Bug 1383811

Summary: sepolgen-ifgen-attr-helper segfaults on certain inputs
Product: Red Hat Enterprise Linux 7 Reporter: Milos Malik <mmalik>
Component: policycoreutilsAssignee: Petr Lautrbach <plautrba>
Status: CLOSED WONTFIX QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: low    
Version: 7.3CC: dwalsh, lvrabec, mgrepl, mmalik, plautrba, ssekidde
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: 1383808 Environment:
Last Closed: 2017-06-29 13:42:38 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
bzip2 archive of input files causing a crash none

Description Milos Malik 2016-10-11 20:16:04 UTC 
Created attachment 1209317 [details]
bzip2 archive of input files causing a crash

Description of problem:
* found by American Fuzzy Lop

Version-Release number of selected component (if applicable):
libselinux-2.5-6.el7.x86_64
libselinux-debuginfo-2.5-6.el7.x86_64
libselinux-devel-2.5-6.el7.x86_64
libselinux-python-2.5-6.el7.x86_64
libselinux-ruby-2.5-6.el7.x86_64
libselinux-utils-2.5-6.el7.x86_64
libsemanage-2.5-4.el7.x86_64
libsemanage-devel-2.5-4.el7.x86_64
libsemanage-python-2.5-4.el7.x86_64
libsemanage-static-2.5-4.el7.x86_64
libsepol-2.5-6.el7.x86_64
libsepol-debuginfo-2.5-6.el7.x86_64
libsepol-devel-2.5-6.el7.x86_64
libsepol-static-2.5-6.el7.x86_64
policycoreutils-2.5-9.el7.x86_64
policycoreutils-debuginfo-2.5-9.el7.x86_64
policycoreutils-devel-2.5-9.el7.x86_64
policycoreutils-gui-2.5-9.el7.x86_64
policycoreutils-newrole-2.5-9.el7.x86_64
policycoreutils-python-2.5-9.el7.x86_64
policycoreutils-sandbox-2.5-9.el7.x86_64
selinux-policy-3.13.1-102.el7.noarch
selinux-policy-devel-3.13.1-102.el7.noarch
selinux-policy-doc-3.13.1-102.el7.noarch
selinux-policy-minimum-3.13.1-102.el7.noarch
selinux-policy-mls-3.13.1-102.el7.noarch
selinux-policy-sandbox-3.13.1-102.el7.noarch
selinux-policy-targeted-3.13.1-102.el7.noarch

How reproducible:
* always

Steps to Reproduce:
# ls -l /etc/selinux/minimum/policy/policy.30 
-rw-r--r--. 1 root root 834610 Oct  3 10:45 /etc/selinux/minimum/policy/policy.30
# tar jxf crashes.tar.bz2
# ls -l sepolgen-ifgen-attr-helper/
total 5712
-rw-------. 1 root root 834610 Oct 11 22:09 id000000
-rw-------. 1 root root 834610 Oct 11 22:09 id000001
-rw-------. 1 root root 834610 Oct 11 22:09 id000002
-rw-------. 1 root root 834610 Oct 11 22:09 id000003
-rw-------. 1 root root 834610 Oct 11 22:09 id000004
-rw-------. 1 root root 834610 Oct 11 22:09 id000005
-rw-------. 1 root root 834610 Oct 11 22:09 id000006
# sepolgen-ifgen-attr-helper sepolgen-ifgen-attr-helper/id000001 output
libsepol.policydb_index_others: security:  6 users, 9 roles, 1756 types, 112 bools
libsepol.policydb_index_others: security: 1 sens, 1024 cats
libsepol.policydb_index_others: security:  91 classes, 19334 rules, 4646 cond rules
Segmentation fault
# dmesg | tail -n 1
[ 3564.784906] sepolgen-ifgen-[11987]: segfault at 20 ip 00007fbe6c493ab0 sp 00007fff34428540 error 4 in sepolgen-ifgen-attr-helper[7fbe6c492000+29000]
# 

Actual results:
* segfaults

Expected results:
* some error message but no segfault