[openssl-users] Received signal SIGSEGV in CRYPTO_add_lock()

[Vikas TM]

Hi,

It looks like there is issue in handling crypto locks. I encountered
segmentation fault in CRYPTO_add_lock() function referencing NULL pointer.
Please find GDB output below,

(gdb) run ftp://x.x.x.x:sample.txt

Starting program: /App/vikftp ftp://x.x.x.x:sample.txt

Missing separate debuginfo for /lib/ld-linux.so.2

Missing separate debuginfo for /lib/libdl.so.2

Missing separate debuginfo for /lib/libpam.so.0

Missing separate debuginfo for /lib/libm.so.6

Missing separate debuginfo for /lib/libc.so.6

Missing separate debuginfo for /lib/libaudit.so.0

process 22287 is executing new program: /App/vikftp

Missing separate debuginfo for /lib/ld-linux.so.2

Missing separate debuginfo for /lib/libdl.so.2

Missing separate debuginfo for /lib/libpam.so.0

Missing separate debuginfo for /lib/libm.so.6

Missing separate debuginfo for /lib/libc.so.6

Missing separate debuginfo for /lib/libaudit.so.0



Program received signal SIGSEGV, Segmentation fault.

0x08205766 in CRYPTO_add_lock (pointer=0x1011, amount=-1, type=3,
file=0x85d0030 "/102d/s/tasn_utl.c", line=118)

    at /102d/s/cryptlib.c:624

624             ret = *pointer + amount;

(gdb) bt

#0  0x08205766 in CRYPTO_add_lock (pointer=0x1011, amount=-1, type=3,
file=0x85d0030 "/102d/s/tasn_utl.c", line=118)

    at /102d/s/cryptlib.c:624

#1  0x08249d2a in asn1_do_lock (pval=0xff8eee90, op=-1, it=0x862cb1c) at
/102d/s/tasn_utl.c:118

#2  0x08246ed5 in asn1_item_combine_free (pval=0xff8eee90, it=0x862cb1c,
combine=0) at /102d/s/tasn_fre.c:146

#3  0x08246c40 in ASN1_item_free (val=0x1001, it=0x862cb1c) at
/102d/s/tasn_fre.c:72

#4  0x0825eeea in X509_free (a=0x1001) at /102d/s/x_x509.c:143

#5  0x082ee677 in ssl_cert_clear_certs (c=0x872e4e0) at
/102d/s/ssl_cert.c:431

#6  0x082ee7ed in ssl_cert_free (c=0x872e4e0) at /102d/s/ssl_cert.c:489

#7  0x0822f926 in SSL_free (s=0x872e340) at /102d/s/ssl_lib.c:627

#8  0x0816566c in closeConnection (pcx=0x86d8310, rsn=0x0, graceful=1
'\001') at /App/vikftp.c:10098

Please let me know if you have any solution.

Thanks & Regards,
Vikas
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