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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2020-02-21 09:48:49 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-02-26 15:31:43 +0100 |
| commit | be36f9e7517e17810ec369626a128d7948942259 (patch) | |
| tree | 6e406504b5c2be8fd04d103a9a601ec0fa1da316 /scripts/basic | |
| parent | efi/x86: Handle by-ref arguments covering multiple pages in mixed mode (diff) | |
| download | linux-be36f9e7517e17810ec369626a128d7948942259.tar.gz linux-be36f9e7517e17810ec369626a128d7948942259.zip | |
efi: READ_ONCE rng seed size before munmap
This function is consistent with using size instead of seed->size
(except for one place that this patch fixes), but it reads seed->size
without using READ_ONCE, which means the compiler might still do
something unwanted. So, this commit simply adds the READ_ONCE
wrapper.
Fixes: 636259880a7e ("efi: Add support for seeding the RNG from a UEFI ...")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200217123354.21140-1-Jason@zx2c4.com
Link: https://lore.kernel.org/r/20200221084849.26878-5-ardb@kernel.org
Diffstat (limited to 'scripts/basic')
0 files changed, 0 insertions, 0 deletions