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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-03-14 20:23:25 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-03-14 20:23:25 +0100 |
| commit | 745dd37f9d67c75d6cf1a1bebfcca71bdeb7a34c (patch) | |
| tree | e556543ed86b7f49e4972d8ea048ff9e46592b4d /drivers/char/tpm/tpm-interface.c | |
| parent | 02428742639bc3300c8c527b054d0ec0bdf5571d (diff) | |
| parent | 18a955219bf7d9008ce480d4451b6b8bf4483a22 (diff) | |
Merge branch 'x86/urgent' into x86/mm to pick up dependencies
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) + |