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  1. 11 10月, 2017 1 次提交
  3. 07 10月, 2017 1 次提交
    • J
      crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned · 9039f3ef
      由 Jia-Ju Bai 提交于 
      The SCTP program may sleep under a spinlock, and the function call path is:
sctp_generate_t3_rtx_event (acquire the spinlock)
  sctp_do_sm
    sctp_side_effects
      sctp_cmd_interpreter
        sctp_make_init_ack
          sctp_pack_cookie
            crypto_shash_setkey
              shash_setkey_unaligned
                kmalloc(GFP_KERNEL)

For the same reason, the orinoco driver may sleep in interrupt handler,
and the function call path is:
orinoco_rx_isr_tasklet
  orinoco_rx
    orinoco_mic
      crypto_shash_setkey
        shash_setkey_unaligned
          kmalloc(GFP_KERNEL)

To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool and my code review.
Signed-off-by: NJia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      9039f3ef
  5. 13 1月, 2017 1 次提交
    • G
      crypto: Replaced gcc specific attributes with macros from compiler.h · d8c34b94
      由 Gideon Israel Dsouza 提交于 
      Continuing from this commit: 52f5684c
("kernel: use macros from compiler.h instead of __attribute__((...))")

I submitted 4 total patches. They are part of task I've taken up to
increase compiler portability in the kernel. I've cleaned up the
subsystems under /kernel /mm /block and /security, this patch targets
/crypto.

There is <linux/compiler.h> which provides macros for various gcc specific
constructs. Eg: __weak for __attribute__((weak)). I've cleaned all
instances of gcc specific attributes with the right macros for the crypto
subsystem.

I had to make one additional change into compiler-gcc.h for the case when
one wants to use this: __attribute__((aligned) and not specify an alignment
factor. From the gcc docs, this will result in the largest alignment for
that data type on the target machine so I've named the macro
__aligned_largest. Please advise if another name is more appropriate.
Signed-off-by: NGideon Israel Dsouza <gidisrael@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      d8c34b94
  7. 06 2月, 2016 1 次提交
  9. 27 1月, 2016 1 次提交
  11. 18 1月, 2016 1 次提交
  13. 21 4月, 2015 1 次提交
  15. 08 6月, 2014 1 次提交
  17. 19 2月, 2013 1 次提交
    • M
      crypto: user - fix info leaks in report API · 9a5467bf
      由 Mathias Krause 提交于 
      Three errors resulting in kernel memory disclosure:

1/ The structures used for the netlink based crypto algorithm report API
are located on the stack. As snprintf() does not fill the remainder of
the buffer with null bytes, those stack bytes will be disclosed to users
of the API. Switch to strncpy() to fix this.

2/ crypto_report_one() does not initialize all field of struct
crypto_user_alg. Fix this to fix the heap info leak.

3/ For the module name we should copy only as many bytes as
module_name() returns -- not as much as the destination buffer could
hold. But the current code does not and therefore copies random data
from behind the end of the module name, as the module name is always
shorter than CRYPTO_MAX_ALG_NAME.

Also switch to use strncpy() to copy the algorithm's name and
driver_name. They are strings, after all.
Signed-off-by: NMathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      9a5467bf
  19. 01 8月, 2012 1 次提交
  21. 02 4月, 2012 1 次提交
  23. 20 3月, 2012 1 次提交
  25. 11 11月, 2011 1 次提交
  27. 21 10月, 2011 1 次提交
  29. 05 11月, 2010 1 次提交
  31. 19 5月, 2010 1 次提交
  33. 24 7月, 2009 1 次提交
  35. 22 7月, 2009 1 次提交
    • H
      crypto: shash - Require all algorithms to support export/import · f592682f
      由 Herbert Xu 提交于 
      This patch provides a default export/import function for all
shash algorithms.  It simply copies the descriptor context as
is done by sha1_generic.

This in essence means that all existing shash algorithms now
support export/import.  This is something that will be depended
upon in implementations such as hmac.  Therefore all new shash
and ahash implementations must support export/import.

For those that cannot obtain a partial result, padlock-sha's
fallback model should be used so that a partial result is always
available.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      f592682f
  37. 15 7月, 2009 2 次提交
  39. 14 7月, 2009 7 次提交
  41. 12 7月, 2009 1 次提交
  43. 11 7月, 2009 2 次提交
  45. 08 7月, 2009 6 次提交
  47. 27 3月, 2009 1 次提交
  49. 18 2月, 2009 2 次提交
    • H
      crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention · 3f683d61
      由 Herbert Xu 提交于 
      This is based on a report and patch by Geert Uytterhoeven.

The functions crypto_alloc_tfm and create_create_tfm return a
pointer that needs to be adjusted by the caller when successful
and otherwise an error value.  This means that the caller has
to check for the error and only perform the adjustment if the
pointer returned is valid.

Since all callers want to make the adjustment and we know how
to adjust it ourselves, it's much easier to just return adjusted
pointer directly.

The only caveat is that we have to return a void * instead of
struct crypto_tfm *.  However, this isn't that bad because both
of these functions are for internal use only (by types code like
shash.c, not even algorithms code).

This patch also moves crypto_alloc_tfm into crypto/internal.h
(crypto_create_tfm is already there) to reflect this.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      3f683d61
    • H
      crypto: shash - Remove superfluous check in init_tfm · 1693531e
      由 Herbert Xu 提交于 
      We're currently checking the frontend type in init_tfm.  This is
completely pointless because the fact that we're called at all
means that the frontend is ours so the type must match as well.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      1693531e
  51. 05 2月, 2009 1 次提交