On Mon, Apr 08, 2019 at 11:31:31AM +1000, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the audit tree got conflicts in:
>
> arch/mips/kernel/ptrace.c
> kernel/seccomp.c
>
> between commit:
>
> b35f549df1d7 ("syscalls: Remove start and number from
> syscall_get_argume
: Richard Kuo
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-hexa...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Richard, this patch is waiting for ACK since November.
Notes:
v9: unchanged
v8: moved syscall_get_arch to separate audit
.
Reported-by: kbuild test robot
Fixes: 1932fbe36e02 ("nds32: System calls handling")
Cc: Greentime Hu
Cc: Vincent Chen
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Signed-off-by: Dmitry V. Levin
---
Dear nds32 maintainers, this fix is waiti
-by: Paul Burton
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Ralf Baechle
Cc: James Hogan
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-m...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v9: unchanged
v8: unchanged
v7: added Acked-by
v6: unchanged
v5
-by: Helge Deller # parisc
Cc: James E.J. Bottomley
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-par...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v9: unchanged
v8: added Acked-by
v7: unchanged
v6: unchanged
v5
el exceeds the size
specified by "addr" argument, the output is truncated.
Co-authored-by: Dmitry V. Levin
Reviewed-by: Oleg Nesterov
Reviewed-by: Kees Cook
Cc: Andy Lutomirski
Cc: Eugene Syromyatnikov
Cc: linux-...@vger.kernel.org
Cc: strace-de...@lists.strace.io
Signed-off
Check whether PTRACE_GET_SYSCALL_INFO semantics implemented in the kernel
matches userspace expectations.
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: Shuah Khan
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: linux-kselft...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v9
On Mon, Apr 08, 2019 at 11:51:45AM -0600, shuah wrote:
> On 4/8/19 11:42 AM, Dmitry V. Levin wrote:
> > Check whether PTRACE_GET_SYSCALL_INFO semantics implemented in the kernel
> > matches userspace expectations.
> >
> > Cc: Oleg Nesterov
> > Cc: Andy Lutom
On Sat, Feb 09, 2019 at 01:22:19AM +0300, Dmitry V. Levin wrote:
> On Thu, Jan 17, 2019 at 03:34:44PM -0500, Richard Guy Briggs wrote:
> > On 2019-01-09 15:40, Dmitry V. Levin wrote:
> > > syscall_get_arch() is required to be implemented on all architectures in
> > >
-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Yoshinori Sato
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: uclinux-h8-de...@lists.sourceforge.jp
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/h8300
PTRACE_GET_SYSCALL_INFO request.
Acked-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: Richard Kuo
Cc: linux-hexa...@vger.kernel.org
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch
-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Richard Kuo
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-hexa...@vger.kernel.org
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/hexagon/include/asm
request.
Acked-by: Paul Moore
Cc: Greentime Hu
Cc: Vincent Chen
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/nds32/include/asm
-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Greentime Hu
Cc: Vincent Chen
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/nds32/include/asm/syscall.h | 9
-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Ley Foon Tan
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: nios2-...@lists.rocketboards.org
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/nios2/include/asm
PTRACE_GET_SYSCALL_INFO request.
Acked-by: Paul Moore
Cc: Guan Xuetao
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/unicore32/include/asm/elf.h | 3
-by: Paul Moore
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Guan Xuetao
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
This is just a gentle ping, the patch is unchanged.
arch/unicore32/include/asm/syscall.h | 12
Apparently, and
could not be included into the same
compilation unit because of a cut-and-paste typo in the former header.
Fixes: 12f7a505331e6 ("netfilter: add user-space connection tracking helper
infrastructure")
Cc: # v3.6
Signed-off-by: Dmitry V. Levin
---
include/uapi/linux
_exit(0);
err(1, "wait");
}
return !WIFEXITED(status) || WEXITSTATUS(status) != 0;
}
EOF
$ sh -c ./a.out
current: 10001, parent: 1, fork returned: 10002
current: 1, parent: 0, fork returned: 10001
Cc: Eric W. Biederman
Cc: sta...@vger.kernel.org
Signed-off-b
On Mon, Jul 27, 2020 at 05:36:44PM -0400, Peilin Ye wrote:
> ptrace_get_syscall_info() is copying uninitialized stack memory to
> userspace due to the compiler not initializing holes in statically
> allocated structures. Fix it by initializing `info` with memset().
>
> Cc: sta...@vger.kernel.org
>
gt; doing memset() on `info`. (Suggested by Dmitry V. Levin
> )
>
> Reference: https://lwn.net/Articles/417989/
>
> $ # before:
> $ pahole -C "ptrace_syscall_info" kernel/ptrace.o
> struct ptrace_syscall_info {
> __u8
syscall_info`.
>
> Cc: sta...@vger.kernel.org
> Fixes: 201766a20e30 ("ptrace: add PTRACE_GET_SYSCALL_INFO request")
> Suggested-by: Dan Carpenter
> Signed-off-by: Peilin Ye
> ---
> Change in v3:
> - Remove unnecessary `__aligned__` attribute. (Suggested
> }
>
> Tested on v5.10 on rx3600 machine (ia64 9040 CPU).
>
> CC: linux-i...@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> CC: Andrew Morton
> Reported-by: Dmitry V. Levin
> Bug: https://bugs.gentoo.org/769614
> Signed-off-by: Sergei Trofimovich
> ---
On Wed, Mar 03, 2021 at 03:30:19PM +0100, Oleg Nesterov wrote:
> On 03/02, Sergei Trofimovich wrote:
> >
> > > --- a/arch/ia64/include/asm/syscall.h
> > > +++ b/arch/ia64/include/asm/syscall.h
> > > @@ -32,7 +32,7 @@ static inline void syscall_rollback(struct task_struct
> > > *task,
> > > static
dler already enforces locals=0 and fixes `break`.
>
> Tested on v5.10 on rx3600 machine (ia64 9040 CPU).
>
> CC: Oleg Nesterov
> CC: linux-i...@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> CC: Andrew Morton
> Reported-by: Dmitry V. Levin
> Bug: https://bu
Hi,
On Tue, Mar 30, 2021 at 12:30:52PM +1300, Chris Packham wrote:
> Hi,
>
> I've come over from https://github.com/strace/strace/issues/177
> there's a bit of context there.
>
> Crosstool-ng has hit a problem when building a recent enough version
> of strace in a configuration that uses musl li
current: 10002, parent: 10001, fork returned: 10001
current: 10001, parent: 1, fork returned: 10003
current: 1, parent: 0, fork returned: 10001
This bug was found by strace test suite.
Cc: Eric W. Biederman
Cc: sta...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
v2: Replaced ta
On Mon, Feb 22, 2021 at 11:04:43AM +0100, Piotr Figiel wrote:
[...]
> --- a/include/uapi/linux/ptrace.h
> +++ b/include/uapi/linux/ptrace.h
> @@ -102,6 +102,14 @@ struct ptrace_syscall_info {
> };
> };
>
> +#define PTRACE_GET_RSEQ_CONFIGURATION0x420f
> +
> +struct ptrace_rseq_confi
On Mon, Feb 22, 2021 at 09:53:10AM -0500, Mathieu Desnoyers wrote:
> - On Feb 22, 2021, at 6:57 AM, Dmitry V. Levin l...@altlinux.org wrote:
> > On Mon, Feb 22, 2021 at 11:04:43AM +0100, Piotr Figiel wrote:
[...]
> >> +#ifdef CONFIG_RSEQ
> >> +static long ptrace_ge
Date: Wed, 17 Oct 2012 20:29:22 +0400
Starting with commit v3.2-rc4-1-g02125a8, seq_path_root() no longer
changes the value of root.
Starting with commit v3.2-rc7-104-g8c9379e, some arguments of seq_path()
and seq_path_root() are const.
Signed-off-by: Dmitry V. Levin
Acked-by: Rob Landley
esult, the temporary variable "root" in show_mountinfo() that
holds a copy of struct path root is no longer needed.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 73
Date: Wed, 17 Oct 2012 20:29:55 +0400
Change show_vfsmnt() and show_vfsstat() to show mountpoints relative
to the root directory and skip mountpoints outside of chroot jail
the same way as show_mountinfo() does.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 13 +++--
1 file
On Mon, Sep 29, 2014 at 07:32:22PM +0100, Al Viro wrote:
> On Mon, Sep 29, 2014 at 10:05:23PM +0400, Dmitry V. Levin wrote:
> > Date: Wed, 17 Oct 2012 20:29:55 +0400
> >
> > Change show_vfsmnt() and show_vfsstat() to show mountpoints relative
> > to the root directory a
On Mon, Sep 29, 2014 at 08:33:29PM +0100, Al Viro wrote:
> On Mon, Sep 29, 2014 at 10:43:33PM +0400, Dmitry V. Levin wrote:
> > On Mon, Sep 29, 2014 at 07:32:22PM +0100, Al Viro wrote:
> > > On Mon, Sep 29, 2014 at 10:05:23PM +0400, Dmitry V. Levin wrote:
> > > > D
On Mon, Sep 29, 2014 at 10:20:57PM +0100, Al Viro wrote:
> On Tue, Sep 30, 2014 at 12:26:59AM +0400, Dmitry V. Levin wrote:
>
> > > Again, we do not break userland.
> >
> > Occasionally, we do. If you say there was no chroot prefix removal in the
> > kerne
Similar to preadv and pwritev, preadv2 and pwritev2 need compat entries
in the 32-bit syscall table.
This bug was found by strace test suite.
Fixes: 4babf2c5efb7 ("x86: wire up preadv2 and pwritev2")
Signed-off-by: Dmitry V. Levin
---
arch/x86/entry/syscalls/syscall_32.tbl | 4 ++
On Wed, May 11, 2016 at 12:14:11PM +0200, Thomas Gleixner wrote:
> On Wed, 11 May 2016, Dmitry V. Levin wrote:
> > Similar to preadv and pwritev, preadv2 and pwritev2 need compat entries
> > in the 32-bit syscall table.
>
> So this is 2016 and we added a syscalls which r
On Thu, May 12, 2016 at 09:30:37AM +0200, Christoph Hellwig wrote:
> On Wed, May 11, 2016 at 11:48:17AM +0300, Dmitry V. Levin wrote:
> > Similar to preadv and pwritev, preadv2 and pwritev2 need compat entries
> > in the 32-bit syscall table.
> >
> > This bug was
trace test suite.
Cc: sta...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
arch/parisc/kernel/syscall.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index c976ebf..57b4836 100644
--- a/arch/parisc/kernel/sysca
On Tue, Apr 26, 2016 at 10:45:11PM -0400, Mike Frysinger wrote:
> On 27 Apr 2016 04:56, Dmitry V. Levin wrote:
> > Do not load one entry beyond the end of the syscall table when the
> > syscall number of a traced process equals to __NR_Linux_syscalls.
> > Similar bug with
Date: Thu, 19 Mar 2015 11:10:54 +
Explicitly check show_devname method return code and bail out in case
of an error. This fixes regression introduced by commit 9d4d65748a5c.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs
As err variable is now always checked right after the first assignment,
its initialization is redundant and could be safely removed.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/proc_namespace.c b/fs
Check err variable right after each assignment. This change makes
initialization of err redundant, so remove the initialization.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 20 +++-
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/fs/proc_namespace.c
As err variable is now always checked right after each assignment, its
initialization is redundant and could be safely removed. For the same
reason, the last check of err is also redundant and could be removed as
well.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 5 ++---
1 file
/tests/restart_syscall.test
Reported-and-tested-by: Elvira Khabirova
Signed-off-by: Dmitry V. Levin
Cc: sta...@vger.kernel.org
---
arch/x86/kernel/signal.c | 17 ++---
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
Date: Wed, 18 Nov 2015 21:09:45 +
As err variable is now always checked right after each assignment, its
initialization is redundant and could be safely removed. For the same
reason, the last check of err is also redundant and could be removed as
well.
Signed-off-by: Dmitry V. Levin
Wed, 18 Nov 2015 21:08:33 +
Check err variable right after each assignment. This change makes
initialization of err redundant, so remove the initialization.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 20 +++-
1 file changed, 11 insertions(+), 9 deletions
Date: Wed, 18 Nov 2015 21:07:10 +
As err variable is now always checked right after the first assignment,
its initialization is redundant and could be safely removed.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
Date: Thu, 19 Mar 2015 11:10:54 +
Explicitly check show_devname method return code and bail out in case
of an error. This fixes regression introduced by commit 9d4d65748a5c.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs
On Mon, Dec 07, 2015 at 03:22:06PM -0800, Andy Lutomirski wrote:
> [not real reply because I'm using a bad internet connection right now
> and I'm not set up with my usual Gmane reply hack right now]
>
> The new code is (whitespace-damaged):
>
> static inline unsigned long get_nr_restart_syscall(
According to arch/sh/kernel/syscalls_64.S and common sense,
__NR_fgetxattr has to be defined to 259, but it doesn't.
Instead, it's defined to 269, which is of course used
by another syscall, __NR_sched_setaffinity in this case.
This bug was found by strace test suite.
Signed-off-by
ts
to incorrect comparison on 64-bit architectures for inode numbers
greater than INT_MAX.
This bug was found by strace test suite.
Signed-off-by: Dmitry V. Levin
Cc:
---
net/unix/diag.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/unix/diag.c b/net/unix/diag.c
index c5
Date: Thu, 19 Mar 2015 11:10:54 +
Explicitly check show_devname method return code and bail out in case
of an error. This fixes regression introduced by commit 9d4d65748a5c.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs
> ignored by userspace.
Acked-by: Dmitry V. Levin
--
ldv
--
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Please read the FAQ at http://www.tux.org/lkml/
On Fri, Feb 06, 2015 at 12:07:03PM -0800, Kees Cook wrote:
> On Fri, Feb 6, 2015 at 11:32 AM, Andy Lutomirski wrote:
> > On Fri, Feb 6, 2015 at 11:23 AM, Kees Cook wrote:
[...]
> >> And an unrelated thought:
> >>
> >> 3) Can't we find some way to fix the inability of a ptracer to
> >> distinguish
On Fri, Feb 06, 2015 at 05:07:41PM -0800, Kees Cook wrote:
> On Fri, Feb 6, 2015 at 3:17 PM, Dmitry V. Levin wrote:
> > On Fri, Feb 06, 2015 at 12:07:03PM -0800, Kees Cook wrote:
> >> On Fri, Feb 6, 2015 at 11:32 AM, Andy Lutomirski
> >> wrote:
> >> > On
Hi,
On Fri, Sep 05, 2014 at 03:13:54PM -0700, Andy Lutomirski wrote:
> This splits syscall_trace_enter into syscall_trace_enter_phase1 and
> syscall_trace_enter_phase2. Only phase 2 has full pt_regs, and only
> phase 2 is permitted to modify any of pt_regs except for orig_ax.
This breaks ptrace,
On Thu, Feb 05, 2015 at 01:27:16PM -0800, Kees Cook wrote:
> On Thu, Feb 5, 2015 at 1:19 PM, Dmitry V. Levin wrote:
> > Hi,
> >
> > On Fri, Sep 05, 2014 at 03:13:54PM -0700, Andy Lutomirski wrote:
> >> This splits syscall_trace_enter into
On Thu, Feb 05, 2015 at 03:12:39PM -0800, Kees Cook wrote:
> On Thu, Feb 5, 2015 at 1:52 PM, Andy Lutomirski wrote:
> > On Thu, Feb 5, 2015 at 1:40 PM, Dmitry V. Levin wrote:
> >> On Thu, Feb 05, 2015 at 01:27:16PM -0800, Kees Cook wrote:
> >>> On Thu, Feb 5, 20
On Thu, Feb 05, 2015 at 04:09:06PM -0800, Andy Lutomirski wrote:
> On Thu, Feb 5, 2015 at 3:49 PM, Kees Cook wrote:
> > On Thu, Feb 5, 2015 at 3:39 PM, Dmitry V. Levin wrote:
[...]
> >> There is a clear difference: before these changes, SECCOMP_RET_ERRNO used
> >>
.
Signed-off-by: Dmitry V. Levin
Acked-by: Rob Landley
---
Documentation/filesystems/seq_file.txt | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/Documentation/filesystems/seq_file.txt
b/Documentation/filesystems/seq_file.txt
index b797ed3..9de4303 100644
--- a
esult, the temporary variable "root" in show_mountinfo() that
holds a copy of struct path root is no longer needed.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 73
As we already show mountpoints relative to the root directory, thanks
to the change made back in 2000, change show_vfsmnt() and show_vfsstat()
to skip out-of-root mountpoints the same way as show_mountinfo() does.
Signed-off-by: Dmitry V. Levin
---
fs/proc_namespace.c | 13 +++--
1 file
On Fri, Dec 27, 2013 at 02:14:24PM -0800, H.J. Lu wrote:
> Both x32 and x86-64 use the same struct mq_attr for system calls. But
> x32 long is 32-bit. This patch replaces long with __kernel_long_t in
> struct mq_attr.
>
> Signed-off-by: H.J. Lu
> ---
> include/uapi/linux/mqueue.h | 10 +
PTRACE_GET_SYSCALL_INFO request.
Acked-by: Paul Moore
Cc: Guan Xuetao
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-au...@redhat.com
Signed-off-by: Dmitry V. Levin
---
Notes:
v2: unchanged
arch/unicore32/include/asm/elf.h | 3 +--
include/uapi/linux/elf
On Tue, Mar 19, 2019 at 12:19:57PM -0700, Andrei Vagin wrote:
> There are a few system calls (pselect, ppoll, etc) which replace a task
> sigmask while they are running in a kernel-space
>
> When a task calls one of these syscalls, the kernel saves a current
> sigmask in task->saved_sigmask and se
re's no sane reason to accept them.
>
> * kernel/fork.c (copy_clone_args_from_user): Fail with -EINVAL if
> args.exit_signal converted to unsigned int is not equal to the original
> value.
>
> Signed-off-by: Eugene Syromiatnikov
Reviewed-by: Dmitry V. Levin
--
ldv
On Wed, Sep 11, 2019 at 04:54:47PM +0200, Christian Brauner wrote:
> On Wed, Sep 11, 2019 at 03:32:13PM +0100, Eugene Syromiatnikov wrote:
> > On Wed, Sep 11, 2019 at 04:16:36PM +0200, Christian Brauner wrote:
> > > On Wed, Sep 11, 2019 at 03:52:36PM +0200, Christian Brauner wrote:
> > > > On Wed,
On Wed, Sep 18, 2019 at 10:33:09AM -0700, Kees Cook wrote:
> On Wed, Sep 18, 2019 at 11:15:12AM +0200, Tyler Hicks wrote:
> > On 2019-09-18 10:48:31, Christian Brauner wrote:
> > > Add tw missing ptrace ifdefines to avoid compilation errors on systems
> > > that do not provide PTRACE_EVENTMSG_SYSCA
On Thu, Sep 19, 2019 at 09:55:30AM -0700, Kees Cook wrote:
> On Thu, Sep 19, 2019 at 01:42:51PM +0300, Dmitry V. Levin wrote:
> > On Wed, Sep 18, 2019 at 10:33:09AM -0700, Kees Cook wrote:
> > > This is actually fixed in -next already (and, yes, with the Fixes line
> &g
Hi,
On Tue, Jun 25, 2019 at 04:37:08PM +0200, Christoph Hellwig wrote:
> The sparc64 code is mostly equivalent to the generic one, minus various
> bugfixes and two arch overrides that this patch adds to pgtable.h.
>
> Signed-off-by: Christoph Hellwig
> Reviewed-by: Khalid Aziz
> ---
> arch/spa
On Wed, Jul 17, 2019 at 03:04:56PM -0700, Linus Torvalds wrote:
> On Wed, Jul 17, 2019 at 2:59 PM Dmitry V. Levin wrote:
> >
> > So this ended up as commit 7b9afb86b6328f10dc2cad9223d7def12d60e505
> > (thanks to Anatoly for bisecting) and introduced a regression:
> >
On Thu, Jan 17, 2019 at 03:34:44PM -0500, Richard Guy Briggs wrote:
> On 2019-01-09 15:40, Dmitry V. Levin wrote:
> > syscall_get_arch() is required to be implemented on all architectures in
> > order
> > to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request:
.
Reported-by: kbuild test robot
Fixes: 1932fbe36e02 ("nds32: System calls handling")
Acked-by: Greentime Hu
Cc: Vincent Chen
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Signed-off-by: Dmitry V. Levin
---
Notes:
v11: unchanged
v10: a
Check whether PTRACE_GET_SYSCALL_INFO semantics implemented in the kernel
matches userspace expectations.
Acked-by: Shuah Khan
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: linux-kselft...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes
el exceeds the size
specified by "addr" argument, the output is truncated.
Co-authored-by: Dmitry V. Levin
Reviewed-by: Oleg Nesterov
Reviewed-by: Kees Cook
Cc: Andy Lutomirski
Cc: Eugene Syromyatnikov
Cc: linux-...@vger.kernel.org
Cc: strace-de...@lists.strace.io
Signed-off
-by: Michael Ellerman
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linuxppc-...@lists.ozlabs.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v11: added Acked-by from
https://lore.kernel.org/lkml
-by: Helge Deller # parisc
Cc: James E.J. Bottomley
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-par...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v11: unchanged
v10: unchanged
v9: unchanged
v8: added Acked-by from
: Richard Kuo
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-hexa...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Richard, this patch is waiting for ACK since November.
Notes:
v11: unchanged
v10: unchanged
v9: unchanged
v8
-by: Paul Burton
Cc: Elvira Khabirova
Cc: Eugene Syromyatnikov
Cc: Ralf Baechle
Cc: James Hogan
Cc: Oleg Nesterov
Cc: Andy Lutomirski
Cc: linux-m...@vger.kernel.org
Signed-off-by: Dmitry V. Levin
---
Notes:
v11: unchanged
v10: unchanged
v9: unchanged
v8: unchanged
v7
Hi Baruch, Geert,
Could you share these findings with bpf and netdev people, please?
On Fri, May 03, 2019 at 02:16:04PM +0200, Geert Uytterhoeven wrote:
> Hi Baruch,
>
> On Fri, May 3, 2019 at 1:52 PM Baruch Siach wrote:
> > On Fri, May 03 2019, Geert Uytterhoeven wrote:
> > > On Fri, May 3, 20
On Mon, Apr 01, 2019 at 09:41:08AM -0400, Steven Rostedt wrote:
> From: "Dmitry V. Levin"
>
> C-SKY syscall arguments are located in orig_a0,a1,a2,a3,regs[0],regs[1]
> fields of struct pt_regs.
>
> Due to an off-by-one bug and a bug in pointer arithmetic
> sysc
On Mon, Apr 01, 2019 at 09:41:07AM -0400, Steven Rostedt wrote:
> From: "Dmitry V. Levin"
>
> RISC-V syscall arguments are located in orig_a0,a1..a5 fields
> of struct pt_regs.
>
> Due to an off-by-one bug and a bug in pointer arithmetic
> syscall_get_argume
instead.
Fixes: 4859bfca11c7d ("csky: System Call")
Cc: Steven Rostedt
Cc: Ingo Molnar
Cc: Kees Cook
Cc: Andy Lutomirski
Cc: Will Drewry
Cc: sta...@vger.kernel.org # v4.20+
Signed-off-by: Dmitry V. Levin
---
arch/csky/include/asm/syscall.h | 10 ++
1 file changed, 6 insert
: e2c0cdfba7f69 ("RISC-V: User-facing API")
Cc: Steven Rostedt
Cc: Ingo Molnar
Cc: Kees Cook
Cc: Andy Lutomirski
Cc: Will Drewry
Cc: linux-ri...@lists.infradead.org
Cc: sta...@vger.kernel.org # v4.15+
Signed-off-by: Dmitry V. Levin
---
arch/riscv/include/asm/syscall.h | 12 +++---
On Fri, Mar 29, 2019 at 01:56:35PM -0400, Steven Rostedt wrote:
> On Fri, 29 Mar 2019 18:52:18 +0100
> David Abdurachmanov wrote:
>
> > I have alternative version posted in December part of SECCOMP
> > patchset which is based on arm64 implementation.
> >
> > http://lists.infradead.org/pipermail/
On Fri, Mar 29, 2019 at 01:15:14PM -0400, Steven Rostedt wrote:
> On Fri, 29 Mar 2019 20:12:21 +0300
> "Dmitry V. Levin" wrote:
>
> > RISC-V syscall arguments are located in orig_a0,a1..a5 fields
> > of struct pt_regs.
> >
> > Due to an off
On Fri, Mar 29, 2019 at 11:12:18AM -0700, Linus Torvalds wrote:
> On Fri, Mar 29, 2019 at 10:40 AM Steven Rostedt wrote:
> >
> > I'll keep it around for now, but this should go as a warning to Dmitry,
> > to get something using it soon, or they may be dropped.
>
> I don't think _that_ is the argu
On Wed, Dec 12, 2018 at 11:55:16AM +0300, Dmitry V. Levin wrote:
> On Mon, Dec 10, 2018 at 04:30:25PM +0300, Dmitry V. Levin wrote:
> > On Mon, Dec 10, 2018 at 02:06:28PM +0100, Geert Uytterhoeven wrote:
> > > On Mon, Dec 10, 2018 at 1:41 PM Dmitry V. Levin wrote:
> > >
("fork: add clone3")
Bisected-and-tested-by: Anatoly Pugachev
Signed-off-by: Dmitry V. Levin
---
arch/x86/ia32/sys_ia32.c | 1 +
kernel/fork.c| 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 64a6c952091e..98754baf4
On Sun, Jul 14, 2019 at 02:17:25PM +0200, Christian Brauner wrote:
> On Sun, Jul 14, 2019 at 03:02:06PM +0300, Dmitry V. Levin wrote:
> > The introduction of clone3 syscall accidentally broke CLONE_PIDFD
> > support in traditional clone syscall on compat x86 and those
> > a
On Sun, Jul 14, 2019 at 04:23:05PM +0200, Christian Brauner wrote:
> On Sun, Jul 14, 2019 at 05:10:08PM +0300, Dmitry V. Levin wrote:
> > On Sun, Jul 14, 2019 at 02:17:25PM +0200, Christian Brauner wrote:
> > > On Sun, Jul 14, 2019 at 03:02:06PM +0300, Dmitry V. Levin
("fork: add clone3")
Bisected-and-tested-by: Anatoly Pugachev
Signed-off-by: Dmitry V. Levin
---
arch/x86/ia32/sys_ia32.c | 4
include/linux/sched/task.h | 1 +
kernel/fork.c | 17 +++--
3 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/arc
On Mon, Jul 29, 2019 at 05:35:30PM +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
>
> commit: 201766a20e30f982ccfe36bebfad9602c3ff574a ("ptrace: add
> PTRACE_GET_SYSCALL_INFO request")
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/
to extend legacy clone syscall
this way.
So remove the pidfd == 0 check. Userspace that needs to be portable
to kernels without CLONE_PIDFD support is advised to initialize pidfd
with -1 and check the pidfd value returned by CLONE_PIDFD.
Signed-off-by: Dmitry V. Levin
---
kernel/f
Initialize pidfd to an invalid descriptor, to fail gracefully on
those kernels that do not implement CLONE_PIDFD and leave pidfd
unchanged.
Signed-off-by: Dmitry V. Levin
---
samples/pidfd/pidfd-metadata.c | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/samples/pidfd
On Sat, Jun 22, 2019 at 12:13:39AM +0200, Christian Brauner wrote:
[...]
> Out of curiosity: what makes the new flag different than say
> CLONE_NEWCGROUP or any new clone flag that got introduced?
> CLONE_NEWCGROUP too would not be detectable apart from the method I gave
> you above; same for other
On Mon, Jun 24, 2019 at 01:59:43PM +0200, Christian Brauner wrote:
> On Mon, Jun 24, 2019 at 11:49:40AM +0200, Christian Brauner wrote:
> > On Sun, Jun 23, 2019 at 02:27:17PM +0300, Dmitry V. Levin wrote:
> > > Userspace needs a cheap and reliable way to tell whether CLONE_PIDFD
The syscall entry/exit is now exposed via PTRACE_GETEVENTMSG,
update the test accordingly.
Reported-by: kernel test robot
Signed-off-by: Dmitry V. Levin
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 13 +
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/tools
on all architectures.
All patches from this patchset have been already reviewed, so it's ready
to be merged without waiting for the ptrace-specific part. As it's all
about syscall_get_arch(), it should probably go via audit tree.
Dmitry V. Levin (14):
Move EM_ARCOMPACT and
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