[4.4,32/38] net: ieee802154: forbid monitor for set llsec params
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Message ID 20210415144414.385468574@linuxfoundation.org
State New
Headers show
Series
  • Untitled series #495364
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Commit Message

Greg Kroah-Hartman April 15, 2021, 2:47 p.m. UTC
From: Alexander Aring <aahringo@redhat.com>

commit 88c17855ac4291fb462e13a86b7516773b6c932e upstream.

This patch forbids to set llsec params for monitor interfaces which we
don't support yet.

Reported-by: syzbot+8b6719da8a04beeafcc3@syzkaller.appspotmail.com
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-3-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ieee802154/nl802154.c |    3 +++
 1 file changed, 3 insertions(+)

Patch
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--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1367,6 +1367,9 @@  static int nl802154_set_llsec_params(str
 	u32 changed = 0;
 	int ret;
 
+	if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+		return -EOPNOTSUPP;
+
 	if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
 		u8 enabled;