<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/include/uapi, branch v6.6.92</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>types: Complement the aligned types with signed 64-bit one</title>
<updated>2025-05-18T06:24:09+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2024-09-03T17:59:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=9519771908fc3562a9c70b90db20c90c969b700a'/>
<id>9519771908fc3562a9c70b90db20c90c969b700a</id>
<content type='text'>
[ Upstream commit e4ca0e59c39442546866f3dd514a3a5956577daf ]

Some user may want to use aligned signed 64-bit type.
Provide it for them.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/20240903180218.3640501-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Stable-dep-of: 1bb942287e05 ("iio: accel: adxl355: Make timestamp 64-bit aligned using aligned_s64")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit e4ca0e59c39442546866f3dd514a3a5956577daf ]

Some user may want to use aligned signed 64-bit type.
Provide it for them.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/20240903180218.3640501-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Stable-dep-of: 1bb942287e05 ("iio: accel: adxl355: Make timestamp 64-bit aligned using aligned_s64")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>landlock: Add the errata interface</title>
<updated>2025-04-25T08:45:57+00:00</updated>
<author>
<name>Mickaël Salaün</name>
<email>mic@digikod.net</email>
</author>
<published>2025-03-18T16:14:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=efde4462b3217e777f385c8d2ade960de3d9666e'/>
<id>efde4462b3217e777f385c8d2ade960de3d9666e</id>
<content type='text'>
commit 15383a0d63dbcd63dc7e8d9ec1bf3a0f7ebf64ac upstream.

Some fixes may require user space to check if they are applied on the
running kernel before using a specific feature.  For instance, this
applies when a restriction was previously too restrictive and is now
getting relaxed (e.g. for compatibility reasons).  However, non-visible
changes for legitimate use (e.g. security fixes) do not require an
erratum.

Because fixes are backported down to a specific Landlock ABI, we need a
way to avoid cherry-pick conflicts.  The solution is to only update a
file related to the lower ABI impacted by this issue.  All the ABI files
are then used to create a bitmask of fixes.

The new errata interface is similar to the one used to get the supported
Landlock ABI version, but it returns a bitmask instead because the order
of fixes may not match the order of versions, and not all fixes may
apply to all versions.

The actual errata will come with dedicated commits.  The description is
not actually used in the code but serves as documentation.

Create the landlock_abi_version symbol and use its value to check errata
consistency.

Update test_base's create_ruleset_checks_ordering tests and add errata
tests.

This commit is backportable down to the first version of Landlock.

Fixes: 3532b0b4352c ("landlock: Enable user space to infer supported features")
Cc: Günther Noack &lt;gnoack@google.com&gt;
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250318161443.279194-3-mic@digikod.net
Signed-off-by: Mickaël Salaün &lt;mic@digikod.net&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 15383a0d63dbcd63dc7e8d9ec1bf3a0f7ebf64ac upstream.

Some fixes may require user space to check if they are applied on the
running kernel before using a specific feature.  For instance, this
applies when a restriction was previously too restrictive and is now
getting relaxed (e.g. for compatibility reasons).  However, non-visible
changes for legitimate use (e.g. security fixes) do not require an
erratum.

Because fixes are backported down to a specific Landlock ABI, we need a
way to avoid cherry-pick conflicts.  The solution is to only update a
file related to the lower ABI impacted by this issue.  All the ABI files
are then used to create a bitmask of fixes.

The new errata interface is similar to the one used to get the supported
Landlock ABI version, but it returns a bitmask instead because the order
of fixes may not match the order of versions, and not all fixes may
apply to all versions.

The actual errata will come with dedicated commits.  The description is
not actually used in the code but serves as documentation.

Create the landlock_abi_version symbol and use its value to check errata
consistency.

Update test_base's create_ruleset_checks_ordering tests and add errata
tests.

This commit is backportable down to the first version of Landlock.

Fixes: 3532b0b4352c ("landlock: Enable user space to infer supported features")
Cc: Günther Noack &lt;gnoack@google.com&gt;
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250318161443.279194-3-mic@digikod.net
Signed-off-by: Mickaël Salaün &lt;mic@digikod.net&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdkfd: clamp queue size to minimum</title>
<updated>2025-04-25T08:45:18+00:00</updated>
<author>
<name>David Yat Sin</name>
<email>David.YatSin@amd.com</email>
</author>
<published>2025-02-25T23:08:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=06a1db4cb7ac62e649e735ba90afc5c46a0b8780'/>
<id>06a1db4cb7ac62e649e735ba90afc5c46a0b8780</id>
<content type='text'>
[ Upstream commit e90711946b53590371ecce32e8fcc381a99d6333 ]

If queue size is less than minimum, clamp it to minimum to prevent
underflow when writing queue mqd.

Signed-off-by: David Yat Sin &lt;David.YatSin@amd.com&gt;
Reviewed-by: Jay Cornwall &lt;jay.cornwall@amd.com&gt;
Reviewed-by: Harish Kasiviswanathan &lt;Harish.Kasiviswanathan@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit e90711946b53590371ecce32e8fcc381a99d6333 ]

If queue size is less than minimum, clamp it to minimum to prevent
underflow when writing queue mqd.

Signed-off-by: David Yat Sin &lt;David.YatSin@amd.com&gt;
Reviewed-by: Jay Cornwall &lt;jay.cornwall@amd.com&gt;
Reviewed-by: Harish Kasiviswanathan &lt;Harish.Kasiviswanathan@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>IB/core: Add support for XDR link speed</title>
<updated>2025-03-07T15:45:37+00:00</updated>
<author>
<name>Or Har-Toov</name>
<email>ohartoov@nvidia.com</email>
</author>
<published>2023-09-20T10:07:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b993c450f94de40bce624c082597bbeaa93145b8'/>
<id>b993c450f94de40bce624c082597bbeaa93145b8</id>
<content type='text'>
[ Upstream commit 703289ce43f740b0096724300107df82d008552f ]

Add new IBTA speed XDR, the new rate that was added to Infiniband spec
as part of XDR and supporting signaling rate of 200Gb.

In order to report that value to rdma-core, add new u32 field to
query_port response.

Signed-off-by: Or Har-Toov &lt;ohartoov@nvidia.com&gt;
Reviewed-by: Mark Zhang &lt;markzhang@nvidia.com&gt;
Link: https://lore.kernel.org/r/9d235fc600a999e8274010f0e18b40fa60540e6c.1695204156.git.leon@kernel.org
Reviewed-by: Jacob Keller &lt;jacob.e.keller@intel.com&gt;
Signed-off-by: Leon Romanovsky &lt;leon@kernel.org&gt;
Stable-dep-of: c534ffda781f ("RDMA/mlx5: Fix AH static rate parsing")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 703289ce43f740b0096724300107df82d008552f ]

Add new IBTA speed XDR, the new rate that was added to Infiniband spec
as part of XDR and supporting signaling rate of 200Gb.

In order to report that value to rdma-core, add new u32 field to
query_port response.

Signed-off-by: Or Har-Toov &lt;ohartoov@nvidia.com&gt;
Reviewed-by: Mark Zhang &lt;markzhang@nvidia.com&gt;
Link: https://lore.kernel.org/r/9d235fc600a999e8274010f0e18b40fa60540e6c.1695204156.git.leon@kernel.org
Reviewed-by: Jacob Keller &lt;jacob.e.keller@intel.com&gt;
Signed-off-by: Leon Romanovsky &lt;leon@kernel.org&gt;
Stable-dep-of: c534ffda781f ("RDMA/mlx5: Fix AH static rate parsing")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Input: allocate keycode for phone linking</title>
<updated>2025-02-17T08:40:10+00:00</updated>
<author>
<name>Illia Ostapyshyn</name>
<email>illia@yshyn.com</email>
</author>
<published>2024-11-14T17:39:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=530a91be13af986a9eeca4a7195e0c380ff7ce5e'/>
<id>530a91be13af986a9eeca4a7195e0c380ff7ce5e</id>
<content type='text'>
[ Upstream commit 1bebc7869c99d466f819dd2cffaef0edf7d7a035 ]

The F11 key on the new Lenovo Thinkpad T14 Gen 5, T16 Gen 3, and P14s
Gen 5 laptops includes a symbol showing a smartphone and a laptop
chained together.  According to the user manual, it starts the Microsoft
Phone Link software used to connect to Android/iOS devices and relay
messages/calls or sync data.

As there are no suitable keycodes for this action, introduce a new one.

Signed-off-by: Illia Ostapyshyn &lt;illia@yshyn.com&gt;
Acked-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
Link: https://lore.kernel.org/r/20241114173930.44983-2-illia@yshyn.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 1bebc7869c99d466f819dd2cffaef0edf7d7a035 ]

The F11 key on the new Lenovo Thinkpad T14 Gen 5, T16 Gen 3, and P14s
Gen 5 laptops includes a symbol showing a smartphone and a laptop
chained together.  According to the user manual, it starts the Microsoft
Phone Link software used to connect to Android/iOS devices and relay
messages/calls or sync data.

As there are no suitable keycodes for this action, introduce a new one.

Signed-off-by: Illia Ostapyshyn &lt;illia@yshyn.com&gt;
Acked-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
Link: https://lore.kernel.org/r/20241114173930.44983-2-illia@yshyn.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>stddef: make __struct_group() UAPI C++-friendly</title>
<updated>2025-01-02T09:32:03+00:00</updated>
<author>
<name>Alexander Lobakin</name>
<email>aleksander.lobakin@intel.com</email>
</author>
<published>2024-12-19T13:57:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=23681bc4b59f6438b602df509372dc6a7d7e10f4'/>
<id>23681bc4b59f6438b602df509372dc6a7d7e10f4</id>
<content type='text'>
[ Upstream commit 724c6ce38bbaeb4b3f109b0e066d6c0ecd15446c ]

For the most part of the C++ history, it couldn't have type
declarations inside anonymous unions for different reasons. At the
same time, __struct_group() relies on the latters, so when the @TAG
argument is not empty, C++ code doesn't want to build (even under
`extern "C"`):

../linux/include/uapi/linux/pkt_cls.h:25:24: error:
'struct tc_u32_sel::&lt;unnamed union&gt;::tc_u32_sel_hdr,' invalid;
an anonymous union may only have public non-static data members
[-fpermissive]

The safest way to fix this without trying to switch standards (which
is impossible in UAPI anyway) etc., is to disable tag declaration
for that language. This won't break anything since for now it's not
buildable at all.
Use a separate definition for __struct_group() when __cplusplus is
defined to mitigate the error, including the version from tools/.

Fixes: 50d7bd38c3aa ("stddef: Introduce struct_group() helper macro")
Reported-by: Christopher Ferris &lt;cferris@google.com&gt;
Closes: https://lore.kernel.org/linux-hardening/Z1HZpe3WE5As8UAz@google.com
Suggested-by: Kees Cook &lt;kees@kernel.org&gt; # __struct_group_tag()
Signed-off-by: Alexander Lobakin &lt;aleksander.lobakin@intel.com&gt;
Reviewed-by: Gustavo A. R. Silva &lt;gustavoars@kernel.org&gt;
Link: https://lore.kernel.org/r/20241219135734.2130002-1-aleksander.lobakin@intel.com
Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 724c6ce38bbaeb4b3f109b0e066d6c0ecd15446c ]

For the most part of the C++ history, it couldn't have type
declarations inside anonymous unions for different reasons. At the
same time, __struct_group() relies on the latters, so when the @TAG
argument is not empty, C++ code doesn't want to build (even under
`extern "C"`):

../linux/include/uapi/linux/pkt_cls.h:25:24: error:
'struct tc_u32_sel::&lt;unnamed union&gt;::tc_u32_sel_hdr,' invalid;
an anonymous union may only have public non-static data members
[-fpermissive]

The safest way to fix this without trying to switch standards (which
is impossible in UAPI anyway) etc., is to disable tag declaration
for that language. This won't break anything since for now it's not
buildable at all.
Use a separate definition for __struct_group() when __cplusplus is
defined to mitigate the error, including the version from tools/.

Fixes: 50d7bd38c3aa ("stddef: Introduce struct_group() helper macro")
Reported-by: Christopher Ferris &lt;cferris@google.com&gt;
Closes: https://lore.kernel.org/linux-hardening/Z1HZpe3WE5As8UAz@google.com
Suggested-by: Kees Cook &lt;kees@kernel.org&gt; # __struct_group_tag()
Signed-off-by: Alexander Lobakin &lt;aleksander.lobakin@intel.com&gt;
Reviewed-by: Gustavo A. R. Silva &lt;gustavoars@kernel.org&gt;
Link: https://lore.kernel.org/r/20241219135734.2130002-1-aleksander.lobakin@intel.com
Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>sched/headers: Move 'struct sched_param' out of uapi, to work around glibc/musl breakage</title>
<updated>2024-12-14T19:00:19+00:00</updated>
<author>
<name>Kir Kolyshkin</name>
<email>kolyshkin@gmail.com</email>
</author>
<published>2023-08-08T03:03:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=654f3294c69e0064df5c6e8552dc188433b123aa'/>
<id>654f3294c69e0064df5c6e8552dc188433b123aa</id>
<content type='text'>
[ Upstream commit d844fe65f0957024c3e1b0bf2a0615246184d9bc ]

Both glibc and musl define 'struct sched_param' in sched.h, while kernel
has it in uapi/linux/sched/types.h, making it cumbersome to use
sched_getattr(2) or sched_setattr(2) from userspace.

For example, something like this:

	#include &lt;sched.h&gt;
	#include &lt;linux/sched/types.h&gt;

	struct sched_attr sa;

will result in "error: redefinition of ‘struct sched_param’" (note the
code doesn't need sched_param at all -- it needs struct sched_attr
plus some stuff from sched.h).

The situation is, glibc is not going to provide a wrapper for
sched_{get,set}attr, thus the need to include linux/sched_types.h
directly, which leads to the above problem.

Thus, the userspace is left with a few sub-par choices when it wants to
use e.g. sched_setattr(2), such as maintaining a copy of struct
sched_attr definition, or using some other ugly tricks.

OTOH, 'struct sched_param' is well known, defined in POSIX, and it won't
be ever changed (as that would break backward compatibility).

So, while 'struct sched_param' is indeed part of the kernel uapi,
exposing it the way it's done now creates an issue, and hiding it
(like this patch does) fixes that issue, hopefully without creating
another one: common userspace software rely on libc headers, and as
for "special" software (like libc), it looks like glibc and musl
do not rely on kernel headers for 'struct sched_param' definition
(but let's Cc their mailing lists in case it's otherwise).

The alternative to this patch would be to move struct sched_attr to,
say, linux/sched.h, or linux/sched/attr.h (the new file).

Oh, and here is the previous attempt to fix the issue:

  https://lore.kernel.org/all/20200528135552.GA87103@google.com/

While I support Linus arguments, the issue is still here
and needs to be fixed.

[ mingo: Linus is right, this shouldn't be needed - but on the other
         hand I agree that this header is not really helpful to
	 user-space as-is. So let's pretend that
	 &lt;uapi/linux/sched/types.h&gt; is only about sched_attr, and
	 call this commit a workaround for user-space breakage
	 that it in reality is ... Also, remove the Fixes tag. ]

Signed-off-by: Kir Kolyshkin &lt;kolyshkin@gmail.com&gt;
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Link: https://lore.kernel.org/r/20230808030357.1213829-1-kolyshkin@gmail.com
Stable-dep-of: 0664e2c311b9 ("sched/deadline: Fix warning in migrate_enable for boosted tasks")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit d844fe65f0957024c3e1b0bf2a0615246184d9bc ]

Both glibc and musl define 'struct sched_param' in sched.h, while kernel
has it in uapi/linux/sched/types.h, making it cumbersome to use
sched_getattr(2) or sched_setattr(2) from userspace.

For example, something like this:

	#include &lt;sched.h&gt;
	#include &lt;linux/sched/types.h&gt;

	struct sched_attr sa;

will result in "error: redefinition of ‘struct sched_param’" (note the
code doesn't need sched_param at all -- it needs struct sched_attr
plus some stuff from sched.h).

The situation is, glibc is not going to provide a wrapper for
sched_{get,set}attr, thus the need to include linux/sched_types.h
directly, which leads to the above problem.

Thus, the userspace is left with a few sub-par choices when it wants to
use e.g. sched_setattr(2), such as maintaining a copy of struct
sched_attr definition, or using some other ugly tricks.

OTOH, 'struct sched_param' is well known, defined in POSIX, and it won't
be ever changed (as that would break backward compatibility).

So, while 'struct sched_param' is indeed part of the kernel uapi,
exposing it the way it's done now creates an issue, and hiding it
(like this patch does) fixes that issue, hopefully without creating
another one: common userspace software rely on libc headers, and as
for "special" software (like libc), it looks like glibc and musl
do not rely on kernel headers for 'struct sched_param' definition
(but let's Cc their mailing lists in case it's otherwise).

The alternative to this patch would be to move struct sched_attr to,
say, linux/sched.h, or linux/sched/attr.h (the new file).

Oh, and here is the previous attempt to fix the issue:

  https://lore.kernel.org/all/20200528135552.GA87103@google.com/

While I support Linus arguments, the issue is still here
and needs to be fixed.

[ mingo: Linus is right, this shouldn't be needed - but on the other
         hand I agree that this header is not really helpful to
	 user-space as-is. So let's pretend that
	 &lt;uapi/linux/sched/types.h&gt; is only about sched_attr, and
	 call this commit a workaround for user-space breakage
	 that it in reality is ... Also, remove the Fixes tag. ]

Signed-off-by: Kir Kolyshkin &lt;kolyshkin@gmail.com&gt;
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Link: https://lore.kernel.org/r/20230808030357.1213829-1-kolyshkin@gmail.com
Stable-dep-of: 0664e2c311b9 ("sched/deadline: Fix warning in migrate_enable for boosted tasks")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fanotify: allow reporting errors on failure to open fd</title>
<updated>2024-12-14T19:00:05+00:00</updated>
<author>
<name>Amir Goldstein</name>
<email>amir73il@gmail.com</email>
</author>
<published>2024-10-03T14:29:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ffe1766a3a55d2632e3d4da654613b20d1cd8d16'/>
<id>ffe1766a3a55d2632e3d4da654613b20d1cd8d16</id>
<content type='text'>
[ Upstream commit 522249f05c5551aec9ec0ba9b6438f1ec19c138d ]

When working in "fd mode", fanotify_read() needs to open an fd
from a dentry to report event-&gt;fd to userspace.

Opening an fd from dentry can fail for several reasons.
For example, when tasks are gone and we try to open their
/proc files or we try to open a WRONLY file like in sysfs
or when trying to open a file that was deleted on the
remote network server.

Add a new flag FAN_REPORT_FD_ERROR for fanotify_init().
For a group with FAN_REPORT_FD_ERROR, we will send the
event with the error instead of the open fd, otherwise
userspace may not get the error at all.

For an overflow event, we report -EBADF to avoid confusing FAN_NOFD
with -EPERM.  Similarly for pidfd open errors we report either -ESRCH
or the open error instead of FAN_NOPIDFD and FAN_EPIDFD.

In any case, userspace will not know which file failed to
open, so add a debug print for further investigation.

Reported-by: Krishna Vivek Vitta &lt;kvitta@microsoft.com&gt;
Link: https://lore.kernel.org/linux-fsdevel/SI2P153MB07182F3424619EDDD1F393EED46D2@SI2P153MB0718.APCP153.PROD.OUTLOOK.COM/
Signed-off-by: Amir Goldstein &lt;amir73il@gmail.com&gt;
Signed-off-by: Jan Kara &lt;jack@suse.cz&gt;
Link: https://patch.msgid.link/20241003142922.111539-1-amir73il@gmail.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 522249f05c5551aec9ec0ba9b6438f1ec19c138d ]

When working in "fd mode", fanotify_read() needs to open an fd
from a dentry to report event-&gt;fd to userspace.

Opening an fd from dentry can fail for several reasons.
For example, when tasks are gone and we try to open their
/proc files or we try to open a WRONLY file like in sysfs
or when trying to open a file that was deleted on the
remote network server.

Add a new flag FAN_REPORT_FD_ERROR for fanotify_init().
For a group with FAN_REPORT_FD_ERROR, we will send the
event with the error instead of the open fd, otherwise
userspace may not get the error at all.

For an overflow event, we report -EBADF to avoid confusing FAN_NOFD
with -EPERM.  Similarly for pidfd open errors we report either -ESRCH
or the open error instead of FAN_NOPIDFD and FAN_EPIDFD.

In any case, userspace will not know which file failed to
open, so add a debug print for further investigation.

Reported-by: Krishna Vivek Vitta &lt;kvitta@microsoft.com&gt;
Link: https://lore.kernel.org/linux-fsdevel/SI2P153MB07182F3424619EDDD1F393EED46D2@SI2P153MB0718.APCP153.PROD.OUTLOOK.COM/
Signed-off-by: Amir Goldstein &lt;amir73il@gmail.com&gt;
Signed-off-by: Jan Kara &lt;jack@suse.cz&gt;
Link: https://patch.msgid.link/20241003142922.111539-1-amir73il@gmail.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>netlink: typographical error in nlmsg_type constants definition</title>
<updated>2024-12-09T09:32:08+00:00</updated>
<author>
<name>Maurice Lambert</name>
<email>mauricelambert434@gmail.com</email>
</author>
<published>2024-11-03T22:39:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=c88ae0a77c21a54277e8dfb79206ade23e6e4941'/>
<id>c88ae0a77c21a54277e8dfb79206ade23e6e4941</id>
<content type='text'>
[ Upstream commit 84bfbfbbd32aee136afea4b6bf82581dce79c305 ]

This commit fix a typographical error in netlink nlmsg_type constants definition in the include/uapi/linux/rtnetlink.h at line 177. The definition is RTM_NEWNVLAN RTM_NEWVLAN instead of RTM_NEWVLAN RTM_NEWVLAN.

Signed-off-by: Maurice Lambert &lt;mauricelambert434@gmail.com&gt;
Fixes: 8dcea187088b ("net: bridge: vlan: add rtm definitions and dump support")
Link: https://patch.msgid.link/20241103223950.230300-1-mauricelambert434@gmail.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 84bfbfbbd32aee136afea4b6bf82581dce79c305 ]

This commit fix a typographical error in netlink nlmsg_type constants definition in the include/uapi/linux/rtnetlink.h at line 177. The definition is RTM_NEWNVLAN RTM_NEWVLAN instead of RTM_NEWVLAN RTM_NEWVLAN.

Signed-off-by: Maurice Lambert &lt;mauricelambert434@gmail.com&gt;
Fixes: 8dcea187088b ("net: bridge: vlan: add rtm definitions and dump support")
Link: https://patch.msgid.link/20241103223950.230300-1-mauricelambert434@gmail.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bpf: Add cookie to perf_event bpf_link_info records</title>
<updated>2024-11-01T00:58:19+00:00</updated>
<author>
<name>Jiri Olsa</name>
<email>jolsa@kernel.org</email>
</author>
<published>2024-01-19T11:04:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cfd63c3a45388d628b3cdd57d79b03f004cdf4d8'/>
<id>cfd63c3a45388d628b3cdd57d79b03f004cdf4d8</id>
<content type='text'>
[ Upstream commit d5c16492c66fbfca85f36e42363d32212df5927b ]

At the moment we don't store cookie for perf_event probes,
while we do that for the rest of the probes.

Adding cookie fields to struct bpf_link_info perf event
probe records:

  perf_event.uprobe
  perf_event.kprobe
  perf_event.tracepoint
  perf_event.perf_event

And the code to store that in bpf_link_info struct.

Signed-off-by: Jiri Olsa &lt;jolsa@kernel.org&gt;
Acked-by: Song Liu &lt;song@kernel.org&gt;
Acked-by: Yafang Shao &lt;laoar.shao@gmail.com&gt;
Link: https://lore.kernel.org/r/20240119110505.400573-2-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov &lt;ast@kernel.org&gt;
Stable-dep-of: 4deecdd29cf2 ("bpf: fix unpopulated name_len field in perf_event link info")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit d5c16492c66fbfca85f36e42363d32212df5927b ]

At the moment we don't store cookie for perf_event probes,
while we do that for the rest of the probes.

Adding cookie fields to struct bpf_link_info perf event
probe records:

  perf_event.uprobe
  perf_event.kprobe
  perf_event.tracepoint
  perf_event.perf_event

And the code to store that in bpf_link_info struct.

Signed-off-by: Jiri Olsa &lt;jolsa@kernel.org&gt;
Acked-by: Song Liu &lt;song@kernel.org&gt;
Acked-by: Yafang Shao &lt;laoar.shao@gmail.com&gt;
Link: https://lore.kernel.org/r/20240119110505.400573-2-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov &lt;ast@kernel.org&gt;
Stable-dep-of: 4deecdd29cf2 ("bpf: fix unpopulated name_len field in perf_event link info")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
