http://llvm.org/bugs/show_bug.cgi?id=16482
Bug ID: 16482
Summary: failure to find use after free
Product: clang
Version: unspecified
Hardware: PC
OS: OpenBSD
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10791
--> http://llvm.org/bugs/attachment.cgi?id=10791&action=edit
code containing clear use-after-free, which fails to register in the static
analyzer
While attempting to find an issue regarding false use-after-free warnings with
BSD macros, I have apparently found that the static analyzer fails to register
a valid use-after-free warning:
$ scan-build make macro-use-after-free-false-positive
scan-build: Using '/usr/local/bin/clang-3.2' for static analysis
/usr/local/bin/ccc-analyzer -O2 -pipe -o macro-use-after-free-false-positive
macro-use-after-free-false-positive.c
scan-build: Removing directory '/tmp/scan-build-2013-06-28-4' because it
contains no reports.
Code containing use-after-free is attached.
more info regarding clang/OS:
$ clang --version
clang version 3.2 (tags/RELEASE_32/final)
Target: amd64-unknown-openbsd5.3
Thread model: posix
$ uname -mrsv
OpenBSD 5.3 GENERIC.MP#5 amd64
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