From: Dave Jones <davej@redhat.com>
To: Jiri Slaby <jslaby@suse.cz>
Cc: trinity@vger.kernel.org
Subject: Re: trinity: lots of free(): invalid pointer
Date: Mon, 20 Jan 2014 16:37:59 -0500 [thread overview]
Message-ID: <20140120213759.GA11834@redhat.com> (raw)
In-Reply-To: <52DD7E2E.7000307@suse.cz>
On Mon, Jan 20, 2014 at 08:51:10PM +0100, Jiri Slaby wrote:
> (gdb) l * 0x410fa4
> 0x410fa4 is in post_modify_ldt (syscalls/modify_ldt.c:62).
> 57
> 58 ptr = (void *) shm->scratch[childno];
> 59
> 60 if (ptr != NULL)
> 61 free(ptr);
> 62 }
> 63
> 64 struct syscallentry syscall_modify_ldt = {
> 65 .name = "modify_ldt",
> 66 .num_args = 3,
>
That syscall should probably be marked as AVOID for now, as it's pretty easy
to completely screw up the LDT and segv. We'll need to be a bit more
creative to make it actually find bugs.
Dave
prev parent reply other threads:[~2014-01-20 21:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 22:37 trinity: lots of free(): invalid pointer Jiri Slaby
2014-01-17 19:09 ` Dave Jones
2014-01-20 19:31 ` Jiri Slaby
2014-01-20 19:51 ` Jiri Slaby
2014-01-20 21:37 ` Dave Jones [this message]
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