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[Bug stdio/15142] New: Missing locking in _IO_cleanup
- From: "schwab at linux-m68k dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 13 Feb 2013 13:12:21 +0000
- Subject: [Bug stdio/15142] New: Missing locking in _IO_cleanup
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=15142
Bug #: 15142
Summary: Missing locking in _IO_cleanup
Product: glibc
Version: 2.3.4
Status: NEW
Severity: normal
Priority: P2
Component: stdio
AssignedTo: unassigned@sourceware.org
ReportedBy: schwab@linux-m68k.org
Classification: Unclassified
Created attachment 6870
--> http://sourceware.org/bugzilla/attachment.cgi?id=6870
Testcase
When _IO_flush_all_lockp is called from _IO_cleanup it doesn't do any locking
on _IO_list_all, which races with fopen/fclose from other threads. This can
result in heap corruption.
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