[PATCH] tpm: use kmemdup() to copy the EFI event log

From: Jarkko Sakkinen
Date: Mon Feb 19 2018 - 07:10:37 EST


Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
---
drivers/char/tpm/tpm_eventlog_efi.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_eventlog_efi.c b/drivers/char/tpm/tpm_eventlog_efi.c
index e3f9ffd341d2..57c8b3cc46be 100644
--- a/drivers/char/tpm/tpm_eventlog_efi.c
+++ b/drivers/char/tpm/tpm_eventlog_efi.c
@@ -50,10 +50,9 @@ int tpm_read_log_efi(struct tpm_chip *chip)
}

/* malloc EventLog space */
- log->bios_event_log = kmalloc(log_size, GFP_KERNEL);
+ log->bios_event_log = kmemdup(log_tbl->log, log_size, GFP_KERNEL);
if (!log->bios_event_log)
goto err_memunmap;
- memcpy(log->bios_event_log, log_tbl->log, log_size);
log->bios_event_log_end = log->bios_event_log + log_size;

tpm_log_version = log_tbl->version;
--
2.14.1