Arjan van de Ven wrote:
On Tue, 2007-03-20 at 01:36 -0400, Eric St-Laurent wrote:
On Tue, 2007-20-03 at 01:04 -0400, Lee Revell wrote:
I think CONFIG_TRY_TO_DISABLE_SMI would be excellent for debugging,
not to mention people trying to spec out hardware for RT
applications...
There is a SMI
Andi Kleen wrote:
Matt LaPlante [EMAIL PROTECTED] writes:
Since everyone loves random statistics, here are a few gems to give you a break
from your busy day:
Number of lines in the 2.6.22 Linux kernel source that include one or more
trailing whitespaces: 135209
Bytes saved by removing said
Theodore Tso wrote:
On Mon, Dec 17, 2007 at 08:30:05AM -0800, John Reiser wrote:
[You have yet to show that...]
There is a path that goes from user data into the pool.
Note particularly that the path includes data from other users.
Under the current implementation, anyone who accesses
tree. FWIW, the same patch applies cleanly to -next.
--Andy
On Thu, Sep 27, 2012 at 10:36 AM, Greg KH gre...@linuxfoundation.org wrote:
On Tue, Jul 17, 2012 at 04:19:18PM -0700, Andy Lutomirski wrote:
Apologies for the lateness of this stuff. I was at a conference last
week when the Chrome
On 11/10/2012 02:44 PM, Kees Cook wrote:
This adds support for seccomp BPF to ARM. When built with the seccomp
improvement patch waiting in linux-next (seccomp: Make syscall skipping
and nr changes more consistent), this passes the seccomp regression
test suite:
I've seen an odd problem three times in the past two weeks. I suspect
a Linux 3.6 regression. Im on 3.6.3-1.fc17.x86_64. I run a parallel
compilation, and no progress is made. All cpus are pegged at 100%
system time by the respective cc1plus processes. Reading
/proc/pid/stack shows either
On Tue, Nov 13, 2012 at 3:11 PM, David Rientjes rient...@google.com wrote:
On Tue, 13 Nov 2012, Andy Lutomirski wrote:
I've seen an odd problem three times in the past two weeks. I suspect
a Linux 3.6 regression. Im on 3.6.3-1.fc17.x86_64. I run a parallel
compilation, and no progress
On Tue, Nov 13, 2012 at 3:41 PM, David Rientjes rient...@google.com wrote:
On Tue, 13 Nov 2012, Andy Lutomirski wrote:
It just happened again.
$ grep -E compact_|thp_ /proc/vmstat
compact_blocks_moved 8332448774
compact_pages_moved 21831286
compact_pagemigrate_failed 211260
compact_stall
On 10/16/2012 11:09 AM, wilson self wrote:
I noticed recently that my get time of day calls are quite a bit
slower than I would have expected; and it would see that a likely
cause is that they are not going via vdso, but rather a system call.
In older kernels there was kernel.vsyscall64
On Tue, Oct 16, 2012 at 12:33 PM, wilson self wsel...@gmail.com wrote:
current_clocksource is tsc.
the entire source of the test application:
---
#include stdio.h
#include stdlib.h
#include sys/time.h
#include time.h
int main() {
struct timeval tim;
gettimeofday(tim, NULL);
On Tue, Oct 16, 2012 at 12:43 PM, wilson self wsel...@gmail.com wrote:
I am just using gcc timetest.c -o timetest
Should be dynamically linked. glibc is 2.5, which is quite old, but I
think this should still work with it, no?
You need at least glibc 2.7 for this to work well on modern
[cc Paul McKenney, who is probably the leading expert on these things]
On 10/17/2012 04:30 PM, Andrew Morton wrote:
On Tue, 16 Oct 2012 17:12:57 +0200
Michael Kerrisk (man-pages) mtk.manpa...@gmail.com wrote:
On Thu, Aug 23, 2012 at 11:15 PM, Paton J. Lewis pale...@adobe.com wrote:
From:
Jeff Garzik wrote:
My Linux SATA software/hardware status reports have just been updated.
To see where libata (SATA) support stands for a particular piece of
hardware, or a particular feature, go to
http://linux.yyz.us/sata/
What's the timeline on getting sata-promise's PATA support into
Nigel Kukard wrote:
Hi Guys,
How stable is reiserfs quotas in 2.6.11.12?
It's been stable for me for months (using various 2.6.11.y kernels),
over RAID-5 even.
--Andy
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More
Paul Jackson wrote:
Ok - that flies, or at least walks. It took 53 seconds to
compute this cost matrix.
Not that I really know what I'm talking about here, but this sounds
highly parallelizable. It seems like you could do N/2 measurements at a
time, so this should be O(N) to compute the matrix
Jeff Garzik wrote:
On Thu, Mar 03, 2005 at 12:39:41AM +, J.A. Magallon wrote:
Hi...
I posted this in other mail, but now I can confirm this.
I have a box with a SATA RAID-5, and with 2.6.11-rc3-mm2+libata-dev1
works like a charm as a samba server, I dropped it 12Gb from an
osx client, and
a strange corner case. It
ought to be fine for 3.6, since I very much doubt that any real code
will hit that corner case and cause ABI problems.)
Andy Lutomirski (2):
seccomp: Make syscall skipping and nr changes more consistent
seccomp: Future-proof against silly tracers
Documentation/prctl
on x86 because the return value in
pt_regs starts out as -ENOSYS, but a silly tracer can change that.
Signed-off-by: Andy Lutomirski l...@amacapital.net
Cc: Will Drewry w...@chromium.org
---
arch/x86/include/asm/syscall.h | 11 +++
kernel/seccomp.c | 15 +++
2
on x86-64 due to the way the system call
entry works.)
- On x86-64 with vsyscall=emulate, skipped vsyscalls were buggy.
This updates the documentation accordingly.
Signed-off-by: Andy Lutomirski l...@amacapital.net
Cc: Will Drewry w...@chromium.org
---
Documentation/prctl/seccomp_filter.txt
On Wed, Jul 18, 2012 at 11:31 AM, Will Drewry w...@chromium.org wrote:
On Tue, Jul 17, 2012 at 6:19 PM, Andy Lutomirski l...@amacapital.net wrote:
This fixes two issues that could cause incompatibility between
kernel versions:
- If a tracer uses SECCOMP_RET_TRACE to select a syscall number
On Wed, Jul 18, 2012 at 11:35 AM, Will Drewry w...@chromium.org wrote:
On Tue, Jul 17, 2012 at 9:13 PM, Will Drewry w...@chromium.org wrote:
On Tue, Jul 17, 2012 at 6:19 PM, Andy Lutomirski l...@amacapital.net wrote:
Currently, if a tracer changes a syscall nr to __NR_future_enosys,
behavior
prctl(PR_REALLY_SET_TIMERSLACK, 0, 1, 0, 0) = -1, errno=22 slack=1
prctl(PR_REALLY_SET_TIMERSLACK, 1, 0, 0, 0) = 0, errno=0 slack=1
prctl(PR_REALLY_SET_TIMERSLACK, -1, 0, 0, 0) = 0, errno=0 slack=5
prctl(PR_REALLY_SET_TIMERSLACK, -2, 0, 0, 0) = -1, errno=22 slack=5
Signed-off-by: Andy
I previously reported these bugs privatley. I'm summarizing them for
the historical record. These bugs were never exploitable on a
default-configured released kernel, but some 3.8 versions are
vulnerable depending on configuration.
=== Bug 1: chroot bypass ===
It was possible for a chrooted
On Sat, Mar 30, 2013 at 12:49 PM, Pavel Machek pa...@ucw.cz wrote:
Hi!
I thought the first thing people would ask for is to atomically create a
new file and copy the old file into it (at least on local file systems).
The idea is that nothing should see an empty destination file, either
On Sat, Mar 30, 2013 at 8:52 PM, Myklebust, Trond
trond.mykleb...@netapp.com wrote:
On Sat, 2013-03-30 at 19:53 -0700, Andreas Dilger wrote:
On 2013-03-30, at 16:21, Ric Wheeler rwhee...@redhat.com wrote:
On 03/30/2013 05:57 PM, Myklebust, Trond wrote:
On Mar 30, 2013, at 5:45 PM, Pavel
On 04/03/2013 08:35 AM, Eric Dumazet wrote:
On Wed, 2013-04-03 at 17:10 +0200, Sven Joachim wrote:
On 2013-04-03 16:00 +0200, Eric Dumazet wrote:
It might be a wrong sender (application bug or bad identity), and udevd
correctly discards the incoming message.
How would I find out the
On Wed, Apr 3, 2013 at 11:43 AM, Eric Dumazet eric.duma...@gmail.com wrote:
On Wed, 2013-04-03 at 10:58 -0700, Andy Lutomirski wrote:
This sounds suspiciously like an SCM_CREDENTIALS bug triggered by a
race. There's a fix (that needs both a new version from me and a review
by someone) here
On Wed, Apr 3, 2013 at 5:47 PM, Eric W. Biederman ebied...@xmission.com wrote:
Eric Dumazet eric.duma...@gmail.com writes:
On Wed, 2013-04-03 at 17:05 -0700, Eric W. Biederman wrote:
Sven Joachim svenj...@gmx.de writes:
On 2013-04-03 00:11 +0200, Greg Kroah-Hartman wrote:
3.8-stable
On 03/13/2013 11:35 AM, Eric W. Biederman wrote:
Kees Cook keescook-f7+t8e8rja9g9huczpv...@public.gmane.org writes:
Hi,
It seem like we should block (at least) this combination. On 3.9, this
exploit works once uidmapping is added.
http://www.openwall.com/lists/oss-security/2013/03/13/10
.
With this patch, module parameters can be made explicitly optional.
This approach is IMO silly, but it's unlikely to break anything,
since I doubt that anyone needs init parameters or init environment
variables that end in a tilde.
Signed-off-by: Andy Lutomirski l...@amacapital.net
On Thu, Mar 14, 2013 at 1:29 PM, Eric W. Biederman
ebied...@xmission.com wrote:
Andy Lutomirski l...@amacapital.net writes:
On 03/13/2013 11:35 AM, Eric W. Biederman wrote:
Kees Cook keescook-f7+t8e8rja9g9huczpv...@public.gmane.org writes:
Hi,
It seem like we should block (at least
On Thu, Mar 14, 2013 at 10:03 PM, Rusty Russell ru...@rustcorp.com.au wrote:
Andy Lutomirski l...@amacapital.net writes:
Current parameter behavior is odd. Boot parameters that have values
and don't match anything become environment variables, with no
warning. Boot parameters without values
On Sun, Mar 17, 2013 at 7:24 PM, Rusty Russell ru...@rustcorp.com.au wrote:
Andy Lutomirski l...@amacapital.net writes:
On Thu, Mar 14, 2013 at 10:03 PM, Rusty Russell ru...@rustcorp.com.au
wrote:
Andy Lutomirski l...@amacapital.net writes:
Current parameter behavior is odd. Boot parameters
On Tue, Mar 19, 2013 at 8:26 PM, Lucas De Marchi
lucas.demar...@profusion.mobi wrote:
Hi Rusty,
On Mon, Mar 18, 2013 at 11:32 PM, Rusty Russell ru...@rustcorp.com.au wrote:
Andy Lutomirski l...@amacapital.net writes:
On Sun, Mar 17, 2013 at 7:24 PM, Rusty Russell ru...@rustcorp.com.au
wrote
On Tue, Mar 19, 2013 at 8:32 PM, Andy Lutomirski l...@amacapital.net wrote:
On Tue, Mar 19, 2013 at 8:26 PM, Lucas De Marchi
lucas.demar...@profusion.mobi wrote:
Hi Rusty,
On Mon, Mar 18, 2013 at 11:32 PM, Rusty Russell ru...@rustcorp.com.au
wrote:
Andy Lutomirski l...@amacapital.net
On Tue, Mar 5, 2013 at 11:07 AM, Simo s...@samba.org wrote:
On 03/05/2013 01:13 PM, J. Bruce Fields wrote:
On Mon, Mar 04, 2013 at 05:49:46PM -0500, Simo wrote:
On 03/04/2013 04:19 PM, J. Bruce Fields wrote:
On Thu, Feb 28, 2013 at 01:53:25PM -0800, Andy Lutomirski wrote:
[possible resend
On 03/04/2013 12:16 PM, Borislav Petkov wrote:
Add the end of the virtual address space to its layout documentation.
Signed-off-by: Borislav Petkov b...@alien8.de
---
Documentation/x86/x86_64/mm.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
I'd like to be able to run programs (like bash!) as nonroot but with
some capabilities granted. After all these years, it's almost, but
not quite, possible. This is because the transition rule (if root
isn't involved or NOROOT is set) is pP' = (pB' fP) | (pI' fI),
and, when execing a program
On Sun, Dec 2, 2012 at 9:21 AM, Andrew G. Morgan mor...@kernel.org wrote:
There is a fairly well written paper ;-) explaining how things are
supposed to work:
http://ols.fedoraproject.org/OLS/Reprints-2008/hallyn-reprint.pdf
The inheritable set is not intended to work the way you seem to
On Sun, Dec 2, 2012 at 2:26 PM, Andrew G. Morgan mor...@kernel.org wrote:
On Sun, Dec 2, 2012 at 10:35 AM, Andy Lutomirski l...@amacapital.net wrote:
On Sun, Dec 2, 2012 at 9:21 AM, Andrew G. Morgan mor...@kernel.org wrote:
There is a fairly well written paper ;-) explaining how things
On Sun, Dec 2, 2012 at 6:20 PM, Andrew G. Morgan mor...@kernel.org wrote:
On Sun, Dec 2, 2012 at 3:04 PM, Andy Lutomirski l...@amacapital.net wrote:
On Sun, Dec 2, 2012 at 2:26 PM, Andrew G. Morgan mor...@kernel.org wrote:
On Sun, Dec 2, 2012 at 10:35 AM, Andy Lutomirski l...@amacapital.net
-- checking /proc/self
for POLLIN will reliably detect this feature.
[1] http://lwn.net/Articles/462177/
[2] http://0pointer.de/blog/projects/plumbers-wishlist-3.html
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
fs/proc/base.c| 26 ++
include/linux
On Thu, Feb 7, 2013 at 9:27 AM, Joerg Roedel j...@8bytes.org wrote:
On Thu, Feb 07, 2013 at 08:29:42AM -0800, Andy Lutomirski wrote:
On Thu, Feb 7, 2013 at 3:33 AM, Joerg Roedel j...@8bytes.org wrote:
On Wed, Feb 06, 2013 at 07:08:24PM -0800, Andy Lutomirski wrote:
- if (x2apic_present
On 02/06/2013 10:41 PM, Martin Sustrik wrote:
When implementing network protocols in user space, one has to implement
fake user-space file descriptors to represent the sockets for the protocol.
While all the BSD socket API functionality for such descriptors may be faked
as
well
On Thu, Feb 7, 2013 at 12:11 PM, Martin Sustrik sust...@250bpm.com wrote:
On 07/02/13 20:12, Andy Lutomirski wrote:
On 02/06/2013 10:41 PM, Martin Sustrik wrote:
When implementing network protocols in user space, one has to implement
fake user-space file descriptors to represent the sockets
On Thu, Feb 7, 2013 at 9:26 PM, Martin Sustrik sust...@250bpm.com wrote:
Hi Andy,
On 08/02/13 02:03, Andy Lutomirski wrote:
There may be some
advantage to adding (later on, if needed) an option to change the
flags set in:
+ if (waitqueue_active(ctx-wqh
On 02/08/2013 01:14 PM, Josh Boyer wrote:
On Fri, Feb 8, 2013 at 4:07 PM, Matthew Garrett
matthew.garrett-05XSO3Yj/jvqt0dzr+a...@public.gmane.org wrote:
On Fri, 2013-02-08 at 13:02 -0800, Kees Cook wrote:
I don't find it unreasonable to drop all caps and lose access to
sensitive things. :)
On 02/10/2013 02:00 PM, Daniel Borkmann wrote:
If you need to compare a password or a hash value, the timing of the
comparison function can give valuable clues to the attacker. Let's
say the password is 123456 and the attacker tries abcdef. If the
comparision function fails at the first byte
On Mon, Feb 4, 2013 at 11:04 AM, Alex Williamson
alex.william...@redhat.com wrote:
On Fri, 2013-02-01 at 14:57 -0800, Andy Lutomirski wrote:
Current kernels print this on my Dell server:
[ cut here ]
WARNING: at drivers/iommu/intel_irq_remapping.c:542
On Mon, Feb 4, 2013 at 11:39 AM, Alex Williamson
alex.william...@redhat.com wrote:
On Mon, 2013-02-04 at 11:19 -0800, Andy Lutomirski wrote:
On Mon, Feb 4, 2013 at 11:04 AM, Alex Williamson
alex.william...@redhat.com wrote:
On Fri, 2013-02-01 at 14:57 -0800, Andy Lutomirski wrote:
Current
Williamson alex.william...@redhat.com
Cc: Don Zickus dzic...@redhat.com
Cc: Prarit Bhargava pra...@redhat.com
Cc: David Woodhouse dw...@infradead.org
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
This applies on top of my previous patch:
http://git.kernel.org/tip
On Wed, Feb 6, 2013 at 7:08 PM, Andy Lutomirski l...@amacapital.net wrote:
We currently report IOMMU_CAP_INTR_REMAP whenever interrupt remapping
is enabled. Users of that capability expect it to mean that remapping
is secure (i.e. compatibility format interrupts are blocked). Explicitly
On Thu, Feb 7, 2013 at 3:33 AM, Joerg Roedel j...@8bytes.org wrote:
On Wed, Feb 06, 2013 at 07:08:24PM -0800, Andy Lutomirski wrote:
- if (x2apic_present)
- WARN(1, KERN_WARNING
- Failed to enable irq remapping. You are vulnerable
to irq-injection attacks
On 01/31/2013 12:52 PM, Alex Williamson wrote:
On Thu, 2013-01-31 at 22:00 +0200, Gleb Natapov wrote:
On Thu, Jan 31, 2013 at 02:34:27PM -0500, Don Zickus wrote:
On Thu, Jan 31, 2013 at 08:52:00PM +0200, Gleb Natapov wrote:
but functional systems.
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
drivers/iommu/intel_irq_remapping.c | 36
1 file changed, 28 insertions(+), 8 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c
b/drivers/iommu/intel_irq_remapping.c
On Tue, Feb 26, 2013 at 1:02 PM, Jörn Engel jo...@logfs.org wrote:
On Mon, 25 February 2013 13:14:52 -0800, Andy Lutomirski wrote:
I thought the first thing people would ask for is to atomically create a
new file and copy the old file into it (at least on local file systems).
The idea
[possible resend -- sorry]
On 02/28/2013 07:25 AM, Pavel Shilovsky wrote:
This patchset adds support of O_DENY* flags for Linux fs layer. These flags
can be used by any application that needs share reservations to organize a
file access. VFS already has some sort of this capability - now
On Thu, Feb 14, 2013 at 2:54 PM, Andrew Morton
a...@linux-foundation.org wrote:
On Fri, 8 Feb 2013 09:11:17 +0100
Martin Sustrik sust...@250bpm.com wrote:
When implementing network protocols in user space, one has to implement
fake user-space file descriptors to represent the sockets for the
On Thu, Feb 14, 2013 at 9:24 PM, Andrew Morton
a...@linux-foundation.org wrote:
On Fri, 15 Feb 2013 04:42:27 +0100 Martin Sustrik sust...@250bpm.com wrote:
This is a non-back-compatible userspace interface change. A procfs
file which previously displayed
eventfd-count:
can
On 02/19/2013 10:21 AM, Daniel Lezcano wrote:
On 02/19/2013 07:10 PM, Thomas Gleixner wrote:
On Tue, 19 Feb 2013, Daniel Lezcano wrote:
I am working on identifying the different wakeup sources from the
interrupts and I have a question regarding the timer broadcast.
The broadcast timer is
On 02/21/2013 02:24 PM, Zach Brown wrote:
On Thu, Feb 21, 2013 at 08:50:27PM +, Myklebust, Trond wrote:
On Thu, 2013-02-21 at 21:00 +0100, Paolo Bonzini wrote:
Il 21/02/2013 15:57, Ric Wheeler ha scritto:
sendfile64() pretty much already has the right arguments for a
copyfile, however it
On Mon, Feb 25, 2013 at 1:59 PM, Myklebust, Trond
trond.mykleb...@netapp.com wrote:
On Mon, 2013-02-25 at 16:49 -0500, Ric Wheeler wrote:
On 02/25/2013 04:14 PM, Andy Lutomirski wrote:
On 02/21/2013 02:24 PM, Zach Brown wrote:
On Thu, Feb 21, 2013 at 08:50:27PM +, Myklebust, Trond wrote
On Mon, Feb 25, 2013 at 3:28 PM, Myklebust, Trond
trond.mykleb...@netapp.com wrote:
On Mon, 2013-02-25 at 14:16 -0800, Andy Lutomirski wrote:
On Mon, Feb 25, 2013 at 1:59 PM, Myklebust, Trond
trond.mykleb...@netapp.com wrote:
On Mon, 2013-02-25 at 16:49 -0500, Ric Wheeler wrote:
On 02/25
still work, though (I
suspect it would with some care).
[1] https://lkml.org/lkml/2012/4/25/150
--Andy
Thanks
-john
Cc: Tony Luck tony.l...@intel.com
Cc: Paul Mackerras pau...@samba.org
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Andy Lutomirski l...@amacapital.net
Cc: Martin
On Mon, Sep 17, 2012 at 5:20 PM, John Stultz john.stu...@linaro.org wrote:
On 09/17/2012 04:49 PM, Andy Lutomirski wrote:
On Mon, Sep 17, 2012 at 3:04 PM, John Stultz john.stu...@linaro.org
wrote:
Anyway, I'd greatly appreciate any thoughts or feedback on this
approach.
I haven't looked
On Tue, Sep 18, 2012 at 11:02 AM, Richard Cochran
richardcoch...@gmail.com wrote:
On Mon, Sep 17, 2012 at 05:20:41PM -0700, John Stultz wrote:
On 09/17/2012 04:49 PM, Andy Lutomirski wrote:
2. There's nothing vsyscall-specific about the code in
vclock_gettime.c. In fact, the VVAR macro should
On Tue, Sep 18, 2012 at 9:50 PM, Richard Cochran
richardcoch...@gmail.com wrote:
On Tue, Sep 18, 2012 at 11:29:50AM -0700, John Stultz wrote:
I believe its mostly historical, but on some architectures that
history has become an established ABI, making it technical.
Fine, but what do you mean
On Wed, Sep 19, 2012 at 10:54 AM, John Stultz john.stu...@linaro.org wrote:
On 09/19/2012 10:03 AM, Richard Cochran wrote:
On Wed, Sep 19, 2012 at 09:31:35AM -0700, John Stultz wrote:
With powerpc, there is no arch specific kernel code involved, its
just a data structure the kernel exports
On Wed, Sep 19, 2012 at 1:50 PM, Luck, Tony tony.l...@intel.com wrote:
Does anything except the vDSO actually use the vDSO data page? It's
mapped as part of the vDSO image (i.e. at a non-constant address), and
it's not immediate obvious how userspace would locate that page.
Just for
[grr. why does gmane scramble addresses?]
On 09/13/2012 01:58 PM, Tejun Heo wrote:
6. Multiple hierarchies
Apart from the apparent whness of it (I think I talked about
that enough the last time[1]), there's a basic problem when more
than one controllers interact - it's
On Thu, Sep 20, 2012 at 7:31 AM, Steven Rostedt rost...@goodmis.org wrote:
On Mon, 2012-09-17 at 16:49 -0700, Andy Lutomirski wrote:
I haven't looked in any great detail, but the approach looks sensible
and should slow down the vsyscall code.
That being said, as long as you're playing
On Thu, Sep 20, 2012 at 11:26 AM, Tejun Heo t...@kernel.org wrote:
Hello,
On Wed, Sep 19, 2012 at 06:33:15PM -0700, Andy Lutomirski wrote:
[grr. why does gmane scramble addresses?]
You can append /raw to the message url and see the raw mssage.
http://article.gmane.org
On Tue, Jul 17, 2012 at 4:19 PM, Andy Lutomirski l...@amacapital.net wrote:
Currently, if a tracer changes a syscall nr to __NR_future_enosys,
behavior will differ between kernels that know about
__NR_future_enosys (and return -ENOSYS) and older kernels (which
return the value from pt_regs
On Tue, Jul 17, 2012 at 4:19 PM, Andy Lutomirski l...@amacapital.net wrote:
This fixes two issues that could cause incompatibility between
kernel versions:
- If a tracer uses SECCOMP_RET_TRACE to select a syscall number
higher than the largest known syscall, emulate the unknown
One of my disks went out to lunch for a while. Logs below.
Which one is it? The only useful thing in /sys/class/ata_port/ata4 is
the device symlink, which points at
/sys/devices/pci:00/:00:1f.2/ata4. That, in turn, has an
ata_port directory (contains nothing I don't already know) and a
On Thu, Aug 30, 2012 at 1:49 AM, Bjoern Franke b...@nord-west.org wrote:
Am Mittwoch, den 29.08.2012, 21:38 -0700 schrieb Andy Lutomirski:
One of my disks went out to lunch for a while. Logs below.
dmesg | grep ata4
for instance with ata1:
[root@ostrea][/]# dmesg | grep ata1
ata1.00: ATA
On Thu, Aug 30, 2012 at 8:15 AM, Tim Nufire linux_ide_...@ibink.com wrote:
I'm not sure if there is a better way, but on Debian 5 Squeeze I look at
the contents of the directory /dev/disk/by-path/
ls -l /dev/disk/by-path/
total 0
lrwxrwxrwx 1 root root 10 2012-08-08 14:42
On Thu, Aug 30, 2012 at 9:14 AM, Jan Engelhardt jeng...@inai.de wrote:
On Thursday 2012-08-30 06:38, Andy Lutomirski wrote:
One of my disks went out to lunch for a while. Logs below.
[784786.047673] ata4.00: exception Emask 0x10 SAct 0x7800 SErr 0x0
action 0x6 frozen
Which one
On Fri, Aug 10, 2012 at 1:58 PM, Colin Walters walt...@verbum.org wrote:
Hi,
This is the release of linux-user-chroot 2012.2. The major change now
is that it makes use of Andy's new PR_SET_NO_NEW_PRIVS. This doesn't
close any security hole I'm aware of - our previous use of the MS_NOSUID
0506
It looks like md isn't recognizing that I'm writing whole stripes when
I'm in O_DIRECT mode.
--Andy
--
Andy Lutomirski
AMA Capital Management, LLC
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
Ubuntu's 3.2.0-27-generic. I can test on a newer kernel tomorrow.
--Andy
On Tue, Aug 14, 2012 at 6:07 PM, kedacomkernel kedacomker...@gmail.com wrote:
On 2012-08-15 08:49 Andy Lutomirski l...@amacapital.net Wrote:
If I do:
# dd if=/dev/zero of=/dev/md0p1 bs=8M
then iostat -m 5 says:
avg-cpu
On Wed, Aug 15, 2012 at 4:50 AM, John Robinson
john.robin...@anonymous.org.uk wrote:
On 15/08/2012 01:49, Andy Lutomirski wrote:
If I do:
# dd if=/dev/zero of=/dev/md0p1 bs=8M
[...]
It looks like md isn't recognizing that I'm writing whole stripes when
I'm in O_DIRECT mode.
I see your
On Wed, Aug 15, 2012 at 3:00 PM, Stan Hoeppner s...@hardwarefreak.com wrote:
On 8/15/2012 12:57 PM, Andy Lutomirski wrote:
On Wed, Aug 15, 2012 at 4:50 AM, John Robinson
john.robin...@anonymous.org.uk wrote:
On 15/08/2012 01:49, Andy Lutomirski wrote:
If I do:
# dd if=/dev/zero of=/dev
On Wed, Aug 15, 2012 at 4:50 PM, Stan Hoeppner s...@hardwarefreak.com wrote:
On 8/15/2012 5:10 PM, Andy Lutomirski wrote:
On Wed, Aug 15, 2012 at 3:00 PM, Stan Hoeppner s...@hardwarefreak.com
wrote:
On 8/15/2012 12:57 PM, Andy Lutomirski wrote:
On Wed, Aug 15, 2012 at 4:50 AM, John Robinson
On 08/01/2012 03:10 PM, Meredydd Luff wrote:
+#ifndef sys_execveat
+asmlinkage long sys_execveat(int dfd, const char __user *filename,
+ const char __user *const __user *argv,
+ const char __user *const __user *envp,
+
On Thu, Aug 2, 2012 at 9:36 PM, James Morris jmor...@namei.org wrote:
On Wed, 1 Aug 2012, Andy Lutomirski wrote:
This fixes two issues that could cause incompatibility between
kernel versions:
- If a tracer uses SECCOMP_RET_TRACE to select a syscall number
higher than the largest known
[ 579.919424] [8109a1ee] sys_init_module+0xbe/0x230
[ 579.919430] [815083d2] system_call_fastpath+0x16/0x1b'
insmod is taking 100% cpu.
Is there anything I can do to debug this? I don't really need
mgag200, since I do pretty much everything via serial console.
--Andy
--
Andy
On Thu, Aug 23, 2012 at 4:22 PM, Dave Airlie airl...@gmail.com wrote:
On Fri, Aug 24, 2012 at 7:51 AM, Andy Lutomirski l...@amacapital.net wrote:
mgag200 hangs like this on startup, on a Dell PowerEge 12g box. The
serial console says:
You can apply this
https://patchwork.kernel.org/patch
on x86-64 due to the way the system call
entry works.)
- On x86-64 with vsyscall=emulate, skipped vsyscalls were buggy.
This updates the documentation accordingly.
Signed-off-by: Andy Lutomirski l...@amacapital.net
Acked-by: Will Drewry w...@chromium.org
---
Changes from last time: reordered
On Thu, Aug 2, 2012 at 7:32 AM, Will Drewry w...@chromium.org wrote:
On Thu, Jul 26, 2012 at 10:41 AM, Andy Lutomirski l...@amacapital.net wrote:
On Tue, Jul 17, 2012 at 4:19 PM, Andy Lutomirski l...@amacapital.net wrote:
Currently, if a tracer changes a syscall nr to __NR_future_enosys
On 07/22/2012 05:14 AM, Jiri Olsa wrote:
Adding copy_from_user_nmi_nochk that provides the best effort
copy regardless the requesting size crossing the task boundary.
This is going to be useful for stack dump we need in post
DWARF CFI based unwind, where we have predefined size of
the user
Giacomo Catenazzi wrote:
And to demostrate that Linus is not the only person
with this view, I copy some paragraphs from C99 rationale
(you can find standard, rationale and other documents
in http://clc-wiki.net/wiki/C_standardisation:ISO )
Page 75 of C99 rationale:
Type qualifiers were
Giacomo Catenazzi wrote:
And to demostrate that Linus is not the only person
with this view, I copy some paragraphs from C99 rationale
(you can find standard, rationale and other documents
in http://clc-wiki.net/wiki/C_standardisation:ISO )
Page 75 of C99 rationale:
Type qualifiers were
of trouble even reproducing it on 3.6.
Apparently I haven't hid the magic combination yet. I'll give it
another try soon.
--
Andy Lutomirski
AMA Capital Management, LLC
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On Tue, Dec 4, 2012 at 5:54 AM, Serge E. Hallyn se...@hallyn.com wrote:
Quoting Andy Lutomirski (l...@amacapital.net):
d) If I really wanted, I could emulate execve without actually doing
execve, and capabilities would be inherited.
If you could modify the executable properties
On Wed, Dec 5, 2012 at 1:05 PM, Serge Hallyn serge.hal...@canonical.com wrote:
Quoting Andy Lutomirski (l...@amacapital.net):
On Tue, Dec 4, 2012 at 5:54 AM, Serge E. Hallyn se...@hallyn.com wrote:
Quoting Andy Lutomirski (l...@amacapital.net):
d) If I really wanted, I could emulate execve
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
Documentation/security/capabilities.txt | 161
1 file changed, 161 insertions(+)
create mode 100644 Documentation/security/capabilities.txt
diff --git a/Documentation/security/capabilities.txt
b
On Fri, Dec 7, 2012 at 9:07 AM, Andrew G. Morgan mor...@kernel.org wrote:
I'm still missing something with the problem definition.
So far if I follow the discussion we have determined that inheritance
as implemented is OK except for the fact that giving user an
inheritable pI bit which gives
On Fri, Dec 7, 2012 at 11:21 AM, Serge Hallyn
serge.hal...@canonical.com wrote:
Quoting Andy Lutomirski (l...@amacapital.net):
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
Documentation/security/capabilities.txt | 161
1 file changed, 161
On Fri, Dec 7, 2012 at 5:10 PM, Rob Landley r...@landley.net wrote:
On 12/07/2012 01:32:18 PM, Andy Lutomirski wrote:
On Fri, Dec 7, 2012 at 11:21 AM, Serge Hallyn
serge.hal...@canonical.com wrote:
Quoting Andy Lutomirski (l...@amacapital.net):
Signed-off-by: Andy Lutomirski l
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