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* [Bug libc/2163] New: ioctl() crashes if error value is returned
@ 2006-01-17 11:22 christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` [Bug libc/2163] " christoph dot stueckjuergen at siemens dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: christoph dot stueckjuergen at siemens dot com @ 2006-01-17 11:22 UTC (permalink / raw)
To: glibc-bugs
The following code causes SIGSEGV if the ioctl returns an error value:
void test()
{
int fd = open("/dev/ttyXR3", O_RDWR);
char dummy[512];
if (ioctl(fd, TCSETSW, dummy) < 0) {
printf("hello\n");
}
}
The problem is that the pointer to the global offset table (gp) is modified and
not correctly restored in the glibc implementation for MIPS64.
--
Summary: ioctl() crashes if error value is returned
Product: glibc
Version: 2.3.5
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: christoph dot stueckjuergen at siemens dot com
CC: glibc-bugs at sources dot redhat dot com
GCC build triplet: x86_64-linux-gnu
GCC host triplet: x86_64-linux-gnu
GCC target triplet: mips64-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
@ 2006-01-17 11:26 ` christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` christoph dot stueckjuergen at siemens dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: christoph dot stueckjuergen at siemens dot com @ 2006-01-17 11:26 UTC (permalink / raw)
To: glibc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
GCC host triplet|x86_64-linux-gnu |mips64-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` [Bug libc/2163] " christoph dot stueckjuergen at siemens dot com
@ 2006-01-17 11:26 ` christoph dot stueckjuergen at siemens dot com
2006-01-17 13:10 ` aj at suse dot de
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: christoph dot stueckjuergen at siemens dot com @ 2006-01-17 11:26 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From christoph dot stueckjuergen at siemens dot com 2006-01-17 11:26 -------
Created an attachment (id=836)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=836&action=view)
proposed patch for fixing the ioctl() problem for MIPS64 glibc
--
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` [Bug libc/2163] " christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` christoph dot stueckjuergen at siemens dot com
@ 2006-01-17 13:10 ` aj at suse dot de
2006-01-17 13:40 ` christoph dot stueckjuergen at siemens dot com
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: aj at suse dot de @ 2006-01-17 13:10 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aj at suse dot de 2006-01-17 13:10 -------
The current code in glibc CVS has:
L(error):
SETUP_GP64 (a0, __ioctl)
PTR_LA t9, __syscall_error
RESTORE_GP64
jr t9
I'll check this later...
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|drepper at redhat dot com |aj at suse dot de
Status|NEW |ASSIGNED
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
` (2 preceding siblings ...)
2006-01-17 13:10 ` aj at suse dot de
@ 2006-01-17 13:40 ` christoph dot stueckjuergen at siemens dot com
2006-01-31 16:26 ` gernot dot hillier at siemens dot com
2006-02-11 16:02 ` aj at suse dot de
5 siblings, 0 replies; 7+ messages in thread
From: christoph dot stueckjuergen at siemens dot com @ 2006-01-17 13:40 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From christoph dot stueckjuergen at siemens dot com 2006-01-17 13:40 -------
Subject: Re: ioctl() crashes if error value is returned
I see...
RESTORE_GP64 is #defined as .cpreturn. So it looks like it's already fixed in
the current version.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
` (3 preceding siblings ...)
2006-01-17 13:40 ` christoph dot stueckjuergen at siemens dot com
@ 2006-01-31 16:26 ` gernot dot hillier at siemens dot com
2006-02-11 16:02 ` aj at suse dot de
5 siblings, 0 replies; 7+ messages in thread
From: gernot dot hillier at siemens dot com @ 2006-01-31 16:26 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From gernot dot hillier at siemens dot com 2006-01-31 16:26 -------
See also bug 933.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |gernot dot hillier at
| |siemens dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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* [Bug libc/2163] ioctl() crashes if error value is returned
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
` (4 preceding siblings ...)
2006-01-31 16:26 ` gernot dot hillier at siemens dot com
@ 2006-02-11 16:02 ` aj at suse dot de
5 siblings, 0 replies; 7+ messages in thread
From: aj at suse dot de @ 2006-02-11 16:02 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aj at suse dot de 2006-02-11 16:01 -------
Ok, let's close it as fixed for 2.4.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=2163
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end of thread, other threads:[~2006-02-11 16:02 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-01-17 11:22 [Bug libc/2163] New: ioctl() crashes if error value is returned christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` [Bug libc/2163] " christoph dot stueckjuergen at siemens dot com
2006-01-17 11:26 ` christoph dot stueckjuergen at siemens dot com
2006-01-17 13:10 ` aj at suse dot de
2006-01-17 13:40 ` christoph dot stueckjuergen at siemens dot com
2006-01-31 16:26 ` gernot dot hillier at siemens dot com
2006-02-11 16:02 ` aj at suse dot de
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