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* [Bug middle-end/114540] New: Use of atoi allows invalid registers
@ 2024-04-01 4:32 pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2024-04-01 4:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114540
Bug ID: 114540
Summary: Use of atoi allows invalid registers
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: accepts-invalid
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Blocks: 44574
Target Milestone: ---
varasm.cc (decode_reg_name_and_count) uses atoi which means it can allow some
invalid code through testcase:
```
void f()
{
asm("":::"4294967296");
}
register int a asm("4294967296");
```
also Options: `-fstack-limit-register=4294967296 -ffixed-4294967296`.
Filed seperately from PR 44574 so it can be tracked seperately.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44574
[Bug 44574] Avoid use of atoi
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2024-04-01 4:32 [Bug middle-end/114540] New: Use of atoi allows invalid registers pinskia at gcc dot gnu.org
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