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* [Bug glob/26620] New: fnmatch with collating symbols results in segmentation fault
@ 2020-09-15 21:23 harald at gigawatt dot nl
2020-09-16 13:12 ` [Bug glob/26620] " schwab@linux-m68k.org
2020-11-11 12:38 ` fweimer at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: harald at gigawatt dot nl @ 2020-09-15 21:23 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26620
Bug ID: 26620
Summary: fnmatch with collating symbols results in segmentation
fault
Product: glibc
Version: 2.32
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: glob
Assignee: unassigned at sourceware dot org
Reporter: harald at gigawatt dot nl
Target Milestone: ---
Consider this test program:
#include <stdio.h>
#include <locale.h>
#include <fnmatch.h>
int main(int argc, char *argv[]) {
setlocale(LC_ALL, "");
if (argc != 3) {
fprintf(stderr, "usage: fnmatch <pattern> <string>\n");
return 2;
}
return !!fnmatch(argv[1], argv[2], 0);
}
When called as
export LC_ALL=en_US.UTF-8
./fnmatch $'[[.L\u00B7.]]' . # [[.L·.]]
This results in a segmentation fault in internal_fnwmatch.
Seen on glibc 2.32 built with GCC 10.2.0, also reproducible with the
libc6-2.31-0ubuntu9 provided by Ubuntu 20.04 for amd64.
(I think there are a few more bugs in there that do not result in a crash, but
do result in a wrong return value. Should I include the details in here or
report that separately?)
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* [Bug glob/26620] fnmatch with collating symbols results in segmentation fault
2020-09-15 21:23 [Bug glob/26620] New: fnmatch with collating symbols results in segmentation fault harald at gigawatt dot nl
@ 2020-09-16 13:12 ` schwab@linux-m68k.org
2020-11-11 12:38 ` fweimer at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: schwab@linux-m68k.org @ 2020-09-16 13:12 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26620
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.33
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
Fixed in 2.33. For further bugs please open separate reports.
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* [Bug glob/26620] fnmatch with collating symbols results in segmentation fault
2020-09-15 21:23 [Bug glob/26620] New: fnmatch with collating symbols results in segmentation fault harald at gigawatt dot nl
2020-09-16 13:12 ` [Bug glob/26620] " schwab@linux-m68k.org
@ 2020-11-11 12:38 ` fweimer at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2020-11-11 12:38 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=26620
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fweimer at redhat dot com
Flags| |security-
--- Comment #2 from Florian Weimer <fweimer at redhat dot com> ---
Marking as security- because this needs a crafted pattern.
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end of thread, other threads:[~2020-11-11 12:38 UTC | newest]
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2020-09-15 21:23 [Bug glob/26620] New: fnmatch with collating symbols results in segmentation fault harald at gigawatt dot nl
2020-09-16 13:12 ` [Bug glob/26620] " schwab@linux-m68k.org
2020-11-11 12:38 ` fweimer at redhat dot com
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