diff options
Diffstat (limited to 'lib/efi_loader/efi_device_path_to_text.c')
| -rw-r--r-- | lib/efi_loader/efi_device_path_to_text.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c index 81b8ac23ba5..edc9fdc3870 100644 --- a/lib/efi_loader/efi_device_path_to_text.c +++ b/lib/efi_loader/efi_device_path_to_text.c @@ -67,7 +67,8 @@ static char *dp_hardware(char *s, struct efi_device_path *dp) s += sprintf(s, "VenHw(%pUl", &vdp->guid); n = (int)vdp->dp.length - sizeof(struct efi_device_path_vendor); - if (n > 0) { + /* Node must fit into MAX_NODE_LEN) */ + if (n > 0 && n < MAX_NODE_LEN / 2 - 22) { s += sprintf(s, ","); for (i = 0; i < n; ++i) s += sprintf(s, "%02x", vdp->vendor_data[i]); @@ -251,7 +252,8 @@ static char *dp_media(char *s, struct efi_device_path *dp) s += sprintf(s, "VenMedia(%pUl", &vdp->guid); n = (int)vdp->dp.length - sizeof(struct efi_device_path_vendor); - if (n > 0) { + /* Node must fit into MAX_NODE_LEN) */ + if (n > 0 && n < MAX_NODE_LEN / 2 - 24) { s += sprintf(s, ","); for (i = 0; i < n; ++i) s += sprintf(s, "%02x", vdp->vendor_data[i]); |