Dear Sir,
Memory leak is found in EVP sign & verify functions
Self test report generated by make report
------------------------------------------
OpenSSL self-test report:
OpenSSL version: 0.9.8b
Last change: When applying a cipher rule check to see if string matc...
Options: no-gmp no-krb5 no-mdc2 no-rc5 no-shared no-zlib
no-zlib-dynamic
OS (uname): Linux lxdev21.cern.ch 2.4.21-40.EL.cernsmp #1 SMP Fri
Mar 17 00:53:42 CET 2006 i686 i686 i386 GNU/Linux
OS (config): i686-whatever-linux2
Target (default): linux-elf
Target: dist
Compiler: Configured with: ../configure --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info --enable-shared
--enable-threads=posix --disable-checking --with-system-zlib
--enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-54)
Test passed.
Application details
-------------------
openssl-0.9.8b/demos/sign/sign.c
Problem description:
--------------------
Upon observing memory leak in one of my applications (signature &
verification test programs) I compiled the program
openssl-0.9.8b/demos/sign/sign.c program and run using valgrind to
confirm the same. Valgrind gave following memory leak report
==2542== 3,113 (292 direct, 2,821 indirect) bytes in 3 blocks are
definitely lost in loss record 2 of 5
==2542== at 0x401A639: malloc (vg_replace_malloc.c:149)
==2542== by 0x80504A6: default_malloc_ex (in
/root/openssl-0.9.8b/demos/sign/sign)
==2542== by 0x8050902: CRYPTO_malloc (in
/root/openssl-0.9.8b/demos/sign/sign)
==2542== by 0x8049625: EVP_DigestInit_ex (in
/root/openssl-0.9.8b/demos/sign/sign)
==2542== by 0x8049506: EVP_DigestInit (in
/root/openssl-0.9.8b/demos/sign/sign)
==2542== by 0x80490D7: main (sign.c:109)
==2542==
==2542== LEAK SUMMARY:
==2542== definitely lost: 292 bytes in 3 blocks.
==2542== indirectly lost: 2,821 bytes in 115 blocks.
==2542== possibly lost: 0 bytes in 0 blocks.
==2542== still reachable: 22,124 bytes in 1,482 blocks.
==2542== suppressed: 0 bytes in 0 blocks.
==2542== Reachable blocks (those to which a pointer was found) are not
shown.
Stack Trace:
None
regards
murthy
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