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s390: avoid format strings leaking into names

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This makes sure format strings can't accidentally leak into kernel
interface names.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Kees Cook 2014-06-10 10:46:20 -07:00 committed by Martin Schwidefsky
parent 0eb69a0c58
commit ef283688f5
3 changed files with 3 additions and 3 deletions
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2
drivers/s390/block/dcssblk.c
View File

@ -593,7 +593,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
dev_info->start = dcssblk_find_lowest_addr(dev_info);
dev_info->end = dcssblk_find_highest_addr(dev_info);
dev_set_name(&dev_info->dev, dev_info->segment_name);
dev_set_name(&dev_info->dev, "%s", dev_info->segment_name);
dev_info->dev.release = dcssblk_release_segment;
dev_info->dev.groups = dcssblk_dev_attr_groups;
INIT_LIST_HEAD(&dev_info->lh);

2
drivers/s390/char/vmlogrdr.c
View File

@ -761,7 +761,7 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
dev = kzalloc(sizeof(struct device), GFP_KERNEL);
if (dev) {
dev_set_name(dev, priv->internal_name);
dev_set_name(dev, "%s", priv->internal_name);
dev->bus = &iucv_bus;
dev->parent = iucv_root;
dev->driver = &vmlogrdr_driver;

2
drivers/s390/crypto/zcrypt_api.c
View File

@ -356,7 +356,7 @@ struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
zops = __ops_lookup(name, variant);
if (!zops) {
request_module(name);
request_module("%s", name);
zops = __ops_lookup(name, variant);
}
if ((!zops) || (!try_module_get(zops->owner)))