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Re: [Tinycc-devel] AddressSanitizer: heap-buffer-overflow
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From: |
Michael Matz |
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Subject: |
Re: [Tinycc-devel] AddressSanitizer: heap-buffer-overflow |
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Date: |
Sat, 13 Feb 2021 00:38:26 +0100 (CET) |
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User-agent: |
Alpine 2.21 (LSU 202 2017-01-01) |
Hello,
On Thu, 11 Feb 2021, Zhuo Zhang wrote:
A heap-buffer overflow occurs in commit
fbef90a7039b994907db34fde50f6fa5e46ab535 (ASAN on).
System info: ubuntu 18.04, x86-64
$ cat poc.c
a() {
int b;
asm("" : : ""(b == 0), ""(b));
}
Thanks for the report, it showed a real bug. Fixed in mob.
Ciao,
Michael.