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fusee: fix stack oob read

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This commit is contained in:
Michael Scire 2019-01-30 21:56:33 -08:00
parent bdfd7946e3
commit 6c41e105c4
1 changed files with 3 additions and 3 deletions
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6
fusee/fusee-secondary/src/nxboot.c
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@ -411,7 +411,7 @@ uint32_t nxboot_main(void) {
/* Get the TSEC keys. */ /* Get the TSEC keys. */
uint8_t tsec_key[0x10] = {0}; uint8_t tsec_key[0x10] = {0};
uint8_t tsec_root_key[0x10] = {0}; uint8_t tsec_root_keys[0x20][0x10] = {0};
if (target_firmware >= ATMOSPHERE_TARGET_FIRMWARE_700) { if (target_firmware >= ATMOSPHERE_TARGET_FIRMWARE_700) {
/* TODO: what to do here? */ /* TODO: what to do here? */
if (tsec_get_key(tsec_key, 1, tsec_fw, tsec_fw_size) != 0) { if (tsec_get_key(tsec_key, 1, tsec_fw, tsec_fw_size) != 0) {
@ -425,7 +425,7 @@ uint32_t nxboot_main(void) {
/* Copy back the keys. */ /* Copy back the keys. */
memcpy((void *)tsec_key, (void *)tsec_keys, 0x10); memcpy((void *)tsec_key, (void *)tsec_keys, 0x10);
memcpy((void *)tsec_root_key, (void *)tsec_keys + 0x10, 0x10); memcpy((void *)tsec_root_keys, (void *)tsec_keys + 0x10, 0x10);
} else { } else {
/* Run the TSEC payload and get the key. */ /* Run the TSEC payload and get the key. */
if (tsec_get_key(tsec_key, 1, tsec_fw, tsec_fw_size) != 0) { if (tsec_get_key(tsec_key, 1, tsec_fw, tsec_fw_size) != 0) {
@ -435,7 +435,7 @@ uint32_t nxboot_main(void) {
/* Derive keydata. */ /* Derive keydata. */
unsigned int keygen_type = 0; unsigned int keygen_type = 0;
if (derive_nx_keydata(target_firmware, g_keyblobs, available_revision, tsec_key, tsec_root_key, &keygen_type) != 0) { if (derive_nx_keydata(target_firmware, g_keyblobs, available_revision, tsec_key, tsec_root_keys, &keygen_type) != 0) {
fatal_error("[NXBOOT]: Key derivation failed!\n"); fatal_error("[NXBOOT]: Key derivation failed!\n");
} }