mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 04:18:39 +08:00
NFC: fix attrs checks in netlink interface
nfc_genl_deactivate_target() relies on the NFC_ATTR_TARGET_INDEX attribute being present, but doesn't check whether it is actually provided by the user. Same goes for nfc_genl_fw_download() and NFC_ATTR_FIRMWARE_NAME. This patch adds appropriate checks. Found with syzkaller. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
d24b6c624b
commit
18917d5147
@ -970,7 +970,8 @@ static int nfc_genl_dep_link_down(struct sk_buff *skb, struct genl_info *info)
|
||||
int rc;
|
||||
u32 idx;
|
||||
|
||||
if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
|
||||
if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
|
||||
!info->attrs[NFC_ATTR_TARGET_INDEX])
|
||||
return -EINVAL;
|
||||
|
||||
idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
|
||||
@ -1018,7 +1019,8 @@ static int nfc_genl_llc_get_params(struct sk_buff *skb, struct genl_info *info)
|
||||
struct sk_buff *msg = NULL;
|
||||
u32 idx;
|
||||
|
||||
if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
|
||||
if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
|
||||
!info->attrs[NFC_ATTR_FIRMWARE_NAME])
|
||||
return -EINVAL;
|
||||
|
||||
idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
|
||||
|
Loading…
Reference in New Issue
Block a user