Commit Graph

1396715 Commits

Author SHA1 Message Date
David Laight
14ca8ce1fc crypto: ccp - use min() instead of min_t()
min_t(unsigned int, a, b) casts an 'unsigned long' to 'unsigned int'.
Use min(a, b) instead as it promotes any 'unsigned int' to 'unsigned long'
and so cannot discard significant bits.

In this case the 'unsigned long' value is small enough that the result
is ok.

Detected by an extra check added to min_t().

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-24 17:44:14 +08:00
David Laight
0f8ead58b6 hwrng: core - use min3() instead of nested min_t()
min_t(u16, a, b) is likely to discard significant bits.
Replace:
	min_t(u16, min_t(u16, default_quality, 1024), rng->quality ?: 1024);
with:
	min3(default_quality, 1024, rng->quality ?: 1024);

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-24 17:44:14 +08:00
David Laight
6c5d5b6dc5 crypto: aesni - ctr_crypt() use min() instead of min_t()
min_t(unsigned int, a, b) casts an 'unsigned long' to 'unsigned int'.
Use min(a, b) instead as it promotes any 'unsigned int' to 'unsigned long'
and so cannot discard significant bits.

In this case the 'unsigned long' value is small enough that the result
is ok.

Detected by an extra check added to min_t().

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-24 17:43:40 +08:00
Herbert Xu
680cd3e28c crypto: drbg - Delete unused ctx from struct sdesc
The ctx array in struct sdesc is never used.  Delete it as it's
bogus since the previous member ends with a flexible array.

Reported-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-24 17:43:40 +08:00
Thorsten Blum
c637f3e4a5 crypto: testmgr - Add missing DES weak and semi-weak key tests
Ever since commit da7f033ddc ("crypto: cryptomgr - Add test
infrastructure"), the DES test suite has tested only one of the four
weak keys and none of the twelve semi-weak keys.

DES has four weak keys and twelve semi-weak keys, and the kernel's DES
implementation correctly detects and rejects all of these keys when the
CRYPTO_TFM_REQ_FORBID_WEAK_KEYS flag is set. However, only a single weak
key was being tested. Add tests for all 16 weak and semi-weak keys.

While DES is deprecated, it is still used in some legacy protocols, and
weak/semi-weak key detection should be tested accordingly.

Tested on arm64 with cryptographic self-tests.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-24 17:43:40 +08:00
Eric Biggers
20d868a77f Revert "crypto: scatterwalk - Move skcipher walk and use it for memcpy_sglist"
This reverts commit 0f8d42bf12, with the
memcpy_sglist() part dropped.

Now that memcpy_sglist() no longer uses the skcipher_walk code, the
skcipher_walk code can be moved back to where it belongs.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Eric Biggers
4dffc9bbff crypto: scatterwalk - Fix memcpy_sglist() to always succeed
The original implementation of memcpy_sglist() was broken because it
didn't handle scatterlists that describe exactly the same memory, which
is a case that many callers rely on.  The current implementation is
broken too because it calls the skcipher_walk functions which can fail.
It ignores any errors from those functions.

Fix it by replacing it with a new implementation written from scratch.
It always succeeds.  It's also a bit faster, since it avoids the
overhead of skcipher_walk.  skcipher_walk includes a lot of
functionality (such as alignmask handling) that's irrelevant here.

Reported-by: Colin Ian King <coking@nvidia.com>
Closes: https://lore.kernel.org/r/20251114122620.111623-1-coking@nvidia.com
Fixes: 131bdceca1 ("crypto: scatterwalk - Add memcpy_sglist")
Fixes: 0f8d42bf12 ("crypto: scatterwalk - Move skcipher walk and use it for memcpy_sglist")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Kanchana P Sridhar
5727a844a3 crypto: iaa - Request to add Kanchana P Sridhar to Maintainers.
As suggested by Herbert, I would like to request to be added as a
Maintainer for the iaa_crypto driver.

Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Eric Biggers
bfc11a84e0 crypto: tcrypt - Remove unused poly1305 support
Since the crypto_shash support for poly1305 was removed, the tcrypt
support for it is now unused as well.  Support for benchmarking the
kernel's Poly1305 code is now provided by the poly1305 kunit test.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Eric Biggers
c7dcb041ce crypto: ansi_cprng - Remove unused ansi_cprng algorithm
Remove ansi_cprng, since it's obsolete and unused, as confirmed at
https://lore.kernel.org/r/aQxpnckYMgAAOLpZ@gondor.apana.org.au/

This was originally added in 2008, apparently as a FIPS approved random
number generator.  Whether this has ever belonged upstream is
questionable.  Either way, ansi_cprng is no longer usable for this
purpose, since it's been superseded by the more modern algorithms in
crypto/drbg.c, and FIPS itself no longer allows it.  (NIST SP 800-131A
Rev 1 (2015) says that RNGs based on ANSI X9.31 will be disallowed after
2015.  NIST SP 800-131A Rev 2 (2019) confirms they are now disallowed.)

Therefore, there is no reason to keep it around.

Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Haotian Zhang <vulab@iscas.ac.cn>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Ally Heev
79492d5adf crypto: asymmetric_keys - fix uninitialized pointers with free attribute
Uninitialized pointers with `__free` attribute can cause undefined
behavior as the memory assigned randomly to the pointer is freed
automatically when the pointer goes out of scope.

crypto/asymmetric_keys doesn't have any bugs related to this as of now,
but, it is better to initialize and assign pointers with `__free`
attribute in one statement to ensure proper scope-based cleanup

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aPiG_F5EBQUjZqsl@stanley.mountain/
Signed-off-by: Ally Heev <allyheev@gmail.com>
Reviewed-by: Ignat Korchagin <ignat@cloudflare.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Gustavo A. R. Silva
a26c23e0d6 KEYS: Avoid -Wflex-array-member-not-at-end warning
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Use the new TRAILING_OVERLAP() helper to fix the following warning:

crypto/asymmetric_keys/restrict.c:20:34: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

This helper creates a union between a flexible-array member (FAM) and a
set of MEMBERS that would otherwise follow it.

This overlays the trailing MEMBER unsigned char data[10]; onto the FAM
struct asymmetric_key_id::data[], while keeping the FAM and the start
of MEMBER aligned.

The static_assert() ensures this alignment remains, and it's
intentionally placed inmediately after the corresponding structures --no
blank line in between.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Ignat Korchagin <ignat@cloudflare.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Haotian Zhang
8700ce07c5 crypto: ccree - Correctly handle return of sg_nents_for_len
Fix error handling in cc_map_hash_request_update where sg_nents_for_len
return value was assigned to u32, converting negative errors to large
positive values before passing to sg_copy_to_buffer.

Check sg_nents_for_len return value and propagate errors before
assigning to areq_ctx->in_nents.

Fixes: b7ec853068 ("crypto: ccree - use std api when possible")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:50 +08:00
Haotian Zhang
e9eb52037a crypto: starfive - Correctly handle return of sg_nents_for_len
The return value of sg_nents_for_len was assigned to an unsigned long
in starfive_hash_digest, causing negative error codes to be converted
to large positive integers.

Add error checking for sg_nents_for_len and return immediately on
failure to prevent potential buffer overflows.

Fixes: 7883d1b28a ("crypto: starfive - Add hash and HMAC support")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-22 10:04:49 +08:00
Zilin Guan
76ce17f6f7 crypto: iaa - Fix incorrect return value in save_iaa_wq()
The save_iaa_wq() function unconditionally returns 0, even when an error
is encountered. This prevents the error code from being propagated to the
caller.

Fix this by returning the 'ret' variable, which holds the actual status
of the operations within the function.

Fixes: ea7a5cbb43 ("crypto: iaa - Add Intel IAA Compression Accelerator crypto driver core")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Thorsten Blum
2236fc007a crypto: zstd - Remove unnecessary size_t cast
Use max() instead of max_t() since zstd_cstream_workspace_bound() and
zstd_dstream_workspace_bound() already return size_t and casting the
values is unnecessary.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Thorsten Blum
6cf3260755 crypto: zstd - Annotate struct zstd_ctx with __counted_by
Add the __counted_by() compiler attribute to the flexible array member
'wksp' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Use struct_size(), which provides additional compile-time checks for
structures with flexible array members (e.g., __must_be_array()), for
the allocation size for a new 'zstd_ctx' while we're at it.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Tetsuo Handa
af3852cda3 padata: remove __padata_list_init()
syzbot is reporting possibility of deadlock due to sharing lock_class_key
between padata_init_squeues() and padata_init_reorder_list(). This is a
false positive, for these callers initialize different object. Unshare
lock_class_key by embedding __padata_list_init() into these callers.

Reported-by: syzbot+bd936ccd4339cea66e6b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=bd936ccd4339cea66e6b
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Marco Crivellari
06c489ce5b crypto: qat - add WQ_PERCPU to alloc_workqueue users
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.

alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.

This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")

This change adds a new WQ_PERCPU flag to explicitly request alloc_workqueue()
to be per-cpu when WQ_UNBOUND has not been specified.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.

Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Krzysztof Kozlowski
054c7f7ad3 crypto: cesa - Simplify with of_device_get_match_data()
Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with of_device_get_match_data().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Krzysztof Kozlowski
4ae946a45d crypto: ccp - Simplify with of_device_get_match_data()
Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with of_device_get_match_data().

Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:49 +08:00
Krzysztof Kozlowski
ec2054c124 crypto: ccp - Constify 'dev_vdata' member
sp_device->dev_vdata points to only const data (see 'static const struct
sp_dev_vdata dev_vdata'), so can be made pointer to const for code
safety.

Update also sp_get_acpi_version() function which returns this pointer to
'pointer to const' for code readability, even though it is not needed.

On the other hand, do not touch similar function sp_get_of_version()
because it will be immediately removed in next patches.

Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Krzysztof Kozlowski
c6c247ae33 crypto: artpec6 - Simplify with of_device_get_match_data()
Driver's probe function matches against driver's of_device_id table, so
of_match_node() can be simplified with of_device_get_match_data().

This requires changing the enum used in the driver match data entries to
non-zero, to be able to recognize error case of
of_device_get_match_data().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Krzysztof Kozlowski
6b94eb68ad hwrng: bcm2835 - Simplify with of_device_get_match_data()
Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with of_device_get_match_data().

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Krzysztof Kozlowski
cdd7bbce7b hwrng: bcm2835 - Move MODULE_DEVICE_TABLE() to table definition
Convention is to place MODULE_DEVICE_TABLE() immediately after
definition of the affected table, so one can easily spot missing such.
There is on the other hand no benefits of putting MODULE_DEVICE_TABLE()
far away.

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Marco Crivellari
7e8f232ae8 crypto: cavium/nitrox - add WQ_PERCPU to alloc_workqueue users
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.

alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.

This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")

This change adds a new WQ_PERCPU flag to explicitly request alloc_workqueue()
to be per-cpu when WQ_UNBOUND has not been specified.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.

Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Marco Crivellari
5f8c6c9318 crypto: atmel-i2c - add WQ_PERCPU to alloc_workqueue users
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.

alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.

This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")

This change adds a new WQ_PERCPU flag to explicitly request
alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.

Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Karina Yankevich
d52e9b8843 crypto: rockchip - drop redundant crypto_skcipher_ivsize() calls
The function already initialized the ivsize variable
at the point of declaration, let's use it instead of
calling crypto_skcipher_ivsize() extra couple times.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 57d67c6e82 ("crypto: rockchip - rework by using crypto_engine")
Signed-off-by: Karina Yankevich <k.yankevich@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-14 18:15:48 +08:00
Thorsten Blum
d633730bb3 crypto: octeontx2 - Replace deprecated strcpy in cpt_ucode_load_fw
strcpy() is deprecated; use the safer strscpy() instead.

The destination buffer is only zero-initialized for the first iteration
and since strscpy() guarantees its NUL termination anyway, remove
zero-initializing 'eng_type'.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Thorsten Blum
b6410c1e50 crypto: deflate - Use struct_size to improve deflate_alloc_stream
Use struct_size(), which provides additional compile-time checks for
structures with flexible array members (e.g., __must_be_array()), to
calculate the allocation size for a new 'deflate_stream'.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Mario Limonciello (AMD)
9fc6290117 crypto: ccp - Add support for PCI device 0x115A
PCI device 0x115A is similar to pspv5, except it doesn't have platform
access mailbox support.

Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Gaurav Kashyap
457be301fc crypto: qce - fix version check
The previous version check made it difficult to support newer major
versions (e.g., v6.0) without adding extra checks/macros. Update the
logic to only reject v5.0 and allow future versions without additional
changes.

Signed-off-by: Gaurav Kashyap <gaurav.kashyap@oss.qualcomm.com>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Gaurav Kashyap
5a331d1cd5 dt-bindings: crypto: qcom-qce: Document the kaanapli crypto engine
Document the crypto engine on the kaanapali platform.

Signed-off-by: Gaurav Kashyap <gaurav.kashyap@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Gaurav Kashyap
e74a03e519 dt-bindings: crypto: qcom,prng: Document kaanapali RNG
Document kaanapali compatible for the True Random Number Generator.

Signed-off-by: Gaurav Kashyap <gaurav.kashyap@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Harsh Jain
426b1a1bdf crypto: xilinx - Use %pe to print PTR_ERR
Fix cocci warnings to use %pe to print PTR_ERR().

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@inria.fr>
Closes: https://lore.kernel.org/r/202510231229.Z6TduqZy-lkp@intel.com/
Signed-off-by: Harsh Jain <h.jain@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06 14:31:08 +08:00
Thorsten Blum
d5b59ec33c crypto: qat - use simple_strtoull to improve qat_uclo_parse_num
Replace the manual string copying and parsing logic with a call to
simple_strtoull() to simplify and improve qat_uclo_parse_num().

Ensure that the parsed number does not exceed UINT_MAX, and add an
approximate upper-bound check (no more than 19 digits) to guard against
overflow.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:43 +08:00
nieweiqiang
d912494747 crypto: hisilicon/qm - add missing default in switch in qm_vft_data_cfg
Add default case to avoid warnings and meet code style requirements.

Signed-off-by: nieweiqiang <nieweiqiang@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:43 +08:00
nieweiqiang
51996331f7 crypto: hisilicon/sgl - remove unnecessary checks for curr_hw_sgl error
Before calling acc_get_sgl(), the mem_block has already been
created. acc_get_sgl() will not return NULL or any other error.
so the return value check can be removed.

Signed-off-by: nieweiqiang <nieweiqiang@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:43 +08:00
nieweiqiang
1b5645e454 crypto: hisilicon/qm - add concurrency protection for variable err_threshold
The isolate_strategy_store function is not protected
by a lock. If sysfs operations and functions that depend
on the err_threshold variable,such as qm_hw_err_isolate(),
execute concurrently, the outcome will be unpredictable.
Therefore, concurrency protection should be added for
the err_threshold variable.

Signed-off-by: nieweiqiang <nieweiqiang@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:42 +08:00
nieweiqiang
f5a332980a crypto: hisilicon/qm - add the save operation of eqe and aeqe
The eqe and aeqe are device updated values that include the
valid bit and queue number. In the current process, there is no
memory barrier added, so it cannot be guaranteed that the valid
bit is read before other processes are executed. Since eqe and aeqe
are only 4 bytes and the device writes them to memory in a single
operation, saving the values of eqe and aeqe ensures that the valid
bit and queue number read by the CPU were written by the device
simultaneously.

Signed-off-by: nieweiqiang <nieweiqiang@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:42 +08:00
Bjorn Andersson
f5e297a112 crypto: qce - Provide dev_err_probe() status on DMA failure
On multiple occasions the qce device have shown up in devices_deferred,
without the explanation that this came from the failure to acquire the
DMA channels from the associated BAM.

Use dev_err_probe() to associate this context with the failure to faster
pinpoint the culprit when this happens in the future.

Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:50:42 +08:00
Thorsten Blum
12ad5b2346 keys: Annotate struct asymmetric_key_id with __counted_by
Add the __counted_by() compiler attribute to the flexible array member
'data' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:43:56 +08:00
Rob Herring (Arm)
841940df6f dt-bindings: crypto: amd,ccp-seattle-v1a: Allow 'iommus' property
The AMD Seattle CCP is behind an IOMMU and has 4 entries, so add
the 'iommus' property.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:43:56 +08:00
T Pratham
4fbfd7b206 crypto: ti - Add support for AES-XTS in DTHEv2 driver
Add support for XTS mode of operation for AES algorithm in the AES
Engine of the DTHEv2 hardware cryptographic engine.

Signed-off-by: T Pratham <t-pratham@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:43:56 +08:00
T Pratham
85e1a7ec61 crypto: aead - Add support for on-stack AEAD req allocation
This patch introduces infrastructure for allocating req objects on the
stack for AEADs. The additions mirror the existing sync skcipher APIs.
This can be used in cases where simple sync AEAD operations are being
done. So allocating the request on stack avoides possible out-of-memory
errors.

The struct crypto_sync_aead is a wrapper around crypto_aead and should
be used in its place when sync only requests will be done on the stack.
Correspondingly, the request should be allocated with
SYNC_AEAD_REQUEST_ON_STACK().

Similar to sync_skcipher APIs, the new sync_aead APIs are wrappers
around the regular aead APIs to facilitate sync only operations. The
following crypto APIs are added:
 - struct crypto_sync_aead
 - crypto_alloc_sync_aead()
 - crypto_free_sync_aead()
 - crypto_aync_aead_tfm()
 - crypto_sync_aead_setkey()
 - crypto_sync_aead_setauthsize()
 - crypto_sync_aead_authsize()
 - crypto_sync_aead_maxauthsize()
 - crypto_sync_aead_ivsize()
 - crypto_sync_aead_blocksize()
 - crypto_sync_aead_get_flags()
 - crypto_sync_aead_set_flags()
 - crypto_sync_aead_clear_flags()
 - crypto_sync_aead_reqtfm()
 - aead_request_set_sync_tfm()
 - SYNC_AEAD_REQUEST_ON_STACK()

Signed-off-by: T Pratham <t-pratham@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-31 17:43:56 +08:00
Herbert Xu
275a9a3f9b KEYS: trusted: Pass argument by pointer in dump_options
Instead of passing pkey_info into dump_options by value, using a
pointer instead.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-23 12:55:43 +08:00
nieweiqiang
e7066160f5 crypto: hisilicon/qm - restore original qos values
When the new qos valus setting fails, restore to
the original qos values.

Fixes: 72b010dc33 ("crypto: hisilicon/qm - supports writing QoS int the host")
Signed-off-by: nieweiqiang <nieweiqiang@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-23 12:55:43 +08:00
Herbert Xu
7fc25ed2bc crypto: sun8i-ss - Move j init earlier in sun8i_ss_hash_run
With gcc-14 I get

../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c: In function ‘sun8i_ss_hash_run’:
../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c:631:21: warning: ‘j’ may be used uninitialized [-Wmaybe-uninitialized]
  631 |                 j = hash_pad(bf, 4096, j, byte_count, true, bs);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c:493:13: note: ‘j’ was declared here
  493 |         int j, i, k, todo;
      |             ^

Fix this false positive by moving the initialisation of j earlier.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-23 12:55:43 +08:00
Thorsten Blum
df0845cf44 crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id
Use check_add_overflow() to guard against potential integer overflows
when adding the binary blob lengths and the size of an asymmetric_key_id
structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a
possible buffer overflow when copying data from potentially malicious
X.509 certificate fields that can be arbitrarily large, such as ASN.1
INTEGER serial numbers, issuer names, etc.

Fixes: 7901c1a8ef ("KEYS: Implement binary asymmetric key ID handling")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-23 12:55:42 +08:00
Gopi Krishna Menon
77cd921027 docs: trusted-encrypted: fix htmldocs build error
Running "make htmldocs" generates the following build error and
warning in trusted-encrypted.rst:

Documentation/security/keys/trusted-encrypted.rst:18: ERROR: Unexpected indentation.
Documentation/security/keys/trusted-encrypted.rst:19: WARNING: Block quote ends without a blank line; unexpected unindent.

Add a blank line before bullet list and fix the indentation of text to
fix the build error and resolve the warning.

Fixes: 38f6880759 ("docs: trusted-encrypted: trusted-keys as protected keys")
Signed-off-by: Gopi Krishna Menon <krishnagopi487@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-10-21 11:58:29 +08:00