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Bug 599299 - vhost net lacks 2.6.35-rc1 fixes
Summary: vhost net lacks 2.6.35-rc1 fixes
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: All
OS: Linux
low
high
Target Milestone: rc
: ---
Assignee: Michael S. Tsirkin
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-06-03 04:27 UTC by Michael S. Tsirkin
Modified: 2013-01-09 22:40 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-11-11 16:14:14 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Michael S. Tsirkin 2010-06-03 04:27:43 UTC 
tracker bug to backport 2.6.35-rc1 fixes in 6.0.

commit a02c37891a9b2d7ce93f9d09455b4f67c4c23b95
Author: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
Date:   Thu May 27 19:03:56 2010 +0900

    vhost: fix the memory leak which will happen when memory_access_ok fails
    
    We need to free newmem when vhost_set_memory() fails to complete.
    
    Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
    Signed-off-by: Michael S. Tsirkin <mst>

commit d3553a52490dcac54f45083f8fa018e26c22e947
Author: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
Date:   Thu May 27 19:01:58 2010 +0900

    vhost-net: fix to check the return value of copy_to/from_user() correctly
    
    copy_to/from_user() returns the number of bytes that could not be copied.
    
    So we need to check if it is not zero, and in that case, we should return
    the error number -EFAULT rather than directly return the return value from
    copy_to/from_user().
    
    Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
    Signed-off-by: Michael S. Tsirkin <mst>

commit 7ad9c9d27048547e96e4e3a13b5780ec6f81bb9f
Author: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
Date:   Thu May 27 18:58:03 2010 +0900

    vhost: fix to check the return value of copy_to/from_user() correctly
    
    copy_to/from_user() returns the number of bytes that could not be copied.
    
    So we need to check if it is not zero, and in that case, we should return
    the error number -EFAULT rather than directly return the return value from
    copy_to/from_user().
    
    Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya.co.jp>
    Signed-off-by: Michael S. Tsirkin <mst>

commit 0f3d9a17469d71ba1bab79c07c8eecb9e26e60af
Author: Krishna Kumar <krkumar2.com>
Date:   Tue May 25 11:10:36 2010 +0530

    vhost: Fix host panic if ioctl called with wrong index
    
    Missed a boundary value check in vhost_set_vring. The host panics if
    idx == nvqs is used in ioctl commands in vhost_virtqueue_init.
    
    Signed-off-by: Krishna Kumar <krkumar2.com>
    Signed-off-by: Michael S. Tsirkin <mst>
Comment 2 Aristeu Rozanski 2010-07-01 16:21:07 UTC 
Patch(es) available on kernel-2.6.32-42.el6
Comment 5 Amos Kong 2010-08-14 23:35:41 UTC 
No regression bring by those patches.
Acceptance_test of RHEL6.0-20100701.3 pass (kernel-2.6.32-42.el6)
Comment 6 releng-rhel@redhat.com 2010-11-11 16:14:14 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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