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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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Pull crypto fix from Herbert Xu:
 "This fixes a regression caused by the stack vmalloc change"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: core - Don't use a stack buffer in add_early_randomness()
This commit is contained in:
Linus Torvalds 2016-10-24 21:34:13 -07:00
parent b5cd891716 6d4952d9d9
commit 9fe68cad6e
1 changed files with 3 additions and 3 deletions
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6
drivers/char/hw_random/core.c
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@ -84,14 +84,14 @@ static size_t rng_buffer_size(void)
static void add_early_randomness(struct hwrng *rng)
{
unsigned char bytes[16];
int bytes_read;
size_t size = min_t(size_t, 16, rng_buffer_size());
mutex_lock(&reading_mutex);
bytes_read = rng_get_data(rng, bytes, sizeof(bytes), 1);
bytes_read = rng_get_data(rng, rng_buffer, size, 1);
mutex_unlock(&reading_mutex);
if (bytes_read > 0)
add_device_randomness(bytes, bytes_read);
add_device_randomness(rng_buffer, bytes_read);
}
static inline void cleanup_rng(struct kref *kref)