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[Bug binutils/27261] New: stack overflow in cxxfilt, peek, rust-demangle
From: |
featherrain26 at gmail dot com |
Subject: |
[Bug binutils/27261] New: stack overflow in cxxfilt, peek, rust-demangle.c:85 |
Date: |
Thu, 28 Jan 2021 07:17:10 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=27261
Bug ID: 27261
Summary: stack overflow in cxxfilt, peek, rust-demangle.c:85
Product: binutils
Version: 2.37 (HEAD)
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: featherrain26 at gmail dot com
Target Milestone: ---
Created attachment 13166
--> https://sourceware.org/bugzilla/attachment.cgi?id=13166&action=edit
POC
Hi, there.
There is a stack overflow in the newest version(2eda57ef) of cxxfilt,
rust-demangle.c:85 related to path demangling, which directly causes a
segmentation fault.
To reproduce, run
cxxfilt < poc
Here is the trace reported by ASAN:
ASAN:SIGSEGV
=================================================================
==52498==ERROR: AddressSanitizer: stack-overflow on address 0x7ffeeb551ff8 (pc
0x0000009768c0 bp 0x7ffeebd4f8b0 sp 0x7ffeeb551ff8 T0)
#0 0x9768bf in peek ../../libiberty/rust-demangle.c:85
#1 0x9768bf in next ../../libiberty/rust-demangle.c:105
#2 0x9768bf in demangle_path ../../libiberty/rust-demangle.c:674
SUMMARY: AddressSanitizer: stack-overflow ../../libiberty/rust-demangle.c:85
peek
==52498==ABORTING
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- [Bug binutils/27261] New: stack overflow in cxxfilt, peek, rust-demangle.c:85,
featherrain26 at gmail dot com <=