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Updates for secure boot

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This commit is contained in:
Justin M. Forbes 2019-01-07 15:09:43 -06:00
parent 27b219978f
commit cc1db7f347
8 changed files with 34 additions and 41 deletions
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49
0001-Make-get_cert_list-not-complain-about-cert-lists-tha.patch
View File

@ -6,27 +6,27 @@ Subject: [PATCH 1/3] Make get_cert_list() not complain about cert lists that
Signed-off-by: Peter Jones <pjones@redhat.com>
---
certs/load_uefi.c | 37 ++++++++++++++++++++++---------------
security/integrity/platform_certs/load_uefi.c | 37 ++++++++++++++++++++++---------------
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/certs/load_uefi.c b/certs/load_uefi.c
index 3d884598601..9ef34c44fd1 100644
--- a/certs/load_uefi.c
+++ b/certs/load_uefi.c
@@ -35,8 +35,8 @@ static __init bool uefi_check_ignore_db(void)
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
index 81b19c52832b..e188f3ecbce3 100644
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -38,8 +38,8 @@ static __init bool uefi_check_ignore_db(void)
/*
* Get a certificate list blob from the named EFI variable.
*/
-static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
- unsigned long *size)
+static __init int get_cert_list(efi_char16_t *name, efi_guid_t *guid,
+ unsigned long *size, void **cert_list)
+ unsigned long *size , void **cert_list)
{
efi_status_t status;
unsigned long lsize = 4;
@@ -44,26 +44,33 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
@@ -47,24 +47,31 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
void *db;
status = efi.get_variable(name, guid, NULL, &lsize, &tmpdb);
+ if (status == EFI_NOT_FOUND) {
+ *size = 0;
@ -39,14 +39,12 @@ index 3d884598601..9ef34c44fd1 100644
- return NULL;
+ return efi_status_to_err(status);
}
db = kmalloc(lsize, GFP_KERNEL);
if (!db) {
pr_err("Couldn't allocate memory for uefi cert list\n");
if (!db)
- return NULL;
+ return -ENOMEM;
}
status = efi.get_variable(name, guid, NULL, &lsize, db);
if (status != EFI_SUCCESS) {
kfree(db);
@ -54,15 +52,15 @@ index 3d884598601..9ef34c44fd1 100644
- return NULL;
+ return efi_status_to_err(status);
}
*size = lsize;
- return db;
+ *cert_list = db;
+ return 0;
}
/*
@@ -152,10 +159,10 @@ static int __init load_uefi_certs(void)
@@ -153,10 +160,10 @@ static int __init load_uefi_certs(void)
* an error if we can't get them.
*/
if (!uefi_check_ignore_db()) {
@ -74,36 +72,33 @@ index 3d884598601..9ef34c44fd1 100644
- } else {
+ } else if (dbsize != 0) {
rc = parse_efi_signature_list("UEFI:db",
db, dbsize, get_handler_for_db);
db, dbsize, get_handler_for_db);
if (rc)
@@ -164,10 +171,10 @@ static int __init load_uefi_certs(void)
@@ -166,10 +173,10 @@ static int __init load_uefi_certs(void)
}
}
- mok = get_cert_list(L"MokListRT", &mok_var, &moksize);
- if (!mok) {
+ rc = get_cert_list(L"MokListRT", &mok_var, &moksize, &mok);
+ if (rc < 0) {
pr_info("MODSIGN: Couldn't get UEFI MokListRT\n");
pr_info("Couldn't get UEFI MokListRT\n");
- } else {
+ } else if (moksize != 0) {
rc = parse_efi_signature_list("UEFI:MokListRT",
mok, moksize, get_handler_for_db);
if (rc)
@@ -175,10 +182,10 @@ static int __init load_uefi_certs(void)
@@ -177,10 +184,10 @@ static int __init load_uefi_certs(void)
kfree(mok);
}
- dbx = get_cert_list(L"dbx", &secure_var, &dbxsize);
- if (!dbx) {
+ rc = get_cert_list(L"dbx", &secure_var, &dbxsize, &dbx);
+ if (rc < 0) {
pr_info("MODSIGN: Couldn't get UEFI dbx list\n");
pr_info("Couldn't get UEFI dbx list\n");
- } else {
+ } else if (dbxsize != 0) {
rc = parse_efi_signature_list("UEFI:dbx",
dbx, dbxsize,
get_handler_for_dbx);
--
2.15.0

8
0003-Make-get_cert_list-use-efi_status_to_str-to-print-er.patch
View File

@ -6,13 +6,13 @@ Subject: [PATCH 3/3] Make get_cert_list() use efi_status_to_str() to print
Signed-off-by: Peter Jones <pjones@redhat.com>
---
certs/load_uefi.c | 6 ++++--
security/integrity/platform_certs/load_uefi.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/certs/load_uefi.c b/certs/load_uefi.c
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
index 9ef34c44fd1..13a2826715d 100644
--- a/certs/load_uefi.c
+++ b/certs/load_uefi.c
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -51,7 +51,8 @@ static __init int get_cert_list(efi_char16_t *name, efi_guid_t *guid,
}

1
configs/fedora/generic/x86/CONFIG_INTEGRITY_PLATFORM_KEYRING Normal file
View File

@ -0,0 +1 @@
CONFIG_INTEGRITY_PLATFORM_KEYRING=y

2
kernel-i686-debug.config
View File

@ -2335,7 +2335,7 @@ CONFIG_INT3406_THERMAL=m
CONFIG_INT340X_THERMAL=m
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_PLATFORM_KEYRING=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY=y
CONFIG_INTEL_ATOMISP2_PM=m

2
kernel-i686.config
View File

@ -2317,7 +2317,7 @@ CONFIG_INT3406_THERMAL=m
CONFIG_INT340X_THERMAL=m
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_PLATFORM_KEYRING=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY=y
CONFIG_INTEL_ATOMISP2_PM=m

2
kernel-x86_64-debug.config
View File

@ -2380,7 +2380,7 @@ CONFIG_INT3406_THERMAL=m
CONFIG_INT340X_THERMAL=m
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_PLATFORM_KEYRING=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY=y
CONFIG_INTEL_ATOMISP2_PM=m

2
kernel-x86_64.config
View File

@ -2362,7 +2362,7 @@ CONFIG_INT3406_THERMAL=m
CONFIG_INT340X_THERMAL=m
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_PLATFORM_KEYRING=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY=y
CONFIG_INTEL_ATOMISP2_PM=m

9
kernel.spec
View File

@ -544,12 +544,6 @@ Patch201: efi-lockdown.patch
Patch202: KEYS-Allow-unrestricted-boot-time-addition-of-keys-t.patch
Patch204: Add-an-EFI-signature-blob-parser-and-key-loader.patch
Patch205: MODSIGN-Import-certificates-from-UEFI-Secure-Boot.patch
Patch206: MODSIGN-Support-not-importing-certs-from-db.patch
# bz 1497559 - Make kernel MODSIGN code not error on missing variables
Patch207: 0001-Make-get_cert_list-not-complain-about-cert-lists-tha.patch
Patch208: 0002-Add-efi_status_to_str-and-rework-efi_status_to_err.patch
@ -1878,6 +1872,9 @@ fi
#
#
%changelog
* Mon Jan 07 2019 Justin M. Forbes <jforbes@fedoraproject.org>
- Updates for secure boot
* Mon Jan 07 2019 Laura Abbott <labbott@redhat.com> - 5.0.0-0.rc1.git0.1
- Linux v5.0-rc1