]> git.baikalelectronics.ru Git - kernel.git/commit
random: zero buffer after reading entropy from userspace
authorJason A. Donenfeld <Jason@zx2c4.com>
Wed, 9 Feb 2022 17:42:13 +0000 (18:42 +0100)
committerJason A. Donenfeld <Jason@zx2c4.com>
Mon, 21 Feb 2022 20:14:00 +0000 (21:14 +0100)
commit05a1b76d06419da7c50daf35528cdd9e10d82e90
treeb733a6458feeaa478acc849f5d238c397accaaa5
parent2a3cada51937fac8532a88de2731f7a93898c70a
random: zero buffer after reading entropy from userspace

This buffer may contain entropic data that shouldn't stick around longer
than needed, so zero out the temporary buffer at the end of write_pool().

Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Jann Horn <jannh@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
drivers/char/random.c