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The "code_length" value comes from the firmware file. If your firmware
is untrusted realistically there is probably very little you can do to
protect yourself. Still we try to limit the damage as much as possible.
Also Smatch marks any data read from the filesystem as untrusted and
prints warnings if it not capped correctly.
The "ntohl(ucode->code_length) * 2" multiplication can have an
integer overflow.
Fixes: 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fixes the following W=1 kernel build warning(s):
drivers/crypto/cavium/nitrox/nitrox_main.c:41: warning: cannot understand function prototype: 'const struct pci_device_id nitrox_pci_tbl[] = '
drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ndev' not described in 'write_to_ucd_unit'
drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ucode_size' not described in 'write_to_ucd_unit'
drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ucode_data' not described in 'write_to_ucd_unit'
drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'block_num' not described in 'write_to_ucd_unit'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'index' not described in 'incr_index'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'count' not described in 'incr_index'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'max' not described in 'incr_index'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: expecting prototype for Response codes from SE microcode(). Prototype was for incr_index() instead
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:287: warning: Function parameter or member 'cmdq' not described in 'post_se_instr'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: Function parameter or member 'callback' not described in 'nitrox_process_se_request'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: Function parameter or member 'cb_arg' not described in 'nitrox_process_se_request'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: expecting prototype for nitrox_se_request(). Prototype was for nitrox_process_se_request() instead
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:535: warning: Function parameter or member 'cmdq' not described in 'process_response_list'
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:535: warning: expecting prototype for process_request_list(). Prototype was for process_response_list() instead
drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:584: warning: Function parameter or member 'data' not described in 'pkt_slc_resp_tasklet'
drivers/crypto/cavium/nitrox/nitrox_mbx.c:14: warning: cannot understand function prototype: 'enum mbx_msg_type '
drivers/crypto/cavium/nitrox/nitrox_mbx.c:24: warning: cannot understand function prototype: 'enum mbx_msg_opcode '
drivers/crypto/cavium/nitrox/nitrox_skcipher.c:26: warning: cannot understand function prototype: 'const struct nitrox_cipher flexi_cipher_table[] = '
drivers/crypto/cavium/cpt/cptpf_main.c:411: warning: Function parameter or member 'cpt' not described in 'cpt_unload_microcode'
drivers/crypto/cavium/cpt/cptpf_main.c:411: warning: expecting prototype for Ensure all cores are disengaged from all groups by(). Prototype was for cpt_unload_microcode() instead
drivers/crypto/cavium/cpt/cptvf_reqmanager.c:17: warning: Function parameter or member 'q' not described in 'get_free_pending_entry'
drivers/crypto/cavium/cpt/cptvf_reqmanager.c:17: warning: Function parameter or member 'qlen' not described in 'get_free_pending_entry'
Cc: George Cherian <gcherian@marvell.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch fixes a few sparse warnings that were missed in the
last round.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of version 2 of the gnu general public license as
published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 107 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.615055994@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
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cpt_device_init() is never called in atomic context.
The call chain ending up at cpt_device_init() is:
[1] cpt_device_init() <- cpt_probe()
cpt_probe() is only set as ".probe" in pci_driver structure
"cpt_pci_driver".
Despite never getting called from atomic context, cpt_device_init() calls
mdelay(100), i.e. busy wait for 100ms.
That is not necessary and can be replaced with msleep to
avoid busy waiting.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Two return case misses to call release_firmware() and so leak some
memory.
This patch create a fw_release label (and so a common error path)
and use it on all return case.
Detected by CoverityScan, CID#1416422 ("Resource Leak")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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pci_enable_msix has been long deprecated, but this driver adds a new
instance. Convert it to pci_alloc_irq_vectors and greatly simplify
the code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Enable the Physical Function driver for the Cavium Crypto Engine (CPT)
found in Octeon-tx series of SoC's. CPT is the Cryptographic Accelaration
Unit. CPT includes microcoded GigaCypher symmetric engines (SEs) and
asymmetric engines (AEs).
Signed-off-by: George Cherian <george.cherian@cavium.com>
Reviewed-by: David Daney <david.daney@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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