- 15 4月, 2016 6 次提交
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由 Steffen Trumtrar 提交于
According to the Freescale GPL driver code, there are two different Security Controller (SCC) versions: SCC and SCC2. The SCC is found on older i.MX SoCs, e.g. the i.MX25. This is the version implemented and tested here. As there is no publicly available documentation for this IP core, all information about this unit is gathered from the GPL'ed driver from Freescale. Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Steffen Trumtrar 提交于
Add the Security Controller (SCC) module to the dtsi. Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Steffen Trumtrar 提交于
Add documentation for the Freescale Security Controller (SCC) found on i.MX25 SoCs. Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de> Acked-by: NRob Herring <robh@kernel.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tadeusz Struk 提交于
VFs call adf_dev_stop() from a PF to VF interrupt bottom half. This causes an oops "scheduling while atomic", because it tries to acquire a mutex to un-register crypto algorithms. This patch fixes the issue by calling adf_dev_stop() asynchronously. Changes in v2: - change kthread to a work queue. Signed-off-by: NTadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Mike Galbraith 提交于
Direct include of rwlock_types.h breaks RT, use spinlock_types.h instead. Fixes: 553d2374 crypto: ccp - Support for multiple CCPs Signed-off-by: NMike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Eric Biggers 提交于
Signed-off-by: NEric Biggers <ebiggers3@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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- 05 4月, 2016 34 次提交
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由 Krzysztof Kozlowski 提交于
Correct smasung.com into samsung.com. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tadeusz Struk 提交于
It returns always zero anyway. Signed-off-by: NTadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tadeusz Struk 提交于
When stopping devices it is not enought to loop backwards. We need to explicitly stop all VFs first. Signed-off-by: NTadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Stephan Mueller 提交于
The HMAC implementation allows setting the HMAC key independently from the hashing operation. Therefore, the key only needs to be set when a new key is generated. This patch increases the speed of the HMAC DRBG by at least 35% depending on the use case. The patch is fully CAVS tested. Signed-off-by: NStephan Mueller <smueller@chronox.de> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Corentin LABBE 提交于
The current sun4i-ss driver could generate data corruption when ciphering/deciphering. It occurs randomly on end of handled data. No root cause have been found and the only way to remove it is to replace all spin_lock_bh by their irq counterparts. Fixes: 6298e948 ("crypto: sunxi-ss - Add Allwinner Security System crypto accelerator") Signed-off-by: NLABBE Corentin <clabbe.montjoie@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tudor Ambarus 提交于
Signed-off-by: NTudor Ambarus <tudor-dan.ambarus@nxp.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tudor Ambarus 提交于
memcopying to a (null pointer + offset) will result in memory corruption or undefined behaviour. Signed-off-by: NTudor Ambarus <tudor-dan.ambarus@nxp.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Ahsan Atta 提交于
Remove redundant nrbg rings. Signed-off-by: NAhsan Atta <ahsan.atta@intel.com> Signed-off-by: NTadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tadeusz Struk 提交于
FW requires the const_tab to be 1024 bytes aligned. Signed-off-by: NTadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Within the copying loop in mpi_read_raw_from_sgl(), the last input SGE's byte count gets artificially extended as follows: if (sg_is_last(sg) && (len % BYTES_PER_MPI_LIMB)) len += BYTES_PER_MPI_LIMB - (len % BYTES_PER_MPI_LIMB); Within the following byte copying loop, this causes reads beyond that SGE's allocated buffer: BUG: KASAN: slab-out-of-bounds in mpi_read_raw_from_sgl+0x331/0x650 at addr ffff8801e168d4d8 Read of size 1 by task systemd-udevd/721 [...] Call Trace: [<ffffffff818c4d35>] dump_stack+0xbc/0x117 [<ffffffff818c4c79>] ? _atomic_dec_and_lock+0x169/0x169 [<ffffffff814af5d1>] ? print_section+0x61/0xb0 [<ffffffff814b1109>] print_trailer+0x179/0x2c0 [<ffffffff814bc524>] object_err+0x34/0x40 [<ffffffff814bfdc7>] kasan_report_error+0x307/0x8c0 [<ffffffff814bf315>] ? kasan_unpoison_shadow+0x35/0x50 [<ffffffff814bf38e>] ? kasan_kmalloc+0x5e/0x70 [<ffffffff814c0ad1>] kasan_report+0x71/0xa0 [<ffffffff81938171>] ? mpi_read_raw_from_sgl+0x331/0x650 [<ffffffff814bf1a6>] __asan_load1+0x46/0x50 [<ffffffff81938171>] mpi_read_raw_from_sgl+0x331/0x650 [<ffffffff817f41b6>] rsa_verify+0x106/0x260 [<ffffffff817f40b0>] ? rsa_set_pub_key+0xf0/0xf0 [<ffffffff818edc79>] ? sg_init_table+0x29/0x50 [<ffffffff817f4d22>] ? pkcs1pad_sg_set_buf+0xb2/0x2e0 [<ffffffff817f5b74>] pkcs1pad_verify+0x1f4/0x2b0 [<ffffffff81831057>] public_key_verify_signature+0x3a7/0x5e0 [<ffffffff81830cb0>] ? public_key_describe+0x80/0x80 [<ffffffff817830f0>] ? keyring_search_aux+0x150/0x150 [<ffffffff818334a4>] ? x509_request_asymmetric_key+0x114/0x370 [<ffffffff814b83f0>] ? kfree+0x220/0x370 [<ffffffff818312c2>] public_key_verify_signature_2+0x32/0x50 [<ffffffff81830b5c>] verify_signature+0x7c/0xb0 [<ffffffff81835d0c>] pkcs7_validate_trust+0x42c/0x5f0 [<ffffffff813c391a>] system_verify_data+0xca/0x170 [<ffffffff813c3850>] ? top_trace_array+0x9b/0x9b [<ffffffff81510b29>] ? __vfs_read+0x279/0x3d0 [<ffffffff8129372f>] mod_verify_sig+0x1ff/0x290 [...] The exact purpose of the len extension isn't clear to me, but due to its form, I suspect that it's a leftover somehow accounting for leading zero bytes within the most significant output limb. Note however that without that len adjustement, the total number of bytes ever processed by the inner loop equals nbytes and thus, the last output limb gets written at this point. Thus the net effect of the len adjustement cited above is just to keep the inner loop running for some more iterations, namely < BYTES_PER_MPI_LIMB ones, reading some extra bytes from beyond the last SGE's buffer and discarding them afterwards. Fix this issue by purging the extension of len beyond the last input SGE's buffer length. Fixes: 2d4d1eea ("lib/mpi: Add mpi sgl helpers") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Within the byte reading loop in mpi_read_raw_sgl(), there are two housekeeping indices used, z and x. At all times, the index z represents the number of output bytes covered by the input SGEs for which processing has completed so far. This includes any leading zero bytes within the most significant limb. The index x changes its meaning after the first outer loop's iteration though: while processing the first input SGE, it represents "number of leading zero bytes in most significant output limb" + "current position within current SGE" For the remaining SGEs OTOH, x corresponds just to "current position within current SGE" After all, it is only the sum of z and x that has any meaning for the output buffer and thus, the "number of leading zero bytes in most significant output limb" part can be moved away from x into z from the beginning, opening up the opportunity for cleaner code. Before the outer loop iterating over the SGEs, don't initialize z with zero, but with the number of leading zero bytes in the most significant output limb. For the inner loop iterating over a single SGE's bytes, get rid of the buf_shift offset to x' bounds and let x run from zero to sg->length - 1. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
The number of bits, nbits, is calculated in mpi_read_raw_from_sgl() as follows: nbits = nbytes * 8; Afterwards, the number of leading zero bits of the first byte get subtracted: nbits -= count_leading_zeros(*(u8 *)(sg_virt(sgl) + lzeros)); However, count_leading_zeros() takes an unsigned long and thus, the u8 gets promoted to an unsigned long. Thus, the above doesn't subtract the number of leading zeros in the most significant nonzero input byte from nbits, but the number of leading zeros of the most significant nonzero input byte promoted to unsigned long, i.e. BITS_PER_LONG - 8 too many. Fix this by subtracting count_leading_zeros(...) - (BITS_PER_LONG - 8) from nbits only. Fixes: 2d4d1eea ("lib/mpi: Add mpi sgl helpers") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
In mpi_read_raw_from_sgl(), unsigned nbits is calculated as follows: nbits = nbytes * 8; and redundantly cleared later on if nbytes == 0: if (nbytes > 0) ... else nbits = 0; Purge this redundant clearing for the sake of clarity. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
At the very beginning of mpi_read_raw_from_sgl(), the leading zeros of the input scatterlist are counted: lzeros = 0; for_each_sg(sgl, sg, ents, i) { ... if (/* sg contains nonzero bytes */) break; /* sg contains nothing but zeros here */ ents--; lzeros = 0; } Later on, the total number of trailing nonzero bytes is calculated by subtracting the number of leading zero bytes from the total number of input bytes: nbytes -= lzeros; However, since lzeros gets reset to zero for each completely zero leading sg in the loop above, it doesn't include those. Besides wasting resources by allocating a too large output buffer, this mistake propagates into the calculation of x, the number of leading zeros within the most significant output limb: x = BYTES_PER_MPI_LIMB - nbytes % BYTES_PER_MPI_LIMB; What's more, the low order bytes of the output, equal in number to the extra bytes in nbytes, are left uninitialized. Fix this by adjusting nbytes for each completely zero leading scatterlist entry. Fixes: 2d4d1eea ("lib/mpi: Add mpi sgl helpers") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, the nbytes local variable is calculated from the len argument as follows: ... mpi_read_raw_from_sgl(..., unsigned int len) { unsigned nbytes; ... if (!ents) nbytes = 0; else nbytes = len - lzeros; ... } Given that nbytes is derived from len in a trivial way and that the len argument is shadowed by a local len variable in several loops, this is just confusing. Rename the len argument to nbytes and get rid of the nbytes local variable. Do the nbytes calculation in place. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, mpi_read_buffer() writes full limbs to the output buffer and moves memory around to purge leading zero limbs afterwards. However, with commit 9cbe21d8 ("lib/mpi: only require buffers as big as needed for the integer") the caller is only required to provide a buffer large enough to hold the result without the leading zeros. This might result in a buffer overflow for small MP numbers with leading zeros. Fix this by coping the result to its final destination within the output buffer and not copying the leading zeros at all. Fixes: 9cbe21d8 ("lib/mpi: only require buffers as big as needed for the integer") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, the endian conversion from CPU order to BE is open coded in mpi_read_buffer(). Replace this by the centrally provided cpu_to_be*() macros. Copy from the temporary storage on stack to the destination buffer by means of memcpy(). Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, if the number of leading zeros is greater than fits into a complete limb, mpi_read_buffer() skips them by iterating over them limb-wise. Instead of skipping the high order zero limbs within the loop as shown above, adjust the copying loop's bounds. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, the endian conversion from CPU order to BE is open coded in mpi_write_sgl(). Replace this by the centrally provided cpu_to_be*() macros. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Within the copying loop in mpi_write_sgl(), we have if (lzeros) { mpi_limb_t *limb1 = (void *)p - sizeof(alimb); mpi_limb_t *limb2 = (void *)p - sizeof(alimb) + lzeros; *limb1 = *limb2; ... } where p points past the end of alimb2 which lives on the stack and contains the current limb in BE order. The purpose of the above is to shift the non-zero bytes of alimb2 to its beginning in memory, i.e. to skip its leading zero bytes. However, limb2 points somewhere into the middle of alimb2 and thus, reading *limb2 pulls in lzero bytes from somewhere. Indeed, KASAN splats: BUG: KASAN: stack-out-of-bounds in mpi_write_to_sgl+0x4e3/0x6f0 at addr ffff8800cb04f601 Read of size 8 by task systemd-udevd/391 page:ffffea00032c13c0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x3fff8000000000() page dumped because: kasan: bad access detected CPU: 3 PID: 391 Comm: systemd-udevd Tainted: G B L 4.5.0-next-20160316+ #12 [...] Call Trace: [<ffffffff8194889e>] dump_stack+0xdc/0x15e [<ffffffff819487c2>] ? _atomic_dec_and_lock+0xa2/0xa2 [<ffffffff814892b5>] ? __dump_page+0x185/0x330 [<ffffffff8150ffd6>] kasan_report_error+0x5e6/0x8b0 [<ffffffff814724cd>] ? kzfree+0x2d/0x40 [<ffffffff819c5bce>] ? mpi_free_limb_space+0xe/0x20 [<ffffffff819c469e>] ? mpi_powm+0x37e/0x16f0 [<ffffffff815109f1>] kasan_report+0x71/0xa0 [<ffffffff819c0353>] ? mpi_write_to_sgl+0x4e3/0x6f0 [<ffffffff8150ed34>] __asan_load8+0x64/0x70 [<ffffffff819c0353>] mpi_write_to_sgl+0x4e3/0x6f0 [<ffffffff819bfe70>] ? mpi_set_buffer+0x620/0x620 [<ffffffff819c0e6f>] ? mpi_cmp+0xbf/0x180 [<ffffffff8186e282>] rsa_verify+0x202/0x260 What's more, since lzeros can be anything from 1 to sizeof(mpi_limb_t)-1, the above will cause unaligned accesses which is bad on non-x86 archs. Fix the issue, by preparing the starting point p for the upcoming copy operation instead of shifting the source memory, i.e. alimb2. Fixes: 2d4d1eea ("lib/mpi: Add mpi sgl helpers") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Within the copying loop in mpi_write_sgl(), we have if (lzeros) { ... p -= lzeros; y = lzeros; } p = p - (sizeof(alimb) - y); If lzeros == 0, then y == 0, too. Thus, lzeros gets subtracted and added back again to p. Purge this redundancy. Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Within the copying loop in mpi_write_sgl(), we have if (lzeros > 0) { ... lzeros -= sizeof(alimb); } However, at this point, lzeros < sizeof(alimb) holds. Make this fact explicit by rewriting the above to if (lzeros) { ... lzeros = 0; } Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Nicolai Stange 提交于
Currently, if the number of leading zeros is greater than fits into a complete limb, mpi_write_sgl() skips them by iterating over them limb-wise. However, it fails to adjust its internal leading zeros tracking variable, lzeros, accordingly: it does a p -= sizeof(alimb); continue; which should really have been a lzeros -= sizeof(alimb); continue; Since lzeros never decreases if its initial value >= sizeof(alimb), nothing gets copied by mpi_write_sgl() in that case. Instead of skipping the high order zero limbs within the loop as shown above, fix the issue by adjusting the copying loop's bounds. Fixes: 2d4d1eea ("lib/mpi: Add mpi sgl helpers") Signed-off-by: NNicolai Stange <nicstange@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Sort the headers alphabetically to improve readability and to spot duplications easier. Suggested-by: NVladimir Zapolskiy <vz@mleia.com> Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: NVladimir Zapolskiy <vz@mleia.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
During crypto selftests on Odroid XU3 (Exynos5422) some of the algorithms failed because of passing AES-block unaligned source and destination buffers: alg: skcipher: encryption failed on chunk test 1 for ecb-aes-s5p: ret=22 Handle such case by copying the buffers to a new aligned and contiguous space. Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org> Acked-by: NVladimir Zapolskiy <vz@mleia.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Remove unneeded inclusion of delay.h and get rid of indentation from labels. Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org> Acked-by: NVladimir Zapolskiy <vz@mleia.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Tom Lendacky 提交于
Gary will be taking over future development of the CCP driver, so add him as a co-maintainer of the driver. Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com> Acked-by: NGary Hook <gary.hook@amd.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Dan Carpenter 提交于
creq->cache[] is an array inside the struct, it's not a pointer and it can't be NULL. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Acked-by: NBoris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Colin Ian King 提交于
The OID_sha224 case is missing a break and it falls through to the -ENOPKG error default. Since HASH_ALGO_SHA224 seems to be supported, this looks like an unintentional missing break. Fixes: 07f081fb ("PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them") Cc: <stable@vger.kernel.org> # 4.2+ Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Amitoj Kaur Chawla 提交于
Return statement at the end of a void function is useless. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @@ identifier f; expression e; @@ void f(...) { <... - return e; ...> } //</smpl> Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Get some build coverage of S5P/Exynos AES H/W acceleration driver. Driver uses DMA and devm_ioremap_resource() so add DMA and IOMEM dependencies for the compile testing. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: NVladimir Zapolskiy <vz@mleia.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Get some build coverage of Exynos H/W random number generator driver. Driver uses devm_ioremap_resource() so add IOMEM dependency for the compile testing. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Driver enabled runtime PM but did not revert this on removal. Re-binding of a device triggered warning: exynos-rng 10830400.rng: Unbalanced pm_runtime_enable! Fixes: b329669e ("hwrng: exynos - Add support for Exynos random number generator") Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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由 Krzysztof Kozlowski 提交于
Add proper error path (for disabling runtime PM) when registering of hwrng fails. Fixes: b329669e ("hwrng: exynos - Add support for Exynos random number generator") Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
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