Thadeu has moved on. Since his email address does not work anymore,
it's not expected to get his ack.
Signed-off-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
---
MAINTAINERS | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 2
rq to handle the interrupt when
> XHCI_STATE_HALTED but not XHCI_STATE_DYING.
>
> Fixes: 27a41a83ec54 ("xhci: Cleanup only when releasing primary hcd")
> BugLink: https://bugs.launchpad.net/bugs/1604058
> Signed-off-by: Kamal Mostafa <ka...@canonical.com>
> Cc: &l
that, this
looks good to me.
Reviewed-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
> ---
> drivers/nvme/host/pci.c | 10 --
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index d1a8
ha...@linux.vnet.ibm.com>
Reviewed-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
> ---
> drivers/misc/genwqe/card_base.c | 15 +++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/misc/genwqe/card_base.c b/drivers/misc/genwqe/card_base.c
>
e.ops = @p;
>
> @bad@
> position p != {r.p,ok.p};
> identifier r.i;
> struct uart_ops e;
> @@
> e@i@p
>
> @depends on !bad disable optional_qualifier@
> identifier r.i;
> @@
> static
> +const
> struct uart_ops i = { ... };
> //
>
Acked-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
--
Gabriel Krisman Bertazi
Christoph Hellwig <h...@lst.de> writes:
> Simply the interrupt setup by using the new PCI layer helpers.
Good clean up. Tested and:
Acked-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
> One odd thing about this driver is that it looks like it could request
>
Christoph Hellwig <h...@lst.de> writes:
> On Thu, Sep 29, 2016 at 03:28:02PM -0300, Gabriel Krisman Bertazi wrote:
>> Christoph Hellwig <h...@lst.de> writes:
>>
>> > Simply the interrupt setup by using the new PCI layer helpers.
>>
>> Good clean u
Christoph Hellwig <h...@lst.de> writes:
> On Thu, Sep 29, 2016 at 03:45:29PM -0300, Gabriel Krisman Bertazi wrote:
>> I'm stepping up to assist with the genwqe_card driver just now, since we
>> (ibm) missed some of the last patches that went in. I'll add myself to
>>
de>
Acked-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
---
drivers/misc/genwqe/card_base.h | 1 -
drivers/misc/genwqe/card_utils.c | 12 ++--
2 files changed, 2 insertions(+), 11 deletions(-)
diff --git a/drivers/misc/genwqe/card_base.h b/drivers/misc/genwqe/card_base.h
Frank and I maintain this
Signed-off-by: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
Cc: ha...@linux.vnet.ibm.com
---
MAINTAINERS | 6 ++
1 file changed, 6 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index bd69bc0ed717..db20c3204606 100644
--- a/MAINTAINERS
ich then led to
> a bad mq allocation for nvme driver.
>
> Finally, we take the opportunity to fix a comment regarding the affinity
> distribution when we have _more_ nodes than vectors.
Thanks for taking care of this so quickly, Guilherme.
Reviewed-by: Gabriel Krisman Bertazi <gabr...@krisman.be>
--
Gabriel Krisman Bertazi
nk not.
I gave it a try with the jobfile just to be sure on top of
drm-misc-next, and I couldn't reproduce the error anymore after applying
Chris' patch (but I could reproduce the Oops when trying only with my
patch).
Also, sorry for the noise and lesson learned about virtual devices :(
--
Gabriel Krisman Bertazi
NULL pointer dereference at
>>0620
>>[ 195.349309] IP: __lock_acquire+0xc8/0xfe6
>
>
> Sorry that looks like an old bug. While the below soft lockup
> call trace looks more related to the code change.
>
Hi,
For the record, I suspect the Null pointer dereference is already fixed in the
tip
of drm-misc-next. See 4fa13dbe8c86 ("drm: bochs: Don't remove uninitialized
fbdev framebuffer").
--
Gabriel Krisman Bertazi
Masahiro Yamada <yamada.masah...@socionext.com> writes:
> Include instead of relative path from include/drm, then
> remove the -Iinclude/drm compiler flag.
>
> Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
Please add
Reviewed-by: Gabri
Mike Galbraith <efa...@gmx.de> writes:
> On Tue, 2017-05-09 at 04:37 +0200, Mike Galbraith wrote:
>> On Mon, 2017-05-08 at 16:48 -0300, Gabriel Krisman Bertazi wrote:
>>
>> > Thanks for reporting this. Can you confirm the following patch prevents
>> >
ibm.com>
Hi,
Please take my:
Acked-by: Gabriel Krisman Bertazi <gabr...@krisman.be>
Thanks,
--
Gabriel Krisman Bertazi
Mike Galbraith <efa...@gmx.de> writes:
> On Thu, 2017-05-18 at 17:40 -0300, Gabriel Krisman Bertazi wrote:
>> > Mike Galbraith <efa...@gmx.de> writes:
>>
>> >
>> > On Mon, 2017-05-08 at 16:48 -0300, Gabriel Krisman Bertazi wrote:
>> >
&
Mike Galbraith <efa...@gmx.de> writes:
> On Mon, 2017-05-08 at 16:48 -0300, Gabriel Krisman Bertazi wrote:
>
>> Thanks for reporting this. Can you confirm the following patch prevents
>> the issue?
>
> Nope, it still gripes.
Oops... Thanks for checking. The f
RT.
>
Hi Mike,
Thanks for reporting this. Can you confirm the following patch prevents
the issue?
>8
>From 407213129ef4a687378563cbb6ca78faa23f33bd Mon Sep 17 00:00:00 2001
From: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
Date: Mon, 8 May 2017 16:47:22 -0300
Subject: [PATCH]
Krisman Bertazi <kris...@collabora.co.uk>
---
arch/x86/kernel/cpu/intel.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index dfa90a3a5145..51082a9a3d8a 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/ar
Wei Yongjun <weiyongj...@huawei.com> writes:
> In case of error, the function of_graph_get_remote_node() returns NULL
> pointer not ERR_PTR(). The IS_ERR() test in the return value check
> should be replaced with NULL test..
Looks good.
Reviewed-by: Gabriel Krisma
e next patch.
Signed-off-by: Olaf Weber <o...@sgi.com>
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
[Rebase to mainline]
[Fix out-of-tree-build]
[Fix checkpatch warnings]
[Merge back robustness fixes from original patch. Requested by Dave Chinner]
[Update
implements a new interface, allowing charsets to do the
comparison, if needed.
The original stricmp is left in the code, while all callers are not
converted, but was rewritten the new interface.
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
include/linux/nls.
ce RFC v1:
- utf8_version_is_supported receives maj, min and rev as separate
arguments. (Olaf Weber)
Signed-off-by: Olaf Weber <o...@sgi.com>
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
[Rebase to Mainline]
[Fix up checkpatch.pl warnings]
[Drop typedefs]
[Merge with NLS s
a leaf with
the decomposition. Trie size is reduced from 245kB to 90kB.
Signed-off-by: Olaf Weber <o...@sgi.com>
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
[Rebase to mainline]
[Fix checkpatch errors]
[Extract robustness fixes and merge back to original mkutf8data.c
<o...@sgi.com>
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
[Move ucd directory to fs/nls/]
[Update to ucd-10.0.0]
---
fs/nls/ucd/README | 33 +
1 file changed, 33 insertions(+)
create mode 100644 fs/nls/ucd/README
diff --git a/fs/
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
include/linux/nls.h | 28 +++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 72698d524b42..efd3712f0e81 100644
--- a/include/linux
= charset_toupper,
+ .uppercase = charset_tolower,
};
@@
struct nls_table *t;
expression A;
expression nc;
@@
(
- nc = t->charset2lower[A]
+ nc = nls_tolower(t, A)
|
- nc = t->charset2upper[A]
+ nc = nls_toupper(t, A)
)
<...
- if(!nc)
- nc = A;
...>
Signed-off-by: Gab
Changes since RFC v2:
- Merge with NLS
Changes since RFC v1:
- Include comparison tests for matching strings with different lengths.
- Include tests for characters included in unicode 8.0.0, 9.0.0 and 10.0.0.
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
on comparison functions.
- Change length type to size_t.
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
fs/nls/Makefile | 2 +-
fs/nls/nls_utf8n-core.c | 291
fs/nls/nls_utf8n-norm.c | 6 +
fs/nls/utf8n.h |
Changes since v1:
- Fix build as a module (kbuild test robot)
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
fs/nls/Makefile | 1 +
fs/nls/nls_core.c| 94
fs/nls/{nls_base.c => nls_defaul
nls_charset = {
+ .alias = alias_str,
};
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
fs/nls/mac-celtic.c | 12 +---
fs/nls/mac-centeuro.c | 12 +---
fs/nls/mac-croatian.c | 12 +---
fs/nls/mac-cyrillic.c | 12 +---
fs/n
->uni2char
+ c->ops->uni2char
|
- c->char2uni
+ c->ops->char2uni
)
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
fs/nls/mac-celtic.c | 8 ++--
fs/nls/mac-centeuro.c | 8 ++--
fs/nls/mac-croatian.c | 8 ++--
fs/nls/mac-cyrillic.c
NLS charsets wanting to use this feature can implement the load_create()
hook, which creates a nls_table for that specific encoding version. The
charset code is responsible for freeing the table memory when the module
is removed.
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co
Krisman Bertazi (11):
nls: Wrap uni2char/char2uni callers
nls: Wrap charset field access
nls: Wrap charset hooks in ops structure
nls: Split default charset from NLS core
nls: Split struct nls_charset from struct nls_table
nls: Add support for multiple versions of an encoding
nls: Add new
Generated with the following coccinele script:
@@
expression A, B, C, D;
@@
(
- A->uni2char(B, C, D)
+ nls_uni2char(A, B, C, D)
|
- A->char2uni(B, C, D)
+ nls_char2uni(A, B, C, D)
)
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
drivers/staging/ncpfs/ncp
Which will simplify further patches. No behavior changes intended.
@@
struct nls_table *c;
@@
- c->charset
+ nls_charset_name(c)
Signed-off-by: Gabriel Krisman Bertazi <kris...@collabora.co.uk>
---
drivers/staging/ncpfs/ioctl.c | 13 +++--
fs/befs/linuxvfs.c
Krisman Bertazi
---
arch/x86/kernel/cpu/intel.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index dfa90a3a5145..51082a9a3d8a 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
Wei Yongjun writes:
> In case of error, the function of_graph_get_remote_node() returns NULL
> pointer not ERR_PTR(). The IS_ERR() test in the return value check
> should be replaced with NULL test..
Looks good.
Reviewed-by: Gabriel Krisman Bertazi
--
Gabriel Krisman Bertazi
Paul Lawrence writes:
> Below patch will cause NULL ptr dereferences if the optional filenames
> are not present.
>
> Fixes: ef3ba87cb7c9 (um: ubd: Set device serial attribute from cmdline)
> Signed-off-by: Paul Lawrence
Looks good.
Reviewed-by: Gabriel Krisman Bertazi
To
nk there is a right answer for this one, but I
don't see anyone wanting to use these features at the same time. I
think as long as it is documented behavior, it should be fine either
way.
--
Gabriel Krisman Bertazi
Sean Christopherson writes:
> On Thu, Oct 01, 2020 at 02:52:32PM -0700, Andy Lutomirski wrote:
>> On Thu, Oct 1, 2020 at 1:59 PM Gabriel Krisman Bertazi
>> wrote:
>> >
>> > vmx_prepare_switch_to_guest shouldn't use is_64bit_mm, which has a
>&g
In preparation to remove TIF_IA32, stop using it in oprofile code.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/oprofile/backtrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index a2488b6e27d6
these paths with x32 and ia32 binaries.
Gabriel Krisman Bertazi (10):
x86: events: Avoid TIF_IA32 when checking 64bit mode
x86: Simplify compat syscall userspace allocation
x86: oprofile: Avoid TIF_IA32 when checking 64bit mode
x86: elf: Use e_machine to choose DLINFO in compat
elf
In preparation to remove TIF_IA32, stop using it in perf events code.
Tested by running perf on 32-bit, 64-bit and x32 applications.
Suggested-by: Andy Lutomirski
Signed-off-by: Gabriel Krisman Bertazi
Acked-by: Peter Zijlstra (Intel)
---
arch/x86/events/core.c | 2 +-
arch/x86/events
Lutomirski
Cc: Christoph Hellwig
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/compat.h | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index d4edf281fff4..a4b5126dff4e 100644
to
arch_setup_additional_pages, that x86 can reimplement to receive the
extra parameter just for ELF files. This requires no changes to other
architectures, who can continue to use the original
arch_setup_additional_pages for ELF and non-ELF binaries.
Signed-off-by: Gabriel Krisman Bertazi
---
fs/binfmt_elf.c
object when executing
setup_additional_pages in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
Changes since v2:
- Avoid a function-like macro in compat_setup_additional_pages (Andy)
---
arch/x86/entry/vdso/vma.c | 4 ++--
arch/x86/include/asm/elf.h | 6 --
2 files changed, 6
start_thread in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
Changes since v2:
- Avoid a function-like macro in compat_start_thread (Andy)
---
arch/x86/include/asm/elf.h | 5 +++--
arch/x86/kernel/process_64.c | 5 ++---
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git
in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
Reviewed-by: Andy Lutomirski
---
arch/x86/include/asm/elf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index b9a5d488f1a5..9220efc65d78 100644
--- a/arch/x86
, and it prevents affecting
non-ELF code paths for x86.
Signed-off-by: Gabriel Krisman Bertazi
---
fs/binfmt_elf.c| 2 +-
fs/compat_binfmt_elf.c | 9 +++--
include/linux/elf.h| 5 +
3 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index
cannot rely on other methods like user_64bit_mode() to decide how
to patch, so it needs some specific flag like this.
Signed-off-by: Gabriel Krisman Bertazi
---
Changes since v2:
- Rename MM_CONTEXT_GATE_PAGE -> MM_CONTEXT_HAS_VSYSCALL (andy)
---
arch/x86/entry/vsyscall/vsyscall_64.c |
Now that these flags are no longer used, reclaim those TI bits.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/thread_info.h | 4
arch/x86/kernel/process_64.c | 6 --
2 files changed, 10 deletions(-)
diff --git a/arch/x86/include/asm/thread_info.h
b/arch/x86
values
- Rename to syscall user dispatcher
Cc: Matthew Wilcox
Cc: Andy Lutomirski
Cc: Paul Gofman
Cc: Kees Cook
Cc: linux-...@vger.kernel.org
Signed-off-by: Gabriel Krisman Bertazi
---
arch/Kconfig | 21 ++
fs/exec.c | 8 ++
include
SYS_USER_DISPATCH will be triggered when a syscall is sent to userspace
by the Syscall User Dispatch mechanism. This adjusts eventual
BUILD_BUG_ON around the tree.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/kernel/signal_compat.c| 2 +-
include/uapi/asm-generic/siginfo.h | 3
...@collabora.com/
Gabriel Krisman Bertazi (9):
kernel: Support TIF_SYSCALL_INTERCEPT flag
kernel: entry: Support TIF_SYSCAL_INTERCEPT on common entry code
x86: vdso: Expose sigreturn address on vdso to the kernel
signal: Expose SYS_USER_DISPATCH si_code type
kernel: Implement selective
avoid dispatching syscalls from that region to userspace.
Suggested-by: Andy Lutomirski
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/entry/vdso/vdso2c.c | 2 ++
arch/x86/entry/vdso/vdso32/sigreturn.S | 2 ++
arch/x86/entry/vdso/vma.c | 15 +++
arch/x86
code.
This was tested by running the selftests for seccomp. No regressions
were observed, even though I had 4 tests consistently failing (with and
without this patch).
Signed-off-by: Gabriel Krisman Bertazi
---
include/linux/sched.h | 6 ++-
include/linux/seccomp.h | 20
Syscalls that use common entry code (x86 at the moment of this writing)
need to have their defines updated inside this commit. This added a
measureable overhead of 1ns to seccomp_benchmark selftests on a
bare-metal AMD system.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm
Explain the interface, provide some background and security notes.
Signed-off-by: Gabriel Krisman Bertazi
---
.../admin-guide/syscall-user-dispatch.rst | 87 +++
1 file changed, 87 insertions(+)
create mode 100644 Documentation/admin-guide/syscall-user-dispatch.rst
diff
- Add SPDX header
- Use __NR_syscalls if available
Signed-off-by: Gabriel Krisman Bertazi
---
tools/testing/selftests/Makefile | 1 +
.../syscall_user_dispatch/.gitignore | 2 +
.../selftests/syscall_user_dispatch/Makefile | 9 +
.../selftests/syscall_user_dispatch
Syscall User Dispatch requirements are fully supported in x86. This
patch flips the switch, marking it as supported. This was tested
against Syscall User Dispatch selftest.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86
to userspace. In addition,
doing it after ptrace makes the code in syscall_exit_work slightly
simpler, since it doesn't require special handling for this feature.
Signed-off-by: Gabriel Krisman Bertazi
---
kernel/entry/common.c | 8
1 file changed, 8 insertions(+)
diff --git a/kernel
in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/elf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index b9a5d488f1a5..9220efc65d78 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86
In preparation to remove TIF_IA32, stop using it in oprofile code.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/oprofile/backtrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index a2488b6e27d6
remove the TI flags.
Finally, the testing for this patchset was done exercising the code
paths of each case where the flags were used with x32, ia32 and x64
applications. Finally, x86 selftests showed no regressions.
Gabriel Krisman Bertazi (9):
x86: events: Avoid TIF_IA32 when checking 64bit
start_thread in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/elf.h | 11 +--
arch/x86/kernel/process_64.c | 11 +++
2 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index
Lutomirski
Cc: Christoph Hellwig
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/compat.h | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index d4edf281fff4..a4b5126dff4e 100644
.
I tested this by running VMs with 64 and 32 bits payloads from 64/32
programs.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/kvm/vmx/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 7b2a068f08c1..b5aafd9e5f5d
In preparation to remove TIF_IA32, stop using it in perf events code.
Tested by running perf on 32-bit, 64-bit and x32 applications.
Suggested-by: Andy Lutomirski
Signed-off-by: Gabriel Krisman Bertazi
Acked-by: Peter Zijlstra (Intel)
---
arch/x86/events/core.c | 2 +-
arch/x86/events
object when executing
start_thread in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/entry/vdso/vma.c | 21 -
arch/x86/include/asm/elf.h | 11 ---
2 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86
Now that these flags are no longer used, reclaim those TI bits.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/thread_info.h | 4
arch/x86/kernel/process_64.c | 6 --
2 files changed, 10 deletions(-)
diff --git a/arch/x86/include/asm/thread_info.h
b/arch/x86
cannot rely on other methods like user_64bit_mode() to decide how
to patch, so it needs some specific flag like this.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/entry/vsyscall/vsyscall_64.c | 2 +-
arch/x86/include/asm/mmu.h| 6 --
arch/x86/include/asm/mmu_context.h
ted-by: syzbot+05139c4039d0679e1...@syzkaller.appspotmail.com
> Fixes: 2c2eb7a300cd ("f2fs: Support case-insensitive file name lookups")
> Signed-off-by: Eric Biggers
Looks good. For the record, this is fixed on ext4 already.
Reviewed-by: Gabriel Krisman Bertazi
--
Gabriel Krisman Bertazi
came from Andy Lutomirski (Thank
you!)
These were tested by exercising these paths with x32 and ia32 binaries.
Gabriel Krisman Bertazi (6):
x86: events: Avoid TIF_IA32 when checking 64bit mode
x86: Simplify compat syscall userspace allocation
x86: oprofile: Avoid TIF_IA32 when checking
start_thread in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/elf.h | 11 +--
arch/x86/kernel/process_64.c | 11 +++
2 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index
In preparation to remove TIF_IA32, stop using it in perf events code.
Tested by running perf on 32-bit, 64-bit and x32 applications.
Suggested-by: Andy Lutomirski
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/events/core.c | 2 +-
arch/x86/events/intel/ds.c | 2 +-
arch/x86/events
Lutomirski
Cc: Christoph Hellwig
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/compat.h | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index d4edf281fff4..a4b5126dff4e 100644
in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/elf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index b9a5d488f1a5..9220efc65d78 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86
In preparation to remove TIF_IA32, stop using it in oprofile code.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/oprofile/backtrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index a2488b6e27d6
object when executing
start_thread in compat mode.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/entry/vdso/vma.c | 21 -
arch/x86/include/asm/elf.h | 11 ---
2 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86
Christoph Hellwig writes:
> On Sat, Sep 12, 2020 at 03:05:49AM -0400, Gabriel Krisman Bertazi wrote:
>> When allocating user memory space for a compat system call, don't
>> consider whether the originating code is IA32 or X32, just allocate from
>> a safe region for bot
ncoding check here is superfluous, since the
has_strict_mode() cannot be true if !s_encoding. Not related to this
patch though.
Daniel, are you still working on getting this upstream? The fscrypt
support would be very useful for us. :)
In the hope this will get upstream, as its been flying for a while and
looks correct.
Reviewed-by: Gabriel Krisman Bertazi
--
Gabriel Krisman Bertazi
pet...@infradead.org writes:
> On Fri, Sep 04, 2020 at 04:31:39PM -0400, Gabriel Krisman Bertazi wrote:
>> +static inline void __set_tsk_syscall_intercept(struct task_struct *tsk,
>> + unsigned int type)
>> +{
>> +tsk
pet...@infradead.org writes:
> On Fri, Sep 04, 2020 at 04:31:40PM -0400, Gabriel Krisman Bertazi wrote:
>> diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
>> index efebbffcd5cc..72ce9ca860c6 100644
>> --- a/include/linux/entry-common.h
>>
Krisman Bertazi
---
.../admin-guide/syscall-user-dispatch.rst | 4 ++--
include/uapi/linux/prctl.h | 2 ++
kernel/entry/syscall_user_dispatch.c | 4 ++--
.../syscall_user_dispatch/sud_benchmark.c | 8 +---
.../selftests
provide some background and security notes.
Signed-off-by: Gabriel Krisman Bertazi
Reviewed-by: Kees Cook
---
.../admin-guide/syscall-user-dispatch.rst | 87 +++
1 file changed, 87 insertions(+)
create mode 100644 Documentation/admin-guide/syscall-user-dispatch.rst
diff --gi
Rich Felker writes:
> On Wed, Nov 18, 2020 at 01:57:26PM -0500, Gabriel Krisman Bertazi via
> Libc-alpha wrote:
[...]
>
> SIGSYS (or signal handling in general) is not the right way to do
> this. It has all the same problems that came up in seccomp filtering
> with SIGS
Rich Felker writes:
> On Thu, Nov 19, 2020 at 11:15:46AM -0500, Gabriel Krisman Bertazi wrote:
>> Rich Felker writes:
>>
>> > On Wed, Nov 18, 2020 at 01:57:26PM -0500, Gabriel Krisman Bertazi via
>> > Libc-alpha wrote:
>>
>> [...]
>&g
Gabriel Krisman Bertazi writes:
> Introduce a mechanism to quickly disable/enable syscall handling for a
> specific process and redirect to userspace via SIGSYS. This is useful
> for processes with parts that require syscall redirection and parts that
> don't, but who nee
Prepares the common entry code to use the SYSCALL_WORK flags. They will
be defined in subsequent patches for each type of syscall
work. SYSCALL_WORK_ENTRY/EXIT are defined for the transition, as they
will replace the TIF_ equivalent defines.
Signed-off-by: Gabriel Krisman Bertazi
---
include
on the
accessor macros, such that the flag is still correctly resolved for
architectures that don't use the generic entry code and still rely on
TIF flags for system call work.
Signed-off-by: Gabriel Krisman Bertazi
---
include/asm-generic/syscall.h | 14 +++---
include/linux/entry-common.h | 10
on the
list for a while.
Gabriel Krisman Bertazi (10):
x86: Expose syscall_work field in thread_info
kernel: entry: Expose helpers to migrate TIF to SYSCALL_WORK flags
kernel: entry: Wire up syscall_work in common entry code
seccomp: Migrate to use SYSCALL_WORK flag
tracepoints: Migrate to use
on the
accessor macros, such that the flag is still correctly resolved for
architectures that don't use the generic entry code and still rely on
TIF flags for system call work.
Signed-off-by: Gabriel Krisman Bertazi
---
include/linux/entry-common.h | 8 ++--
include/linux/thread_info.h | 2 ++
include
Reclaim TI flags that were migrated to syscall_work flags.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/thread_info.h | 10 --
1 file changed, 10 deletions(-)
diff --git a/arch/x86/include/asm/thread_info.h
b/arch/x86/include/asm/thread_info.h
index b217f63e73b7
This field will be used by SYSCALL_WORK flags, migrated from TI flags.
Signed-off-by: Gabriel Krisman Bertazi
---
arch/x86/include/asm/thread_info.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/thread_info.h
b/arch/x86/include/asm/thread_info.h
index 93277a8d2ef0
on the
accessor macros, such that the flag is still correctly resolved for
architectures that don't use the generic entry code and still rely on
TIF flags for system call work.
Signed-off-by: Gabriel Krisman Bertazi
---
include/asm-generic/syscall.h | 14 +++---
include/linux/entry-common.h | 18
on the
accessor macros, such that the flag is still correctly resolved for
architectures that don't use the generic entry code and still rely on
TIF flags for system call work.
Signed-off-by: Gabriel Krisman Bertazi
---
include/linux/entry-common.h | 13 +
include/linux/thread_info.h | 3
syscall entry code.
Signed-off-by: Gabriel Krisman Bertazi
---
include/linux/thread_info.h | 42 +
1 file changed, 42 insertions(+)
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index e93e249a4e9b..18755373dc4d 100644
--- a/include/linux
macros, such that the flag is still correctly resolved for
architectures that don't use the generic entry code and still rely on
TIF flags for system call work.
Signed-off-by: Gabriel Krisman Bertazi
---
include/linux/entry-common.h | 8 ++--
include/linux/seccomp.h | 2 +-
include/linux
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