Le 02/10/2023 à 10:55, Joel Granados via B4 Relay a écrit :
> From: Joel Granados
>
> What?
> These commits remove the sentinel element (last empty element) from the
> sysctl arrays of all the files under the "drivers/" directory that use a
> sysctl array for registration. The merging of the
Le 02/10/2023 à 10:47, Joel Granados a écrit :
> On Thu, Sep 28, 2023 at 04:31:30PM +0000, Christophe Leroy wrote:
> I followed this trace and proc_handler is correctly defined in tty_table
> (struct ctl_table) in drivers/tty/tty_io.c:tty_init and there is not
> path that changes
Le 02/10/2023 à 10:17, Jiri Slaby a écrit :
> On 28. 09. 23, 15:21, Joel Granados via B4 Relay wrote:
>> From: Joel Granados
>>
>> This commit comes at the tail end of a greater effort to remove the
>> empty elements at the end of the ctl_table arrays (sentinels) which
>> will reduce the
Le 28/09/2023 à 15:21, Joel Granados via B4 Relay a écrit :
> From: Joel Granados
Automatic test fails on powerpc, see
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20230928-jag-sysctl_remove_empty_elem_drivers-v1-15-e59120fca...@samsung.com/
Kernel attempted to read user page
Le 30/04/2022 à 22:04, Mauro Carvalho Chehab a écrit :
> Sometimes, device drivers are bound into each other via try_module_get(),
> making such references invisible when looking at /proc/modules or lsmod.
>
> Add a function to allow setting up module references for such
> cases, and call it
eb_copy_relocations() only do unsafe_put_user(), it only
requires write access to user.
Use user_write_access_begin() instead of user_access_begin().
Signed-off-by: Christophe Leroy
---
Resending with mm list in addition
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 +++---
1 file
eb_copy_relocations() only do unsafe_put_user(), it only
requires write access to user.
Use user_write_access_begin() instead of user_access_begin().
Signed-off-by: Christophe Leroy
---
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions
Le 03/04/2020 à 20:01, Linus Torvalds a écrit :
On Fri, Apr 3, 2020 at 12:21 AM Christophe Leroy
wrote:
Now we have user_read_access_begin() and user_write_access_begin()
in addition to user_access_begin().
I realize Al asked for this, but I don't think it really adds anything
Add support for selective read or write user access with
user_read_access_begin/end and user_write_access_begin/end.
Signed-off-by: Christophe Leroy
Reviewed-by: Kees Cook
---
v2: no change
---
arch/powerpc/include/asm/book3s/32/kup.h | 4 ++--
arch/powerpc/include/asm/kup.h | 14
When i915_gem_execbuffer2_ioctl() is using user_access_begin(),
that's only to perform unsafe_put_user() so use
user_write_access_begin() in order to only open write access.
Signed-off-by: Christophe Leroy
Reviewed-by: Kees Cook
---
v2: Rebased (one part of the patch flies away)
---
drivers
and user_write_access_end to only open
write access.
By default, when undefined, those new access helpers default on the
existing user_access_begin and user_access_end.
Signed-off-by: Christophe Leroy
Reviewed-by: Kees Cook
---
v2: no change in this patch. See each patch for related changes.
v1
When opening user access to only perform reads, only open read access.
When opening user access to only perform writes, only open write
access.
Signed-off-by: Christophe Leroy
Reviewed-by: Kees Cook
---
v2: Fixed a mismatched use of _read_ and _write_ in compat_get_bitmap
with following command, then hand splitted two too long lines.
sed -i s/user_access_begin/user_full_access_begin/g `git grep -l
user_access_begin`
Signed-off-by: Christophe Leroy
---
v2: New, based on remark from Al Viro.
---
arch/powerpc/include/asm/uaccess.h | 5 +++--
arch/x86/include/asm
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