Date: Sat, 26 Aug 2000 06:55:40 -0700 (PDT) From: jml@cubical.fi To: freebsd-gnats-submit@FreeBSD.org Subject: misc/20862: malloc() generates SIGSEGV Message-ID: <20000826135540.E62AD37B424@hub.freebsd.org>
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>Number: 20862
>Category: misc
>Synopsis: malloc() generates SIGSEGV
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Aug 26 07:00:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Juha Liukkonen
>Release: 4.1-RELEASE
>Organization:
Cubical Solutions Ltd
>Environment:
FreeBSD skitso.intra.net 4.1-RELEASE FreeBSD 4.1-RELEASE #0: Sat Aug 19 14:56:42 EEST 2000
root@skitso.intra.net:/usr/src/sys/compile/server-mp.conf i386
>Description:
malloc() says "recursive call" and gives a SIGSEGV when called with a
nasty size value (0xffff0000..0xfffefff qualify). The
wraparound check added with kern/2964 was apparently not sufficient :-)
>How-To-Repeat:
void *foo = malloc(0xffff0000);
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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