diff options
| -rw-r--r-- | drivers/firmware/efi/tpm.c | 9 | ||||
| -rw-r--r-- | include/linux/tpm_eventlog.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c index b9ae5c6f9b9c..703469c1ab8e 100644 --- a/drivers/firmware/efi/tpm.c +++ b/drivers/firmware/efi/tpm.c @@ -85,11 +85,18 @@ int __init efi_tpm_eventlog_init(void) final_tbl->nr_events, log_tbl->log); } + + if (tbl_size < 0) { + pr_err(FW_BUG "Failed to parse event in TPM Final Events Log\n"); + goto out_calc; + } + memblock_reserve((unsigned long)final_tbl, tbl_size + sizeof(*final_tbl)); - early_memunmap(final_tbl, sizeof(*final_tbl)); efi_tpm_final_log_size = tbl_size; +out_calc: + early_memunmap(final_tbl, sizeof(*final_tbl)); out: early_memunmap(log_tbl, sizeof(*log_tbl)); return ret; diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h index b50cc3adca18..131ea1bad458 100644 --- a/include/linux/tpm_eventlog.h +++ b/include/linux/tpm_eventlog.h @@ -152,7 +152,7 @@ struct tcg_algorithm_info { * total. Once we've done this we know the offset of the data length field, * and can calculate the total size of the event. * - * Return: size of the event on success, <0 on failure + * Return: size of the event on success, 0 on failure */ static inline int __calc_tpm2_event_size(struct tcg_pcr_event2_head *event, |