Merge tag 'net-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf.

  Relatively calm week, likely due to public holiday in most places. No
  known outstanding regressions.

  Current release - regressions:

   - rxrpc: fix wrong alignmask in __page_frag_alloc_align()

   - eth: e1000e: change usleep_range to udelay in PHY mdic access

  Previous releases - regressions:

   - gro: fix udp bad offset in socket lookup

   - bpf: fix incorrect runtime stat for arm64

   - tipc: fix UAF in error path

   - netfs: fix a potential infinite loop in extract_user_to_sg()

   - eth: ice: ensure the copied buf is NUL terminated

   - eth: qeth: fix kernel panic after setting hsuid

  Previous releases - always broken:

   - bpf:
       - verifier: prevent userspace memory access
       - xdp: use flags field to disambiguate broadcast redirect

   - bridge: fix multicast-to-unicast with fraglist GSO

   - mptcp: ensure snd_nxt is properly initialized on connect

   - nsh: fix outer header access in nsh_gso_segment().

   - eth: bcmgenet: fix racing registers access

   - eth: vxlan: fix stats counters.

  Misc:

   - a bunch of MAINTAINERS file updates"

* tag 'net-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits)
  MAINTAINERS: mark MYRICOM MYRI-10G as Orphan
  MAINTAINERS: remove Ariel Elior
  net: gro: add flush check in udp_gro_receive_segment
  net: gro: fix udp bad offset in socket lookup by adding {inner_}network_offset to napi_gro_cb
  ipv4: Fix uninit-value access in __ip_make_skb()
  s390/qeth: Fix kernel panic after setting hsuid
  vxlan: Pull inner IP header in vxlan_rcv().
  tipc: fix a possible memleak in tipc_buf_append
  tipc: fix UAF in error path
  rxrpc: Clients must accept conn from any address
  net: core: reject skb_copy(_expand) for fraglist GSO skbs
  net: bridge: fix multicast-to-unicast with fraglist GSO
  mptcp: ensure snd_nxt is properly initialized on connect
  e1000e: change usleep_range to udelay in PHY mdic access
  net: dsa: mv88e6xxx: Fix number of databases for 88E6141 / 88E6341
  cxgb4: Properly lock TX queue for the selftest.
  rxrpc: Fix using alignmask being zero for __page_frag_alloc_align()
  vxlan: Add missing VNI filter counter update in arp_reduce().
  vxlan: Fix racy device stats updates.
  net: qede: use return from qede_parse_actions()
  ...

1 files changed, 19 insertions, 8 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b99127712e67..4096e679f61c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2123,11 +2123,17 @@ static inline int skb_alloc_rx_flag(const struct sk_buff *skb)
 
 struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask)
 {
-	int headerlen = skb_headroom(skb);
-	unsigned int size = skb_end_offset(skb) + skb->data_len;
-	struct sk_buff *n = __alloc_skb(size, gfp_mask,
-					skb_alloc_rx_flag(skb), NUMA_NO_NODE);
+	struct sk_buff *n;
+	unsigned int size;
+	int headerlen;
+
+	if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST))
+		return NULL;
 
+	headerlen = skb_headroom(skb);
+	size = skb_end_offset(skb) + skb->data_len;
+	n = __alloc_skb(size, gfp_mask,
+			skb_alloc_rx_flag(skb), NUMA_NO_NODE);
 	if (!n)
 		return NULL;
 
@@ -2455,12 +2461,17 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	/*
 	 *	Allocate the copy buffer
 	 */
-	struct sk_buff *n = __alloc_skb(newheadroom + skb->len + newtailroom,
-					gfp_mask, skb_alloc_rx_flag(skb),
-					NUMA_NO_NODE);
-	int oldheadroom = skb_headroom(skb);
 	int head_copy_len, head_copy_off;
+	struct sk_buff *n;
+	int oldheadroom;
+
+	if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST))
+		return NULL;
 
+	oldheadroom = skb_headroom(skb);
+	n = __alloc_skb(newheadroom + skb->len + newtailroom,
+			gfp_mask, skb_alloc_rx_flag(skb),
+			NUMA_NO_NODE);
 	if (!n)
 		return NULL;