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| author | Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:39:18 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:39:18 +0100 |
| commit | 0b884c22c5b7f6ef985b3d39fed06ad1f8296042 (patch) | |
| tree | 74504e80ad62cb0acabdfa796348d001d5d1a2a4 /drivers/char/tpm/tpm-interface.c | |
| parent | eb49778c8c6cbe075cf90d741ccf16f674a8db4e (diff) | |
| parent | 84e10623c0b9c81557918804f309d66aec86a233 (diff) | |
| download | linux-0b884c22c5b7f6ef985b3d39fed06ad1f8296042.tar.gz linux-0b884c22c5b7f6ef985b3d39fed06ad1f8296042.tar.xz | |
Merge tag 'at24-4.17-updates-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-4.17
"three new special cases for device tree compatible strings"
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 76df4fbcf089..9e80a953d693 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -1190,6 +1190,10 @@ int tpm_get_random(struct tpm_chip *chip, u8 *out, size_t max) break; recd = be32_to_cpu(tpm_cmd.params.getrandom_out.rng_data_len); + if (recd > num_bytes) { + total = -EFAULT; + break; + } rlength = be32_to_cpu(tpm_cmd.header.out.length); if (rlength < offsetof(struct tpm_getrandom_out, rng_data) + |