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| author | Borislav Petkov <bp@suse.de> | 2020-05-22 20:06:25 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-05-22 20:06:25 +0200 |
| commit | 9bb4cbf4862dfa139f73e12912129e5b76baea1a (patch) | |
| tree | 281445c282163ff286d7eb5b6b60f1a5eb608625 /drivers/firmware/efi/tpm.c | |
| parent | b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce (diff) | |
| parent | b4f1874c62168159fdb419ced4afc77c1b51c475 (diff) | |
| download | lwn-9bb4cbf4862dfa139f73e12912129e5b76baea1a.tar.gz lwn-9bb4cbf4862dfa139f73e12912129e5b76baea1a.zip | |
Merge tag 'efi-fixes-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent
Pull EFI fixes from Ard Biesheuvel:
"- fix EFI framebuffer earlycon for wide fonts
- avoid filling screen_info with garbage if the EFI framebuffer is not
available
- fix a potential host tool build error due to a symbol clash on x86
- work around a EFI firmware bug regarding the binary format of the TPM
final events table
- fix a missing memory free by reworking the E820 table sizing routine to
not do the allocation in the first place
- add CPER parsing for firmware errors"
Diffstat (limited to 'drivers/firmware/efi/tpm.c')
| -rw-r--r-- | drivers/firmware/efi/tpm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c index 55b031d2c989..c1955d320fec 100644 --- a/drivers/firmware/efi/tpm.c +++ b/drivers/firmware/efi/tpm.c @@ -62,8 +62,11 @@ int __init efi_tpm_eventlog_init(void) tbl_size = sizeof(*log_tbl) + log_tbl->size; memblock_reserve(efi.tpm_log, tbl_size); - if (efi.tpm_final_log == EFI_INVALID_TABLE_ADDR) + if (efi.tpm_final_log == EFI_INVALID_TABLE_ADDR || + log_tbl->version != EFI_TCG2_EVENT_LOG_FORMAT_TCG_2) { + pr_warn(FW_BUG "TPM Final Events table missing or invalid\n"); goto out; + } final_tbl = early_memremap(efi.tpm_final_log, sizeof(*final_tbl)); |