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* [Bug libc/10643] New: If pthread_create fails in aio_write, requests linked list is corrupted
@ 2009-09-15 21:40 nvachhar at google dot com
2009-09-15 21:41 ` [Bug libc/10643] " nvachhar at google dot com
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: nvachhar at google dot com @ 2009-09-15 21:40 UTC (permalink / raw)
To: glibc-bugs
When one calls aio_write, it internally calls __aio_enqueue_request, which will
in turn call aio_create_helper_thread. If thread creation fails, the newly
created request (newp in the code) will still be in the requests linked list, but
it will be freed later in __aio_enqueue_request. A subsequent call to aio_write
will cause a segmentation fault.
This bug was found in glibc-2.3.6, however a manual inspection of the code in git
reveals that the problem still exists.
--
Summary: If pthread_create fails in aio_write, requests linked
list is corrupted
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: nvachhar at google dot com
CC: glibc-bugs at sources dot redhat dot com
GCC build triplet: i686/x86_64-unknown-linux-gnu
GCC host triplet: i686/x86_64-unknown-linux-gnu
GCC target triplet: i686/x86_64-unknown-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=10643
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* [Bug libc/10643] If pthread_create fails in aio_write, requests linked list is corrupted
2009-09-15 21:40 [Bug libc/10643] New: If pthread_create fails in aio_write, requests linked list is corrupted nvachhar at google dot com
@ 2009-09-15 21:41 ` nvachhar at google dot com
2009-09-17 15:12 ` ppluzhnikov at google dot com
2009-10-30 4:02 ` drepper at redhat dot com
2 siblings, 0 replies; 5+ messages in thread
From: nvachhar at google dot com @ 2009-09-15 21:41 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From nvachhar at google dot com 2009-09-15 21:41 -------
Created an attachment (id=4198)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=4198&action=view)
Test case
If this is compiled with -DCRASH, then the program will segfault. Otherwise,
it will work properly.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10643
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* [Bug libc/10643] If pthread_create fails in aio_write, requests linked list is corrupted
2009-09-15 21:40 [Bug libc/10643] New: If pthread_create fails in aio_write, requests linked list is corrupted nvachhar at google dot com
2009-09-15 21:41 ` [Bug libc/10643] " nvachhar at google dot com
@ 2009-09-17 15:12 ` ppluzhnikov at google dot com
2009-10-30 4:02 ` drepper at redhat dot com
2 siblings, 0 replies; 5+ messages in thread
From: ppluzhnikov at google dot com @ 2009-09-17 15:12 UTC (permalink / raw)
To: glibc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppluzhnikov at google dot
| |com
http://sourceware.org/bugzilla/show_bug.cgi?id=10643
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* [Bug libc/10643] If pthread_create fails in aio_write, requests linked list is corrupted
2009-09-15 21:40 [Bug libc/10643] New: If pthread_create fails in aio_write, requests linked list is corrupted nvachhar at google dot com
2009-09-15 21:41 ` [Bug libc/10643] " nvachhar at google dot com
2009-09-17 15:12 ` ppluzhnikov at google dot com
@ 2009-10-30 4:02 ` drepper at redhat dot com
2 siblings, 0 replies; 5+ messages in thread
From: drepper at redhat dot com @ 2009-10-30 4:02 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2009-10-30 04:02 -------
There were a number of problems in that area. I think I fixed them in git.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=10643
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* [Bug libc/10643] If pthread_create fails in aio_write, requests linked list is corrupted
[not found] <bug-10643-131@http.sourceware.org/bugzilla/>
@ 2014-07-01 6:50 ` fweimer at redhat dot com
0 siblings, 0 replies; 5+ messages in thread
From: fweimer at redhat dot com @ 2014-07-01 6:50 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=10643
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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end of thread, other threads:[~2014-07-01 6:50 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-09-15 21:40 [Bug libc/10643] New: If pthread_create fails in aio_write, requests linked list is corrupted nvachhar at google dot com
2009-09-15 21:41 ` [Bug libc/10643] " nvachhar at google dot com
2009-09-17 15:12 ` ppluzhnikov at google dot com
2009-10-30 4:02 ` drepper at redhat dot com
[not found] <bug-10643-131@http.sourceware.org/bugzilla/>
2014-07-01 6:50 ` fweimer at redhat dot com
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