From: Paolo Bonzini <pbonzini@redhat•com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation•org>
Cc: mark.rutland@arm•com, x86@kernel•org, wanpengli@tencent•com,
kvm@vger•kernel.org, narmstrong@baylibre•com,
catalin.marinas@arm•com, will.deacon@arm•com, hpa@zytor•com,
khilman@baylibre•com, joro@8bytes•org, rkrcmar@redhat•com,
mingo@redhat•com, Dmitry Vyukov <dvyukov@google•com>,
syzbot <syzbot+46f1dd7dbbe2bfb98b10@syzkaller•appspotmail.com>,
devicetree@vger•kernel.org, syzkaller-bugs@googlegroups•com,
robh+dt@kernel•org, bp@alien8•de,
linux-amlogic@lists•infradead.org, tglx@linutronix•de,
linux-arm-kernel@lists•infradead.org, jmattson@google•com,
USB list <linux-usb@vger•kernel.org>,
linux-kernel@vger•kernel.org, sean.j.christopherson@intel•com,
carlo@caione•org, Vitaly Kuznetsov <vkuznets@redhat•com>
Subject: Re: KASAN: slab-out-of-bounds Read in handle_vmptrld
Date: Fri, 13 Sep 2019 17:01:22 +0200 [thread overview]
Message-ID: <6a0ec3a2-2a52-f67a-6140-e0a60874538a@redhat.com> (raw)
In-Reply-To: <20190913130226.GB403359@kroah.com>
On 13/09/19 15:02, Greg Kroah-Hartman wrote:
> Look at linux-next, we "should" have fixed up hcd_buffer_alloc() now to
> not need this type of thing. If we got it wrong, please let us know and
> then yes, a fix like this would be most appreciated :)
I still see
/* some USB hosts just use PIO */
if (!hcd_uses_dma(hcd)) {
*dma = ~(dma_addr_t) 0;
return kmalloc(size, mem_flags);
}
in linux-next's hcd_buffer_alloc and also in usb.git's usb-next branch.
I also see the same
if (remap_pfn_range(vma, vma->vm_start,
virt_to_phys(usbm->mem) >> PAGE_SHIFT,
size, vma->vm_page_prot) < 0) {
...
}
in usbdev_mmap. Of course it's possible that I'm looking at the wrong
branch, or just being dense.
Paolo
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists•infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-09-13 15:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-11 20:38 KASAN: slab-out-of-bounds Read in handle_vmptrld syzbot
2019-09-12 12:25 ` Will Deacon
2019-09-12 13:54 ` Vitaly Kuznetsov
2019-09-12 16:49 ` Paolo Bonzini
2019-09-13 4:46 ` Greg Kroah-Hartman
2019-09-13 7:34 ` Paolo Bonzini
2019-09-13 13:02 ` Greg Kroah-Hartman
2019-09-13 15:01 ` Paolo Bonzini [this message]
2019-09-13 15:32 ` Robin Murphy
2019-09-13 21:39 ` Paolo Bonzini
2019-09-13 15:36 ` Alan Stern
2019-09-13 16:14 ` Paolo Bonzini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6a0ec3a2-2a52-f67a-6140-e0a60874538a@redhat.com \
--to=pbonzini@redhat$(echo .)com \
--cc=bp@alien8$(echo .)de \
--cc=carlo@caione$(echo .)org \
--cc=catalin.marinas@arm$(echo .)com \
--cc=devicetree@vger$(echo .)kernel.org \
--cc=dvyukov@google$(echo .)com \
--cc=gregkh@linuxfoundation$(echo .)org \
--cc=hpa@zytor$(echo .)com \
--cc=jmattson@google$(echo .)com \
--cc=joro@8bytes$(echo .)org \
--cc=khilman@baylibre$(echo .)com \
--cc=kvm@vger$(echo .)kernel.org \
--cc=linux-amlogic@lists$(echo .)infradead.org \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-usb@vger$(echo .)kernel.org \
--cc=mark.rutland@arm$(echo .)com \
--cc=mingo@redhat$(echo .)com \
--cc=narmstrong@baylibre$(echo .)com \
--cc=rkrcmar@redhat$(echo .)com \
--cc=robh+dt@kernel$(echo .)org \
--cc=sean.j.christopherson@intel$(echo .)com \
--cc=syzbot+46f1dd7dbbe2bfb98b10@syzkaller$(echo .)appspotmail.com \
--cc=syzkaller-bugs@googlegroups$(echo .)com \
--cc=tglx@linutronix$(echo .)de \
--cc=vkuznets@redhat$(echo .)com \
--cc=wanpengli@tencent$(echo .)com \
--cc=will.deacon@arm$(echo .)com \
--cc=x86@kernel$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox