kernel/git/stable/linux.git/drivers/net/ethernet, branch master

Merge tag 'net-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-07-09T15:26:51+00:00

Pull networking fixes from Paolo Abeni: "Including fixes from netfilter, Bluetooth and batman-adv. Current release - regressions: - bluetooth: fix using chan->conn as indication to no remote netdev Current release - new code bugs: - netfilter: cap to maximum number of expectation per master on updates Previous releases - regressions: - bluetooth: - fix UAF of hci_conn_params in add_device_complete - fix null ptr deref in hci_abort_conn() - igmp: remove multicast group from hash table on device destruction - batman-adv: prevent TVLV OOB check overflow - eth: mlx5/mlx5e: - fix off-by-one in single-FDB error rollback - skip peer flow cleanup when LAG seq is unavailable - fix crashes in dynamic per-channel stats and HV VHCA agent - eth: mana: Sync page pool RX frags for CPU Previous releases - always broken: - netfilter: - mark malformed IPv6 extension headers for hotdrop - terminate table name before find_table_lock() - ipvs: use parsed transport offset in TCP state lookup - sched: act_pedit: fix TOCTOU heap OOB write in tc offload - ethtool: rss: fix hfunc and input_xfrm parsing on big endian - ipv4/ipv6: fix UAF and memory leak in IGMP/MLD - tls: consume empty data records in tls_sw_read_sock() - eth: - octeontx2-af: fix VF bringup affecting PF promiscuous state - gue: validate REMCSUM private option length" * tag 'net-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (94 commits) macsec: don't read an unset MAC header in macsec_encrypt() dibs: loopback: validate offset and size in move_data() octeontx2-af: fix VF bringup affecting PF promiscuous state ethtool: rss: Fix hfunc and input_xfrm parsing on big endian net/mlx5: Fix L3 tunnel entropy refcount leak net: macb: drop in-flight Tx SKBs on close net: mana: Sync page pool RX frags for CPU net: mana: Validate the packet length reported by the NIC selftests/net: fix EVP_MD_CTX leak in tcp_mmap ipvs: ensure inner headers in ICMP errors are in headroom ipvs: use parsed transport offset in SCTP state lookup ipvs: use parsed transport offset in TCP state lookup ipvs: pass parsed transport offset to state handlers netfilter: handle unreadable frags netfilter: flowtable: support IPIP tunnel with direct xmit netfilter: flowtable: IPIP tunnel hardware offload is not yet support netfilter: flowtable: use dst in this direction when pushing IPIP header netfilter: ipset: allocate the proper memory for the generic hash structure netfilter: ipset: cleanup the add/del backlog when resize failed netfilter: ipset: exclude gc when resize is in progress ...

octeontx2-af: fix VF bringup affecting PF promiscuous state

2026-07-09T10:00:04+00:00

Mbox handling of nix_set_rx_mode for a VF with promiscuous and all_multi flags set to false causes deletion of the PF's promiscuous and allmulti MCAM rules. This occurs because the APIs that enable/disable these rules operate only on the PF, even when the mbox request is made via a VF interface. Guard both rvu_npc_enable_allmulti_entry() and rvu_npc_enable_promisc_entry() disable paths with an is_vf() check so that a VF bringing up or tearing down its interface cannot inadvertently clear the PF's MCAM rules. Fixes: 967db3529eca ("octeontx2-af: add support for multicast/promisc packet replication feature") Signed-off-by: Harman Kalra Signed-off-by: Nitin Shetty J Link: https://patch.msgid.link/20260702045616.3002773-2-nshettyj@marvell.com Signed-off-by: Paolo Abeni

net/mlx5: Fix L3 tunnel entropy refcount leak

2026-07-09T09:21:12+00:00

mlx5_tun_entropy_refcount_inc() counts both VXLAN and L2-to-L3 tunnel reformat entries as entropy-enabling users. The matching decrement path only handled VXLAN, leaving L2-to-L3 tunnel entries counted after release. Handle MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL in mlx5_tun_entropy_refcount_dec() as well so the enabling entry refcount remains balanced. Fixes: f828ca6a2fb6 ("net/mlx5e: Add support for hw encapsulation of MPLS over UDP") Signed-off-by: Li RongQing Reviewed-by: Simon Horman Reviewed-by: Tariq Toukan Link: https://patch.msgid.link/20260703141423.1723-1-lirongqing@baidu.com Signed-off-by: Paolo Abeni

net: macb: drop in-flight Tx SKBs on close

2026-07-09T08:48:15+00:00

The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty. Fixes: 89e5785fc8a6 ("[PATCH] Atmel MACB ethernet driver") Cc: stable@vger.kernel.org Reviewed-by: Nicolai Buchwitz Signed-off-by: Théo Lebrun Link: https://patch.msgid.link/20260702-macb-drop-tx-v4-1-1c833eebdbc8@bootlin.com Signed-off-by: Paolo Abeni

net: mana: Sync page pool RX frags for CPU

2026-07-09T08:36:14+00:00

MANA allocates RX buffers from page pool fragments when frag_count is greater than 1. In that case the buffers remain DMA mapped by page pool and the RX completion path does not call dma_unmap_single(). As a result, the implicit sync-for-CPU normally performed by dma_unmap_single() is missing before the packet data is passed to the networking stack. This breaks RX on configurations which require explicit DMA syncing, for example when booted with swiotlb=force. Fix this by recording the page pool page and DMA sync offset when the RX buffer is allocated, and syncing the received packet range for CPU access before handing the RX buffer to the stack. Fixes: 730ff06d3f5c ("net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency.") Cc: stable@vger.kernel.org Reviewed-by: Haiyang Zhang Signed-off-by: Dexuan Cui Link: https://patch.msgid.link/20260702041237.617719-3-decui@microsoft.com Signed-off-by: Paolo Abeni

net: mana: Validate the packet length reported by the NIC

2026-07-09T08:35:54+00:00

Validate the packet length reported in the RX CQE before passing it to skb processing. The CQE is supplied by the NIC device and should not be blindly trusted. Cc: stable@vger.kernel.org Reviewed-by: Haiyang Zhang Signed-off-by: Dexuan Cui Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)") Link: https://patch.msgid.link/20260702041237.617719-2-decui@microsoft.com Signed-off-by: Paolo Abeni

octeontx2-pf: check DMAC extraction support before filtering

2026-07-08T10:01:13+00:00

Currently, configuring a VF MAC address via the PF (e.g., 'ip link set vf 0 mac ') blindly attempts to install a DMAC-based hardware filter. However, the hardware parser profile might not support DMAC extraction. Check if the hardware parsing profile supports DMAC extraction before adding the filter. Additionally, emit a warning message to inform the operator if the MAC filter installation fails due to missing DMAC extraction support. Update config->mac only after hardware programming succeeds in otx2_set_vf_mac(). Fixes: f0c2982aaf98 ("octeontx2-pf: Add support for SR-IOV management functions") Signed-off-by: Suman Ghosh Signed-off-by: Nitin Shetty J Reviewed-by: Harshitha Ramamurthy Link: https://patch.msgid.link/20260702033451.2969880-1-nshettyj@marvell.com Signed-off-by: Paolo Abeni

net/liquidio: drop cached VF pci_dev LUT

2026-07-07T09:03:35+00:00

The PF SR-IOV enable path caches VF pci_dev pointers in dpiring_to_vfpcidev_lut[] by iterating with pci_get_device(). Those entries do not own a reference, because the iterator drops the previous device reference on each step. The cached pointer is then dereferenced later when handling OCTEON_VF_FLR_REQUEST. Replace the cached VF mapping with runtime lookup on the mailbox DPI ring: derive the VF index from q_no, resolve the VF via exported PCI IOV helpers, validate it with the PF pointer and VF ID, then issue pcie_flr() and drop the reference with pci_dev_put(). Remove the unused VF lookup table initialization and cleanup. Fixes: ca6139ffc67ee ("liquidio CN23XX: sysfs VF config support") Fixes: 8c978d059224 ("liquidio CN23XX: Mailbox support") Signed-off-by: Yuho Choi Link: https://patch.msgid.link/20260701040847.1897845-1-dbgh9129@gmail.com Signed-off-by: Paolo Abeni

net: rnpgbe: fix mailbox endianness and remove pointer casts

2026-07-07T08:45:42+00:00

The rnpgbe mailbox exchanges data through 32-bit MMIO registers in little-endian wire format. The original code had two problems: 1. FW structs (with __le16/__le32 fields) were cast to (u32 *) before reaching the mailbox transport, hiding the endian annotations from sparse. 2. No cpu_to_le32()/le32_to_cpu() conversion was done between CPU-endian MMIO values and the little-endian payload, causing data corruption on big-endian systems. Fix by adding the missing byte-order conversions in the transport layer and introducing union wrappers (mbx_fw_cmd_req_u, mbx_fw_cmd_reply_u) that overlay each FW struct with a __le32 dwords[] array. Callers fill named fields using cpu_to_le16/32(), then pass dwords[] to the transport, which now takes explicit __le32 * instead of u32 *. This eliminates all pointer casts on the mailbox data path and lets sparse verify the conversions. Fixes: 4543534c3ef5 ("net: rnpgbe: Add basic mbx ops support") Signed-off-by: Dong Yibo Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20260701032208.1843156-2-dong100@mucse.com Signed-off-by: Paolo Abeni

net: qualcomm: rmnet: validate MAP frame length before ingress parsing

2026-07-06T10:47:02+00:00

When ingress deaggregation is disabled, rmnet_map_ingress_handler() passes the skb straight to __rmnet_map_ingress_handler(), skipping the length validation that rmnet_map_deaggregate() performs on the aggregated path. The parser then dereferences the MAP header and csum header/trailer based on the on-wire pkt_len without checking skb->len, so a short frame is read out of bounds: BUG: KASAN: slab-out-of-bounds in rmnet_map_checksum_downlink_packet Read of size 1 at addr ffff88801118ed00 by task exploit/147 Call Trace: ... rmnet_map_checksum_downlink_packet (drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:413) __rmnet_map_ingress_handler (drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:96) rmnet_rx_handler (drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:129) __netif_receive_skb_core.constprop.0 (net/core/dev.c:6089) netif_receive_skb (net/core/dev.c:6460) tun_get_user (drivers/net/tun.c:1955) tun_chr_write_iter (drivers/net/tun.c:2001) vfs_write (fs/read_write.c:688) ksys_write (fs/read_write.c:740) do_syscall_64 (arch/x86/entry/syscall_64.c:94) ... Factor that validation out of rmnet_map_deaggregate() into rmnet_map_validate_packet_len() and run it on the no-aggregation path too. The MAP header is bounds-checked first, since this path can receive a frame shorter than the header. Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation") Reported-by: Weiming Shi Suggested-by: Subash Abhinov Kasiviswanathan Signed-off-by: Xiang Mei Reviewed-by: Subash Abhinov Kasiviswanathan Link: https://patch.msgid.link/20260630174110.2003121-1-xmei5@asu.edu Signed-off-by: Paolo Abeni