This is the 5.4.218 stable release

-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmNKSyYACgkQONu9yGCS
 aT7eFhAAxIHNQdbLULupIiyUaKLmbso5Wjmd/pCPBhkSERDEahmQ6rfd7R3200R4
 Fk8kbvXAfTlYGSa8dnZqIIJbRdq3dcyq9YbUMqJRd+Jsep24e4YmUd/9oeNdL7t9
 6j4EEEPUW0I5xlFST1nPjOCRKF8XMh7aqH8CJdaMyTqv5lrePb6qnDlaUBmwaZVG
 3TzBZG7Kfopdj8jCKyOcDBCZ8sOL8sUUTN9cblL+keBdSojZsSBKzw8OFSBVUBJU
 WTZrRf2tieMaeZICNhREwqp6vPdHSmvj6XiFdrw6aePR9XczuR1oxBMVR5jvhZIS
 00jAk17D6t8Xy7pX4NW+WkwZoaL+TsLlvNlvHfgdlAE6uBMYOfwiVzE9/E8rx3cP
 BK/xoUH/lAnWJ7sQOcdQj761pgo+lBZjottQx3KIhPqvaZK1LtADx6OmnGMtJI11
 4yF0+w60p3H4LiXa0fgLEjXDlXX/v9P47UjMkog2xeMFpsx1/a1HYDpiC938+uAw
 9o9YeNja/mGm2xYwNi28vjdTyNJAVo1g80qYG+ExIO6gbtCr2yBR1MxXlrxH8HEY
 Y2qKHte6ppFJ6p4BpivcIt+Ft6MT1BrMyPakF2QwMScUGWElO6qGFiWS/Y6UI0fh
 bjQLRjB2rRwpoMtyl3HoFPfbHIR0C6xFvAwcx7mZbF0xrK2lI7Y=
 =Cli8
 -----END PGP SIGNATURE-----

Merge 5.4.218 into android11-5.4-lts

Changes in 5.4.218
	mm: pagewalk: Fix race between unmap and page walker
	perf tools: Fixup get_current_dir_name() compilation
	fs: fix UAF/GPF bug in nilfs_mdt_destroy
	firmware: arm_scmi: Add SCMI PM driver remove routine
	dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property
	dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure
	ARM: dts: fix Moxa SDIO 'compatible', remove 'sdhci' misnomer
	scsi: qedf: Fix a UAF bug in __qedf_probe()
	net/ieee802154: fix uninit value bug in dgram_sendmsg
	um: Cleanup syscall_handler_t cast in syscalls_32.h
	um: Cleanup compiler warning in arch/x86/um/tls_32.c
	arch: um: Mark the stack non-executable to fix a binutils warning
	usb: mon: make mmapped memory read only
	USB: serial: ftdi_sio: fix 300 bps rate for SIO
	mmc: core: Replace with already defined values for readability
	mmc: core: Terminate infinite loop in SD-UHS voltage switch
	rpmsg: qcom: glink: replace strncpy() with strscpy_pad()
	nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level()
	nilfs2: fix leak of nilfs_root in case of writer thread creation failure
	nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
	ceph: don't truncate file in atomic_open
	random: clamp credited irq bits to maximum mixed
	ALSA: hda: Fix position reporting on Poulsbo
	efi: Correct Macmini DMI match in uefi cert quirk
	scsi: stex: Properly zero out the passthrough command structure
	USB: serial: qcserial: add new usb-id for Dell branded EM7455
	random: restore O_NONBLOCK support
	random: avoid reading two cache lines on irq randomness
	random: use expired timer rather than wq for mixing fast pool
	wifi: cfg80211: fix u8 overflow in cfg80211_update_notlisted_nontrans()
	wifi: cfg80211/mac80211: reject bad MBSSID elements
	wifi: cfg80211: ensure length byte is present before access
	wifi: cfg80211: fix BSS refcounting bugs
	wifi: cfg80211: avoid nontransmitted BSS list corruption
	wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
	wifi: cfg80211: update hidden BSSes to avoid WARN_ON
	Input: xpad - add supported devices as contributed on github
	Input: xpad - fix wireless 360 controller breaking after suspend
	Linux 5.4.218

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I181935d163a9900b8e9e1201d3fde0c56b61dc58

include/net/ieee802154_netdev.h

@@ -15,6 +15,22 @@
 #ifndef IEEE802154_NETDEVICE_H
 #define IEEE802154_NETDEVICE_H
 
+#define IEEE802154_REQUIRED_SIZE(struct_type, member) \
+	(offsetof(typeof(struct_type), member) + \
+	sizeof(((typeof(struct_type) *)(NULL))->member))
+
+#define IEEE802154_ADDR_OFFSET \
+	offsetof(typeof(struct sockaddr_ieee802154), addr)
+
+#define IEEE802154_MIN_NAMELEN (IEEE802154_ADDR_OFFSET + \
+	IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, addr_type))
+
+#define IEEE802154_NAMELEN_SHORT (IEEE802154_ADDR_OFFSET + \
+	IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, short_addr))
+
+#define IEEE802154_NAMELEN_LONG (IEEE802154_ADDR_OFFSET + \
+	IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, hwaddr))
+
 #include <net/af_ieee802154.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
@@ -165,6 +181,27 @@ static inline void ieee802154_devaddr_to_raw(void *raw, __le64 addr)
 	memcpy(raw, &temp, IEEE802154_ADDR_LEN);
 }
 
+static inline int
+ieee802154_sockaddr_check_size(struct sockaddr_ieee802154 *daddr, int len)
+{
+	struct ieee802154_addr_sa *sa;
+
+	sa = &daddr->addr;
+	if (len < IEEE802154_MIN_NAMELEN)
+		return -EINVAL;
+	switch (sa->addr_type) {
+	case IEEE802154_ADDR_SHORT:
+		if (len < IEEE802154_NAMELEN_SHORT)
+			return -EINVAL;
+		break;
+	case IEEE802154_ADDR_LONG:
+		if (len < IEEE802154_NAMELEN_LONG)
+			return -EINVAL;
+		break;
+	}
+	return 0;
+}
+
 static inline void ieee802154_addr_from_sa(struct ieee802154_addr *a,
 					   const struct ieee802154_addr_sa *sa)
 {