1. 19 Jun, 2019 1 commit
  2. 17 Oct, 2016 1 commit
    • Ard Biesheuvel's avatar
      mac80211: move struct aead_req off the stack · f4a067f9
      Ard Biesheuvel authored
      Some crypto implementations (such as the generic CCM wrapper in crypto/)
      use scatterlists to map fields of private data in their struct aead_req.
      This means these data structures cannot live in the vmalloc area, which
      means that they cannot live on the stack (with CONFIG_VMAP_STACK.)
      
      This currently occurs only with the generic software implementation, but
      the private data and usage is implementation specific, so move the whole
      data structures off the stack into heap by allocating every time we need
      to use them.
      
      In addition, take care not to put any of our own stack allocations into
      scatterlists. This involves reserving some extra room when allocating the
      aead_request structures, and referring to those allocations in the scatter-
      lists (while copying the data from the stack before the crypto operation)
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      f4a067f9
  3. 28 May, 2015 1 commit
  4. 23 Apr, 2015 1 commit
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  6. 27 Jan, 2015 1 commit