Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Merge tag 'integrity-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity subsystem updates from Mimi Zohar:
"The large majority of the changes are EVM porta

Merge tag 'integrity-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity subsystem updates from Mimi Zohar:
"The large majority of the changes are EVM portable & immutable
signature related: removing a dependency on loading an HMAC key,
safely allowing file metadata included in the EVM portable & immutable
signatures to be modified, allowing EVM signatures to fulfill IMA file
signature policy requirements, including the EVM file metadata
signature in lieu of an IMA file data signature in the measurement
list, and adding dynamic debugging of EVM file metadata.

In addition, in order to detect critical data or file change
reversions, duplicate measurement records are permitted in the IMA
measurement list.

The remaining patches address compiler, sparse, and doc warnings"

* tag 'integrity-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: (31 commits)
evm: Check xattr size discrepancy between kernel and user
evm: output EVM digest calculation info
IMA: support for duplicate measurement records
ima: Fix warning: no previous prototype for function 'ima_add_kexec_buffer'
ima: differentiate between EVM failures in the audit log
ima: Fix fall-through warning for Clang
ima: Pass NULL instead of 0 to ima_get_action() in ima_file_mprotect()
ima: Include header defining ima_post_key_create_or_update()
ima/evm: Fix type mismatch
ima: Set correct casting types
doc: Fix warning in Documentation/security/IMA-templates.rst
evm: Don't return an error in evm_write_xattrs() if audit is not enabled
ima: Define new template evm-sig
ima: Define new template fields xattrnames, xattrlengths and xattrvalues
evm: Verify portable signatures against all protected xattrs
ima: Define new template field imode
ima: Define new template fields iuid and igid
ima: Add ima_show_template_uint() template library function
ima: Don't remove security.ima if file must not be appraised
ima: Introduce template field evmsig and write to field sig as fallback
...

show more ...

Merge branch 'verify-evm-portable-sig-v2' into next-integrity

From the cover letter:

The recent patch set 'evm: Improve usability of portable signatures' added
the possibility to include EVM portab

Merge branch 'verify-evm-portable-sig-v2' into next-integrity

From the cover letter:

The recent patch set 'evm: Improve usability of portable signatures' added
the possibility to include EVM portable signatures in the IMA measurement
list.

However, the information necessary to verify the signature were not
included in the IMA measurement list. This patch set introduces new
template fields to accomplish this goal:

- 'iuid': the inode UID;
- 'igid': the inode GID;
- 'imode': the inode mode;
- 'xattrnames': a list of xattr names (separated by |), only if the xattr is
present;
- 'xattrlengths': a list of xattr lengths (u32), only if the xattr is present;
- 'xattrvalues': a list of xattr values;

Patch 1 adds an helper function to show integers in the measurement list.
Patches 2, 3 and 5 introduce new template fields. Patch 4 make it possible
to verify EVM portable signatures which protect xattrs belonging to LSMs
not enabled in the target platform. Patch 6 introduces the new IMA template
evm-sig. Patch 7 fixes a small issue in evm_write_xattrs() when audit is
not enabled.

Link: https://lore.kernel.org/linux-integrity/20210528073812.407936-1-roberto.sassu@huawei.com/

show more ...

ima: Define new template fields xattrnames, xattrlengths and xattrvalues

This patch defines the new template fields xattrnames, xattrlengths and
xattrvalues, which contain respectively a list of xat

ima: Define new template fields xattrnames, xattrlengths and xattrvalues

This patch defines the new template fields xattrnames, xattrlengths and
xattrvalues, which contain respectively a list of xattr names (strings,
separated by |), lengths (u32, hex) and values (hex). If an xattr is not
present, the name and length are not displayed in the measurement list.

Reported-by: kernel test robot <lkp@intel.com> (Missing prototype def)
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

show more ...

ima: Define new template field imode

This patch defines the new template field imode, which includes the
inode mode. It can be used by a remote verifier to verify the EVM portable
signature, if it w

ima: Define new template field imode

This patch defines the new template field imode, which includes the
inode mode. It can be used by a remote verifier to verify the EVM portable
signature, if it was included with the template fields sig or evmsig.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

show more ...

ima: Define new template fields iuid and igid

This patch defines the new template fields iuid and igid, which include
respectively the inode UID and GID. For idmapped mounts, still the original
UID

ima: Define new template fields iuid and igid

This patch defines the new template fields iuid and igid, which include
respectively the inode UID and GID. For idmapped mounts, still the original
UID and GID are provided.

These fields can be used to verify the EVM portable signature, if it was
included with the template fields sig or evmsig.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

show more ...

ima: Add ima_show_template_uint() template library function

This patch introduces the new function ima_show_template_uint(). This can
be used for showing integers of different sizes in ASCII format.

ima: Add ima_show_template_uint() template library function

This patch introduces the new function ima_show_template_uint(). This can
be used for showing integers of different sizes in ASCII format. The
function ima_show_template_data_ascii() automatically determines how to
print a stored integer by checking the integer size.

If integers have been written in canonical format,
ima_show_template_data_ascii() calls the appropriate leXX_to_cpu() function
to correctly display the value.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

show more ...

Merge branch 'misc-evm-v7' into next-integrity

From cover letter:

EVM portable signatures are particularly suitable for the protection of
metadata of immutable files where metadata is signed by a s

Merge branch 'misc-evm-v7' into next-integrity

From cover letter:

EVM portable signatures are particularly suitable for the protection of
metadata of immutable files where metadata is signed by a software vendor.
They can be used for example in conjunction with an IMA policy that
appraises only executed and memory mapped files.

However, until now portable signatures can be properly installed only if
the EVM_ALLOW_METADATA_WRITES initialization flag is also set, which
disables metadata verification until an HMAC key is loaded. This will cause
metadata writes to be allowed even in the situations where they shouldn't
(metadata protected by a portable signature is immutable).

The main reason why setting the flag is necessary is that the operations
necessary to install portable signatures and protected metadata would be
otherwise denied, despite being legitimate, due to the fact that the
decision logic has to avoid an unsafe recalculation of the HMAC that would
make the unsuccessfully verified metadata valid. However, the decision
logic is too coarse, and does not fully take into account all the possible
situations where metadata operations could be allowed.

For example, if the HMAC key is not loaded and it cannot be loaded in the
future due the EVM_SETUP_COMPLETE flag being set, it wouldn't be a problem
to allow metadata operations, as they wouldn't result in an HMAC being
recalculated.

This patch set extends the decision logic and adds the necessary exceptions
to use portable signatures without turning off metadata verification and
deprecates the EVM_ALLOW_METADATA_WRITES flag.

Link: https://lore.kernel.org/linux-integrity/20210514152753.982958-1-roberto.sassu@huawei.com/

show more ...

ima: Introduce template field evmsig and write to field sig as fallback

With the patch to accept EVM portable signatures when the
appraise_type=imasig requirement is specified in the policy, apprais

ima: Introduce template field evmsig and write to field sig as fallback

With the patch to accept EVM portable signatures when the
appraise_type=imasig requirement is specified in the policy, appraisal can
be successfully done even if the file does not have an IMA signature.

However, remote attestation would not see that a different signature type
was used, as only IMA signatures can be included in the measurement list.
This patch solves the issue by introducing the new template field 'evmsig'
to show EVM portable signatures and by including its value in the existing
field 'sig' if the IMA signature is not found.

Suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 5.11 merge window.

Merge tag 'v5.9' into next

Sync up with mainline to bring in the latest DTS files.

Merge branch 'for-5.10/core' into for-linus

- nonblocking read semantics fix for hid-debug

Merge drm/drm-next into drm-intel-next-queued

Sync drm-intel-gt-next here so we can have an unified fixes flow.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for Linux 5.9, take #1

- Multiple stolen time fixes, with a new capability to

Merge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for Linux 5.9, take #1

- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values

show more ...

Merge branch 'for-linus' into for-next

Back-merge to apply the tasklet conversion patches that are based
on the already applied tasklet API changes on 5.9-rc4.

Signed-off-by: Takashi Iwai <tiwai@su

Merge branch 'for-linus' into for-next

Back-merge to apply the tasklet conversion patches that are based
on the already applied tasklet API changes on 5.9-rc4.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

show more ...

Merge branch 'topic/tasklet-convert' into for-linus

Pull tasklet API conversions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge branch 'master' into for-next

Sync with Linus' branch in order to be able to apply fixups
of more recent patches.

Merge tag 'v5.9-rc2' into regulator-5.9

Linux 5.9-rc2

Merge tag 'v5.9-rc2' into asoc-5.9

Linux 5.9-rc2

Merge tag 'v5.9-rc2' into drm-misc-fixes

Backmerge requested by Tomi for a fix to omap inconsistent
locking state issue, and because we need at least v5.9-rc2 now.

Signed-off-by: Maarten Lankhorst

Merge tag 'v5.9-rc2' into drm-misc-fixes

Backmerge requested by Tomi for a fix to omap inconsistent
locking state issue, and because we need at least v5.9-rc2 now.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge v5.9-rc1 into drm-misc-next

Sam needs 5.9-rc1 to have dev_err_probe in to merge some patches.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem updates from James Morris:
"A couple of minor documentation updates only for thi

Merge tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem updates from James Morris:
"A couple of minor documentation updates only for this release"

* tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
LSM: drop duplicated words in header file comments
Replace HTTP links with HTTPS ones: security

show more ...

Replace HTTP links with HTTPS ones: security

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For

Replace HTTP links with HTTPS ones: security

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>

show more ...

Merge branch 'for-5.5/core' into for-linus

- hid_have_special_driver[] cleanup for LED devices (Heiner Kallweit)
- HID parser improvements (Blaž Hrastnik, Candle Sun)

Merge branch 'next' into for-linus

Prepare input updates for 5.5 merge window.