Crash in __libc_free

Similar reports
Problem #5397
Component
openssh
Last affected version
0:7.4p1-23.el7_9
Executable
/usr/sbin/sshd
Error name
SIGSEGV 11
First occurrence
2022-11-09
Last occurrence
2026-07-07
Unique reports
21
Quality
-23

Statistics

Operating system Unique / Total count
CentOS 7 21 / 2,252
Operating system Count
CentOS 7 2,252
Architecture Count
x86_64 2,252
Related packages Count
openssh-server 2,252
 0:7.4p1-23.el7_9 2,213
 0:7.4p1-22.el7_9 39
openldap 2,244
 0:2.4.44-25.el7_9 2,220
 0:2.4.44-21.el7_6 24
zlib 2,244
 0:1.2.7-21.el7_9 2,216
 0:1.2.7-18.el7 24
 0:1.2.7-20.el7_9 4
Show more… (35)
libgcrypt 2,244
 0:1.5.3-14.el7 2,244
lz4 2,244
 0:1.8.3-1.el7 2,220
 0:1.7.5-3.el7 24
systemd-libs 2,244
 0:219-78.el7_9.9 2,213
 0:219-73.el7_8.9 24
 0:219-78.el7_9.7 7
libselinux 2,244
 0:2.5-15.el7 2,244
glibc 2,244
 0:2.17-326.el7_9.3 2,213
 0:2.17-323.el7_9 24
 0:2.17-326.el7_9 7
xz-libs 2,244
 0:5.2.2-2.el7_9 2,220
 0:5.2.2-1.el7 24
fipscheck-lib 2,244
 0:1.4.1-6.el7 2,244
nss-util 2,244
 0:3.90.0-1.el7_9 2,213
 0:3.44.0-4.el7_7 24
 0:3.79.0-1.el7_9 7
nss 2,244
 0:3.90.0-2.el7_9 2,213
 0:3.44.0-7.el7_7 24
 0:3.79.0-4.el7_9 4
 0:3.79.0-5.el7_9 3
libgcc 2,244
 0:4.8.5-44.el7 2,244
cracklib 2,244
 0:2.9.0-11.el7 2,244
krb5-libs 2,244
 0:1.15.1-55.el7_9 2,220
 0:1.15.1-46.el7 24
pcre 2,244
 0:8.32-17.el7 2,244
nss-softokn-freebl 2,244
 0:3.90.0-6.el7_9 2,213
 0:3.44.0-8.el7_7 24
 0:3.79.0-4.el7_9 7
libcom_err 2,244
 0:1.42.9-19.el7 2,220
 0:1.42.9-17.el7 24
openssl-libs 2,244
 1:1.0.2k-26.el7_9 2,216
 1:1.0.2k-21.el7_9 24
 1:1.0.2k-25.el7_9 4
cyrus-sasl-lib 2,244
 0:2.1.26-24.el7_9 2,220
 0:2.1.26-23.el7 24
nspr 2,244
 0:4.35.0-1.el7_9 2,213
 0:4.21.0-1.el7 24
 0:4.34.0-3.1.el7_9 7
libcap 2,244
 0:2.22-11.el7 2,244
bzip2-libs 2,244
 0:1.0.6-13.el7 2,244
tcp_wrappers-libs 2,244
 0:7.6-77.el7 2,244
pam 2,244
 0:1.1.8-23.el7 2,244
audit-libs 2,244
 0:2.8.5-4.el7 2,244
libgpg-error 2,244
 0:1.12-3.el7 2,244
elfutils-libs 2,244
 0:0.176-5.el7 2,220
 0:0.176-4.el7 24
elfutils-libelf 2,244
 0:0.176-5.el7 2,220
 0:0.176-4.el7 24
keyutils-libs 2,244
 0:1.5.8-3.el7 2,244
libcap-ng 2,244
 0:0.7.5-4.el7 2,244
libpwquality 2,244
 0:1.2.3-5.el7 2,244
libattr 2,244
 0:2.4.46-13.el7 2,244
sssd-client 2,235
 0:1.16.5-10.el7_9.16 2,213
 0:1.16.4-37.el7_8.4 16
 0:1.16.5-10.el7_9.15 3
 0:1.16.5-10.el7_9.14 3
nss-pam-ldapd 2,213
 0:0.8.13-25.el7 2,213
dbus-libs 2,213
 1:1.10.24-15.el7 2,213
oddjob-mkhomedir 2,213
 0:0.31.5-4.el7 2,213
nss-mdns 31
 0:0.14.1-9.el7 31

Packages names with count less than the total count of reports are most probably not the cause of the problem.

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Backtrace

Frame # Function Binary Source or offset Line
1
__libc_free
/lib64/libc.so.6 0x85b9c
Build id: 7cd4a08c18c60e1e2ea1aebb88c9379bd7289d38 		-
2
/usr/lib64/security/pam_captcha.so 0x1866
Build id: 70ae051f39761fccbd4838558c5003a1c4ae45d3 		-
3
pam_sm_authenticate
/usr/lib64/security/pam_captcha.so 0x14e8
Build id: 70ae051f39761fccbd4838558c5003a1c4ae45d3 		-
4
_pam_dispatch
/lib64/libpam.so.0 0x2f0a
Build id: d908e2ffa0016fc4601c0de7c07f725c5d4c98d4 		-
5
pam_authenticate
/lib64/libpam.so.0 0x27d0
Build id: d908e2ffa0016fc4601c0de7c07f725c5d4c98d4 		-
6
sshpam_auth_passwd
/usr/sbin/sshd 0x34150
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-
7
auth_password
/usr/sbin/sshd 0x117db
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-
8
mm_answer_authpassword
/usr/sbin/sshd 0x27c52
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-
9
monitor_read
/usr/sbin/sshd 0x2a489
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-
10
monitor_child_preauth
/usr/sbin/sshd 0x2abfc
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-
11
main
/usr/sbin/sshd 0xf2d4
Build id: 532a74c7148b67d485636a0995850f00f6039a18 		-