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  1. 14 12月, 2016 3 次提交
    • A
      crypto: skcipher - fix crash in virtual walk · 18e615ad
      由 Ard Biesheuvel 提交于 
      The new skcipher walk API may crash in the following way. (Interestingly,
the tcrypt boot time tests seem unaffected, while an explicit test using
the module triggers it)

  Unable to handle kernel NULL pointer dereference at virtual address 00000000
  ...
  [<ffff000008431d84>] __memcpy+0x84/0x180
  [<ffff0000083ec0d0>] skcipher_walk_done+0x328/0x340
  [<ffff0000080c5c04>] ctr_encrypt+0x84/0x100
  [<ffff000008406d60>] simd_skcipher_encrypt+0x88/0x98
  [<ffff0000083fa05c>] crypto_rfc3686_crypt+0x8c/0x98
  [<ffff0000009b0900>] test_skcipher_speed+0x518/0x820 [tcrypt]
  [<ffff0000009b31c0>] do_test+0x1408/0x3b70 [tcrypt]
  [<ffff0000009bd050>] tcrypt_mod_init+0x50/0x1000 [tcrypt]
  [<ffff0000080838f4>] do_one_initcall+0x44/0x138
  [<ffff0000081aee60>] do_init_module+0x68/0x1e0
  [<ffff0000081524d0>] load_module+0x1fd0/0x2458
  [<ffff000008152c38>] SyS_finit_module+0xe0/0xf0
  [<ffff0000080836f0>] el0_svc_naked+0x24/0x28

This is due to the fact that skcipher_done_slow() may be entered with
walk->buffer unset. Since skcipher_walk_done() already deals with the
case where walk->buffer == walk->page, it appears to be the intention
that walk->buffer point to walk->page after skcipher_next_slow(), so
ensure that is the case.
Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      18e615ad
    • A
      sign-file: Fix inplace signing when src and dst names are both specified · efcae7c9
      由 Alex Yashchenko 提交于 
      When src and dst both are specified and they point to the same file
the sign-file utility will write only signature to the dst file and
the module (.ko file) body will not be written.
That happens because we open the same file with "rb" and "wb" flags,
from fopen man:

 w      Truncate file to zero length or create text file for writing.
The stream is positioned at the beginning of the file.
...
	bm = BIO_new_file(module_name, "rb");
...
	bd = BIO_new_file(dest_name, "wb");
...
	while ((n = BIO_read(bm, buf, sizeof(buf))),
	       n > 0) {
		ERR(BIO_write(bd, buf, n) < 0, "%s", dest_name);
	}
...
Signed-off-by: NAlex Yashchenko <alexhoppus111@gmail.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      efcae7c9
    • P
      crypto: asymmetric_keys - set error code on failure · fbb72630
      由 Pan Bian 提交于 
      In function public_key_verify_signature(), returns variable ret on
error paths. When the call to kmalloc() fails, the value of ret is 0,
and it is not set to an errno before returning. This patch fixes the
bug.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188891Signed-off-by: NPan Bian <bianpan2016@163.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      fbb72630
  3. 08 12月, 2016 1 次提交
  5. 07 12月, 2016 8 次提交
  7. 01 12月, 2016 11 次提交
  9. 30 11月, 2016 17 次提交