[Bug 477607] New: mkfontscale produces syscalls with EINVAL
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Mon Dec 22 12:02:53 UTC 2008
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Summary: mkfontscale produces syscalls with EINVAL
https://bugzilla.redhat.com/show_bug.cgi?id=477607
Summary: mkfontscale produces syscalls with EINVAL
Product: Fedora
Version: 9
Platform: All
OS/Version: Linux
Status: NEW
Severity: medium
Priority: low
Component: freetype
AssignedTo: besfahbo at redhat.com
ReportedBy: sgrubb at redhat.com
QAContact: extras-qa at fedoraproject.org
CC: besfahbo at redhat.com, kevin at tigcc.ticalc.org,
fedora-fonts-bugs-list at redhat.com
Classification: Fedora
Created an attachment (id=327635)
--> (https://bugzilla.redhat.com/attachment.cgi?id=327635)
patch fixing problems described herein
Description of problem:
The mkfontscale program uses the freetype library. Our IDS work shows that the
freetype library causes mmap syscalls with EINVAL return codes. This is because
its not checking the length of the file before calling mmap. If the file is
opened readonly and the length is 0, the kernel does not like it.
How reproducible:
always
Steps to Reproduce:
1. add to audit rules: -a always,exit -S mmap -F exit=-ENIVAL -k einval
2. reboot system
3. ausearch --start recent -k einval
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