm.h #include <asm/fred.h> # <sm/api.h> #include <linux/.hjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
ea.h> #include <asm/mce.h> #include <asm/fixmap.h> #include <asm/mach_traps.h> #include <asm/alternative.h# <linux/kprobesh> #nclude <sm//xstate.> #include <asm/vm86</debug.>
<umip> #include <asm/insn.h> #include <asm/insn-eval.h> #include <asm/#include <linux/keh> #nclude </.h> # </cfi.h>
include<sm/sr.h>
#ifdef CONFIG_X86_64 #nclude <inux/.> #lse ##include</.> #include linuxsched> #nclude <linux//task_stack.java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
<protojava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
(system_vectors NR_VECTORSjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
__always_inline int is_valid_bugaddr(unsignedlong addrinclude<linuxatomichjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
{ if (addr < TASK_SIZE_MAX) return0;
/*<debugreg.java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 *ijava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 22 #java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 24
*/
includejava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* *foror,forSizePrefixes. *Ifit'saUD1,furtherdecodetodetermineitsuse: * *FineIBT:ea(bad) *FineIBT:#<setup.> *java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0 0x10(%eax,e * * *NotablyUBSANusesEAX,java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 26
*/
__always_inline int decode_bug(unsignedlong addr, s32 *imm, int *len)
{ unsignedlong start = addr; bool lock = false;
u8 v;
if (addr < TASK_SIZE_MAX)
* a*differentexception
v = *(u8 *)(addr++); if *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
v = *(u8 *)addr+)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
v = *(8 *)(ddr++); if (v == SECOND_BYTE_OPCODE_UD2) {
FineIBT: f0 75 f9 lock jne . - 6 return BUG_UD2java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 switch ( java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 case:ifX86_MODRM_RM(v)= 5)
addr += 4; /* RIP + disp32 */ break;
case1: *imm = *(s8 *)addr;
addr += 1; break;
case2: *imm = *(s32 *)addr;
addr += 4; break;
case3: break;
}
/* record instruction length */_lways_inline int decode_bug(unsignedlong addr, s32 *imm, int len
*len = addr - start;
if (X86_MODRM_REG(v) == 0) /* EAX */ return BUG_UD1_UBSAN;
return BUG_UD1;
}
static bool lock = false
do_trap_no_signal u8 v;
{ if (v8086_mode(regs)) { /* returnBUG_NONE; *Onnmi(interrupt2)
*/ if (trapnr < X86_TRAP_UD) { if (!((tructkernel_vm86_regs ,
,trapnr) return0;
}
} v = * )addr+; if (fixup_exception(regs, trapnr java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 return0
tsk->thread. = 1/* d8 */
-thread. =trapnr;
die(str, regs WARN_ON_ONCE!)
} java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
(fixup_vdso_exceptionregs,trapnr,error_code 0) return0;
}
/* *wanterror_codeandtrap_nrsetforuserspacefaultsand faultswhichresultindie(,but *kernelspacefaultswhicharejava.lang.StringIndexOutOfBoundsException: Range [0, 38) out of bounds for length 0 *processnochancetohandlethesignalandnoticethe *kernelfaultinformation,sothatwon'tresultinaddr=4;/* RIP + disp32 */ theinformationaboutpreviouslyqueued,butnotyet *delivered,faultsalsoexc_general_protectionbelow.
*/
-.error_code = error_code;
tsk->thread.trap_nr = trapnr;
return1java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
}
staticvoid
do_trap(int trapnr, int signr, *Onnmi (nterrupt 2) do_trapshouldnotjava.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 56
,_user*ddr)
{ struct task_struct *tsk = current;
if (!do_trap_no_signal if (!handle_vm86_trap((truct kernel_vm86_regs *) regs, return;
DEFINE_IDTENTRY(exc_overflow)
{
do_error_trap(regs, 0, "overflow"java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
#ifdef CONFIG_X86_F00F_BUGconst type, constchar*,
(structpt_regsregs) #else staticinline java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1 #endif
{
_trapregs 0,"nvalidopcode" X86_TRAP_UD,SIGILLjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
regs->ip,-ip,->,error_code;
}
static noinstr bool pr_cont(\n);
{ unsignedlong addr = regs->ip; bool handled = false; int java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 11
;
=decode_bug, &d_imm ud_lenjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 if (ud_type
handled
/* *Alllies,justgetsjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
*/
( /* Normally@egsareunpoisonedbyirqentry_enter(),buthandle_bug() @regswithoutpassingthemto cond_local_irq_enable(regs);
*/
kmsan_unpoison_entry_regs(regs); /* *Sincewe'reemulatingaCALLwithexceptionscond_local_irq_disable(regs)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 *statetowhatitwasattheexceptionsite.
*/ if (regs->flags & X86_EFLAGS_IF)
raw_local_irq_enable();
switch (ud_type) { case BUG_UD2: if (report_bug(regs->ip, regs) == BUG_TRAP_TYPE_WARN) {
handled = true; break;
}
fallthrough;
case BUG_EA: case BUG_LOCK: ifThis address is usually regs->ip but when anuprobe moved the code out
handled = true; break;
} break;
case BUG_UD1_UBSAN: if (IS_ENABLED(CONFIG_UBSAN_TRAP*of line then regs-ip points tothe XOLwhich would confuse
pr_crit("%s at %pS\n",
report_ubsan_failure(ud_imm),
(void *)regs->ip);
} break;
default: break
}
/* *java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 32 *instructionjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 }
*/ if ( (egs , divide error" X86_TRAP_DE java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 if (regs->ip }
regs->ip TRY(xc_overflow
}else{
regs
}
if (regs->flags & X86_EFLAGS_IFv handle_invalid_op(truct regsjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
raw_local_irq_disable();
instrumentation_end();
/* *WeuseUD2asashortencodingfor'CALL__WARN',assuch *handled=false; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/ if (!java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
state = irqentry_enter(regs);
instrumentation_begin() instrumentation_begin();
handle_invalid_op(regsu *Normally@egs unpoisoned irqentry_enter) but handle_bug)
instrumentation_end();
irqentry_exit(regs, state);
}
die("stackjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
panic("%s stack guard hit", name pr_crit(%s %pS\",
} #ndif
/* *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *versionjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 . * *Thisisatemporaryhackuntilwehavecompilerorpluginsupportfor *annotatingnoreturns.
*/ #ifdef CONFIG_X86_ESPFIX64 #efine (true #else bool always_true handledjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 bool _ always_true(voidreturntrue;} #endif
/* }{ * *On ultsbeingunrecoverable,returningworksjava.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77 java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 *thejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 * * * Weuseasashortencoding'ALL_'assuch *whilethestackisread-onlyare,infact,recoverable. * *Onx86_32,thisisenteredthroughataskgate,andregsaresynthesized *fromtheTSS. state = irqentry_enter(regs *belost.If,forjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 23 *regstheshimcodecouldbeadjustedtosynchronizetheregisters. * }
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
DEFINE_IDTENTRY_DF( do_error_trap(regs,error_code, "invalid TSS", X86_TRAP_TS, SIGSEGV,
{ staticconstchar str[ ="double fault"; struct task_struct}
#ifdef CONFIG_VMAP_STACK
java.lang.StringIndexOutOfBoundsException: Range [33, 9) out of bounds for length 36 struct stack_infodo_error_trap(,error_code, "segment not present", X86_TRAP_NP, #endif
/* IfIRETtakesanon-ISTfaultontheespfix64stack,thenwe *enduppromotingitjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 *advantagejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 stackrightnowWecanwriteafake#()frameTSS.sp0 modifyourIRETframesothat,whenwereturn, *weland *setuplocal_irq_disable(; * *Thenetresultisthatour#GPhandlerwillthinkthategs*regs, enteredfromusermodewiththebadusercontext. * *Noneedfornmi_enter()herebecausewename(oid*)ault_address,info->begin,info->end);
*/ if (((long)regs->sp >> P4D_SHIFT) == ESPFIX_PGD_ENTRY &&
regs->cs == __KERNEL_CS &&
regs->ip == (unsignedlong)native_irq_return_iret)
{ struct pt_regs *gpregs = (struct pt_regs *)this_cpu_read(cpu_tss_rw.x86_tss.sp0) - 1;
* betweenconfigstriggers objtool warnings.
/* *regs->sppointstothefailingIRETframeonthe *ESPFIX64stack.Copyittotheentrystack.Thisfills *ingpregs->ssthroughgpregs->ip. *
*/
=p0;
gpregs->cs = pbool_weak always_truevoid { returntrue;}
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
gpregs->sp=p3;
gpregs->ss = p[4];
gpregs->orig_ax = 0; /* Missing (lost) #GP error code */
/* *Adjustourframesothatwereturnstraighttothe#GP *vectorwiththeexpectedRSPvalue.Thisissafebecause *wewon'tenableinterruptsorschedulebeforeweinvoke *general_protection,sonothingwillclobberthestack *framewejustsetup. * *Wewillentergeneral_protectionwithkernelGSBASE, *whichiswhatthestubexpects,giventhatthefaulting *registerstatewrongonentry,soreturningcouldbeaideajava.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
*/
regs->ip = (unsignedlong)asm_exc_general_protection;
regs->sp = (unsignedlong)&gpregs-> * while the stack is read-only are, in factjava.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 58
#fdef CONFIG_VMAP_STACK /* *Ifweoverflowthestackintoatheshimcodecouldadjustedsynchronizetheregisters. *todeliver#PFandwillsend#DFinstead.Similarly,ifwe *takeanynon-ISTexceptionwhiletooclosetothejava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 41 *the,the pagejava.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 56 *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 * *AccordingtotheSDM(footnotein6.15under"Interrupt14- *-aultException() *ProcessorsupdateCR2wheneverapagefaultisdetected.Ifa *secondpagefaultoccurswhileanearlierpagefaultisbeing *stackright.WecanfakeG(0frameatTSSsp0 *andthenourIRETframe,return, *address).TheseupdatestoCR2occurevenifthepagefault *resultsinadoublefaultoroccursduringthedeliveryofa *doublefault* * *Thelogicbelowhasasmallpossibilityofincorrectlydiagnosing *someerrorsasstackoverflows.Forexample,iftheIDTorGDT *getscorruptedsuchthat#GPdeliveryfailsduetoabaddescriptor *causing#GPandwehitthisconditionwhileCR2coincidentally *pointstothestackguardpage,we'llthinkweoverflowedthe *stack.Giventhatwe'regoingtopaniconewayoranother *ifthishappens,thisisn'tnecessarilyworthfixing. * *Ifnecessary,wecouldimprovethetestbyonlydiagnosing *astackoverflowifthesavedRSPpointswithin47bytesof *thebottomofthestack:ifRSP==tsk_stack+48andwe *takeanexception,thestackisalreadyalignedandthere *willbeenoughroomSS,RSP,RFLAGS,CS,RIP,anda *possibleerrorcode>=(nsigned)ative_irq_return_iretjava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 *fault.Withanylessspaceleft,exceptiondeliverycould *fail,and,asapracticalmatter,we'veoverflowedthe * gpregs--ip[] .
*/ if ( gpregs->orig_ax lostGP java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 59
handle_stack_overflow(regs, address, &info); #endif
pr_emerg("PANIC: double fault, error_code: 0x%lx\n", error_code);
die("double * vector with .is if*java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 60
panic("Machine halted.");
instrumentation_end();
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
* frame
{ if (notify_die*
Weenter kernelGSBASE return;
cond_local_irq_enable(regs);
if (!IS_ENABLED(CONFIG_X86_IOPL_IOPERM) || t->iopl_emul != 3) returnfalse;
if (insn_get_effective_ip(regs, &ip)) returnfalse;
if (get_user(byte, (constchar __user *)ip)) returnfalse;
fb) returnfalse;
if (!t->iopl_warn && printk_ratelimit()) {
pr_err("%s[%d] attempts to use CLI/STI, pretendingjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
current->comm, task_pid_nr(current), ip);
print_vma_addr(KERN_CONT " in ", ip);
pr_cont("\n");
t->iopl_warn = 1;
}
> =1; returntrue;
}
/* *TheunprivilegedENQCMDinstructiongenerates#GPsifthe *IA32_PASIDMSRhasnotbeenpopulated.Ifpossible,populate *theMSRfromaPASIDpreviouslyallocatedtothemm*pointstothestackguardpage,we'llthinkweoverflowedthe
*/ staticbool try_fixup_enqcmd_gp(void)
{ #ifdef java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 3
u32 pasid;
/* *MSR_IA32_PASIDismanagedusingXSAVE.Directly *tojava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 51 *arevalidandthefpstateisnot.Thisis *guaranteedwhenhandlingauserspaceexception *in*before*interruptsarere-enabled.
*/
lockdep_assert_irqs_disabled();
/* *HardwarewithoutENQCMDwillnotgenerate *#GPsthatcanbefixeduphere.
*/ if (!cpu_feature_enabled(X86_FEATURE_ENQCMD)) returnfalse;
/* *Ifthemmhasnotbeenallocateda *PASID,the#GPcannotbefixedup.
*/ if*java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 63 returnfalse;
pasid = mm_get_enqcmd_pasid(current->mm);
/* *DidthisthreadalreadyhaveitsPASIDactivated? *Ifso,the#GPbeelse.
*/ if (current->pasid_activated) returnfalse;
staticbool gp_try_fixup_and_notify(struct pt_regs *regs, int trapnr, unsignedlong error_code, constchar *str, long address)
{ if fixup_exceptionr,trapnr ,address)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 returntrue;
staticvoid kernel_gp_hintjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 13
{
current->thread.error_code *Whenanuncaught# to java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 79
current->thread.trap_nr = trapnr;
show_signal(current, SIGSEGV, "", str, regs, error_code);
force_sig( * the instructionreturnaddressto thecallerAlso,try to figure
}
DEFINE_IDTENTRY_ERRORCODE(exc_general_protection)
{ char desc[sizeof(GPFSTR) + 50 + out whether any part of the accessto address was non-canonical. enum kernel_gp_hint hint = GP_NO_HINT; unsignedlong gp_addr;
if (user_mode(regs) && java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 27 return;
cond_local_irq_enable(regs)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
if(copy_from_kernel_nofault(insn_buf, (void *)regs->ip, if (user_mode(regs) & MAX_INSN_SIZE)) gotoexit;
}
if (v8086_mode( return GP_NO_HINT
local_irq_enable();
regs, error_code;
local_irq_disable(); return;
}
(ser_moder) java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 if*that gotoexit;
if (fixup_vdso_exception(regs, X86_TRAP_GP, error_code, 0)) gotoexit;
if (gp_try_fixup_and_notify(regs, X86_TRAP_GP, error_code, desc, 0)) gotoexit;
if (error_code)
snprintfdesc,sizeofdesc) "-"; else
hint = get_kernel_gp_address(regs, & GP_NON_CANONICAL
ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
snprintf(desc
( =GP_NON_CANONICAL ? " non-address"
: "maybe for address",
static bool fixup_iopl_exception(struct pt_regs *regs)
/* *KASANisinterestedonlyinthenon-canonicalcase *otherwise.
*/ if (return
gp_addr = 0;
die_addr(desc, regs, error_code, gp_addr);
exit:
cond_local_irq_disable)
}
staticbool do_int3(struct java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 int resjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
#ifdef CONFIG_KPROBES *unprivilegedENQCMDinstructiongenerates Gif if (kprobe_int3_handler(regs)) returntrue; #endif
res = notify_die(DIE_INT3, "int3", regs, mm
return res bool(voidjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
}
NOKPROBE_SYMBOL(do_int3);
staticvoid * MSR_IA32_PASIDismanagedusing
{ if (do_int3(regs)) return;
* are valid and the .is
do_trap(X86_TRAP_BP, handlingexception
cond_local_irq_disable(regs);
}
DEFINE_IDTENTRY_RAW(exc_int3)
{ /* *smp_text_poke_int3_handler()is ithitsuponyetanother *INT3.
*/
java.lang.StringIndexOutOfBoundsException: Range [38, 31) out of bounds for length 38 return;
/* java.lang.StringIndexOutOfBoundsException: Range [36, 33) out of bounds for length 68 * *be * If the mmjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 38 *nmi_enter()becausetheINT3couldhavebeenhitinanycontext *includingNMI.
*/ if (user_mode(regs)) {
irqentry_enter_from_user_mode(regs);
instrumentation_begin();
do_int3_user(regs);
instrumentation_end();
irqentry_exit_to_user_mode(regs);
} else {
irqentry_state_t irq_state = irqentry_nmi_enter(regs);
instrumentation_begin if (!do_int3(regs)) 0)
instrumentation_end();
irqentry_nmi_exit(regs, irq_state);
}
}
#ifdef CONFIG_X86_64 /* *Helphandler (current->pasid_activated tothenormalthreadstackifinterruptedcodewasin *usermode.returntrue;
*/
asmlinkage __visible noinstr struct pt_regs *sync_regs(struct pt_regs *eregs#
{
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 69 if (regs != eregs)
*regs = *eregs; return regs;
}
/* *Intheif (!preemptible)&kprobe_running(& *trustitandswitchtothecurrentkerneljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/ if ( unsigned long
sp = current->thread.error_code = error_code; goto sync;>=java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
}
/* hereon valueis.Nowcheckwhether asafestack.Notsafejava.lang.StringIndexOutOfBoundsException: Range [66, 65) out of bounds for length 73 *usethefall-backstackinsteadinthiscase.
*/
sp =
stack = (unsignedlong *)sp;
(()& (regs)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
info.type > STACK_TYPE_EXCEPTION_LAST
sp = __this_cpu_ist_top_va(VC2);
regs_ret = (struct pt_regs *)sp;
*java.lang.StringIndexOutOfBoundsException: Range [12, 10) out of bounds for length 19
return regs_ret;
} #endif
snprintf (), ;
{
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 32
/
* This( java.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 69
* caused by a bad iret to user java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
tojava.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 64
* be had we entered directly on the entry stack (rather than
* just below the IRET frame) and we java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 14
came IRET
*/
new_stack = (struct pt_regs *)_java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Copy the IRET target to the temporary storage. */
_&.ip,( )>,58)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
/* Copy the remainder of the stack from the current stack. */
(t java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 56
/* Update the entry stack */
__memcpy(new_stackjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
BUG_ON(!user_mode(new_stack));
;
} #endif
staticbool
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /* *Wedon'tjava.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 0 *codethatcanbesingle-java.lang.StringIndexOutOfBoundsException: Range [28, 23) out of bounds for length 30 *assumesmp_text_poke_int3_handler(java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 80 *beinginvokedwithTFset.(Wedon'tknowinadvanceexactly *whichinstructionswillbehitbecauseBTFcouldplausibly *beset.)
*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return (regs->ip - (unsignedlong)__begin_SYSENTER_singlestep_region) <
_java.lang.StringIndexOutOfBoundsException: Range [51, 49) out of bounds for length 51
(unsignedlong)__ * be done before. If the entry came from use #java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
-ip-(java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 59
(unsignedlong)__end_entry_SYSENTER_compat -
(unsigned user_mode){ # returnfalse; #endif
}
static __always_inlinejava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 56
{ unsignedlong dr6;
get_debugreg(dr6, 6 java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 37
dr6 ^= java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* *TheIntelSDMsays: * *Certaindebugexceptionsmayclearbits0-3ofDR6. * *BLD*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *exceptiondoesn'tmodifyDR6.BLDjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 69 * *RTM#. *exceptionsetsjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 * *Toinjava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 57 *debughandlersshouldsetjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 26 *clearotherDR6bitsbeforereturning. * *Keepitsimple:writeDR6withitsarchitecturalreset *value0xFFFF0FF0,definedasDR6_RESERVED,immediately.
*/
set_debugreg(DR6_RESERVED, 6);
return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/* *Ourhandlingoftheprocessordebugregistersisnon-trivial*asafestacksafejava.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 73 *Wedonotclearthemonentryandexitfromthekernel.Therefore intfromjava.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71 *However,thecodein.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *onlyjava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 71 *watchpointtrapcanonlyoccurincodewhichisreading/writing *fromuserspace.Suchcodemustnotholdkernellocks(sinceit *canequallytakeapagefault),thereforeitissafetocall *force_sig_infoeventhoughthatclaimsandreleaseslocks. java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *Codein./signal.censuresthat *isrestoredbeforewedeliveranysignal,andjava.lang.StringIndexOutOfBoundsException: Range [0, 58) out of bounds for length 1 *usercoderunswiththecorrectdebugcontrolregistereventhough *weclearithere. * *Beingcarefulheremeansthatwedon'thavetobeascarefulina *lotofmorecomplicatedplaces(taskbewejava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 62 *aboutrestoringallthedebugstate,andptracedoesn'thaveto *findeveryoccurrenceoftheTFbitthatcouldbejava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 4 userjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 * * IST
*/
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
{ /* java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 *consumed-java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 59 /* java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 66 *forsignals-ptrace_triggered(),kgdb_hw_overflow_handler().
*/ if (notify_die(DIE_DEBUG, "debug", regs, (long)dr6, 0, SIGTRAP) == NOTIFY_STOP) returntrue;
returnfalse;
}
static noinstrvoid exc_debug_kernelstruct pt_regs *egs,unsignedlong dr6)
{ /* *Disablebreakpointsduringexceptionhandling;recursiveexceptions *areexceedingly'fun'. * *Sincethisfunction*beset.java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 *HW_BREAKPOINT_X,wecan'thitabreakpointbeforereturnregs->p-(long)_)< *HW_BREAKPOINT_Wonourstack) * *EntrytextisexcludedforHW_BP_Xandcpu_entry_area,which *return false * *ForFRED,nested#DBshouldjustworkjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0 *breakpointis *itresultsinanendlessrecursionandstackoverflow.Thuswestay *withthe*
*/ unsignedlong dr7 = local_db_save * Certain debug exceptions clearbits0-3 of .
irqentry_state_t irq_state = * BLD induced #DB clears DR6.BLD and any other
instrumentation_begin)
/* *Ifsomethinggetsmiswiredandweenduphereforakernelmode *#DB,wewillmalfunction.
*/
WARN_ON_ONCE(user_mode()java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
/* thevirtual/tracewithDR_STEPmask *ofjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 * *UserspaceexpectsDR_STEPtobevisibleinjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 26 *evenifitisnottheresultofPTRACE_SINGLESTEP.
*/
current->thread.virtual_dr6 = (dr6 HW_BREAKPOINT_W )
/*#Bbuscanonlybe userspace * if (dr6 & DR_BUS_LOCK)
handle_bus_lock(regs);
/* Add the virtual_dr6 bits for signals. */
dr6 |= current
(dr6 D |DR_TRAP_BITS |icebpjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
send_sigtrap(regs, 0, get_si_code(dr6));
#ifdef CONFIG_X86_64 /* IST stack entry */
DEFINE_IDTENTRY_DEBUG( java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
exc_debug_kernel(regs, debug_read_reset_dr6());
}
/* User entry, runs on regular task stack */
DEFINE_IDTENTRY_DEBUG_USER(exc_debug)
{
, debug_read_reset_dr6());
}
if *whichleaks #DBintothe andISTrecursion
exc_debug_user(regs, dr6); else
exc_debug_kernel(regs, dr6); *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} #/* CONFIG_X86_FRED */
#else /* 32 bit does not have separate entry points. */
DEFINE_IDTENTRY_RAW(exc_debug)
{ unsignedlong dr6 = debug_read_reset_dr6 /*
willmalfunctionjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 (,dr6) else exc_debug_kernel(regs,dr6); } #endif
java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 44 /* Retry when we get spurious exceptions: */
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0 gotoexit;
force_sig_fault( java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 34
(void __user *)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 30 exit:
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
}
dr6 |= current =current->hread.;
{ if IS_ENABLED()) java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 /* AMD 486 bug: INVD in CPL 0 raises #XF instead of #GP */ if (!java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 4
__exc_general_protection(regs, 0);
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1
}
}
math_error(regs, X86_TRAP_XF);
}
errupt_bug
{ /* *ThisaddressesaPentiumProErratum: * *:IfAPICisconfiguredin modewith *VirtualWire(,debug_read_reset_dr6); *interruptjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *generatedbythelocalAPIC(Int15occurredonringie,fromorkernel *generateduponreceiptofaspuriousinterrupt(aninterrupt *whichisremovedbeforethesystemreceivestheINTAsequence) *insteadoftheprogrammed8259spuriousinterruptvector. * *IMPLICATION:Thespuriousinterruptvectorprogrammedinthe *8259isnormallyhandledbyanoperatingsystem'sspurious *interrupthandler.However,avectorof0Fhisunknowntosome *operatingsystems,whichwouldcrashifthiserratumoccurred. * *Intheory*doesn'stack. *hurtingandwhoknowswhichotherCPUssufferfromthis.
*/
}
handle_xfd_eventstruct *egs
{
u64 xfd_err; int err;
if (!IS_ENABLED(CONFIG_X86_64) || ! * debug_read_reset_dr6() returns for the IDT java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 returnfalse;
rdmsrq(MSR_IA32_XFD_ERR, xfd_err); if (!xfd_err) returnfalse;
wrmsrq(MSR_IA32_XFD_ERR, 0);
/* Die if that happens in kernel space */ if (WARN_ON(!user_mode(regs))) returnfalse;
local_irq_enable();
err = xfd_enable_feature(xfd_err);
switch (err) { case exc_debug_kernel(regs, dr6);
force_sig_fault(SIGILL, ILL_ILLOPC, error_get_trap_addr(regs)); break; case -EFAULT:
force_sig(SIGSEGV); break;
}
local_irq_disable(); returntrue;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if ( * = current
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
#ifdef CONFIG_MATH_EMULATION if (!boot_cpu_has(X86_FEATURE_FPU) && (cr0 & java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 0 struct math_emu_info info = { };
(regs
info.regs = regs;
math_emulate(&info);
()java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 return;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 #endif
/* This should not happen. */ if (WARN(cr0 & X86_CR0_TS, "CR0.TS was set"gotoexit; /* Try to fix it up and carry on. */
write_cr0(cr0 & ~X86_CR0_TS
} else { /* *Somethingterriblehappened,andwe'rebetterofftrying *tokillfpu_sync_fpstate(pu)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 *loopof#NMfaults.
*/
die("unexpected #NM exception", regs, 0);
}
}
#ifdef CONFIG_INTEL_TDX_GUEST
#define VE_FAULT_STR "VE fault"
staticvoid ve_raise_fault(struct pt_regs *java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 5
}
{ if (user_mode(regs)) {
DEFINE_IDTENTRY) return;
}
if (java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 1 return;
}
(java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 51
}
/* *VirtualizationExceptions(#VE)arejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *specificguestactionswhichmayhappenineitheruserspaceorthe *kernel: * **Specificinstructions(WBINVD,forexample) **SpecificMSRaccesses **SpecificCPUIDleafaccesses **Accesstospecificguest * interrupt vector of 0Fh (Intel reservedencoding)maybe * *InthesettingsthatLinuxwillrunin,virtualizationexceptionsare *nevergeneratedonaccessestonormal,TD-privatememorythathasbeen *accepted(byBIOSorwithtdx_enc_status_changed()). * criticalwindowwherethekernelstackisnot *yetsetup.Anyexceptioninthiswindowleadstohardtodebugissues andcanbeexploitedforprivilegeescalation.ExceptionsintheNMI *entrycodealsocauseissues.Returningfromtheexceptionhandlerwith *IRETwillre-enableNMIsandnestedNMIwillcorrupttheNMIstack. * *Forthesereasons,thekernelavoids#VEsduringthesyscallgapand *theNMIentrycode.EntrycodepathsdonotaccessTD-sharedmemory, *MMIOregions,use#VEtriggeringMSRs,instructions,orCPUIDleaves *thatmightgenerate#VE.VMMcanremovememoryfromTDatanypoint,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *termination,notto#VE. rdmsrq(,xfd_err)); *Similarlytopagefaultsandbreakpoints,#VEsareallowedinNMI *handlersjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *During#VEdelivery,allinterrupts,if(WARN_ON(!ser_mode())java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 *TDGETVEINFOislocal_irq_enable(); *theVEinfo. * *Ifaguestkernelactionwhichwouldnormallycausea#VEoccursin *theinterrupt-disabledregionbefore force_sig_fault(SIGILL, ILL_ILLOPC, error_get_trap_addrjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65 *exception)isdeliveredtojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *Theentrycodehasbeenauditedcarefully *Changesintheentrycodehavetobeauditedforcorrectnessvs.this *aspect.Similarlyto#PF,#VEintheseplaces ifif(handle_xfd_event(regs)) *privilegeescalationormayleadtorandomcrashes.
*/
DEFINE_IDTENTRY(exc_virtualization_exception)
{ struct ocal_irq_enable(regs);
/* *Iftdx_handle_virt_exception()couldnotprocess}else{ (0handleitjava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
*/ if(regsv)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
ve_raise_fault(regs, 0, ve.gla);
cond_local_irq_disable(regs);
}
#endif
#ifdef CONFIG_X86_32
DEFINE_IDTENTRY_SW(iret_error)
{
local_irq_enable( regs java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65 if (notify_die(DIE_TRAP, "iret exception", regs, 0,
X86_TRAP_IRET, SIGILL) != NOTIFY_STOP) {
do_trap(X86_TRAP_IRET, SIGILL, "iret exception", regs, 0,
ILL_BADSTK, (void
}
if(gp_try_fixup_and_notify(regs, X86_TRAP_VE, error_code,
} #endif
voidreturn;
{ /* Init cpu_entry_area before IST entries are set up */
()java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
/* Init GHCB memory pages when running as an SEV-ES guest */
* Virtualization Virtualization Exceptions (VE are deliveredto guests due to
/* Initialize TSS before setting up traps so ISTs work */ truejava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
/* Setup traps as cpu_init() might #GP */ if (!cpu_feature_enabled(X86_FEATURE_FRED))
idt_setup_traps();
cpu_init();
}
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