EUVD-2026-39336

In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using ethhdr ip6teui64, xtmac, the bitmap:ip,mac, hash:ip,mac, and hash:mac ipset types, and nflogsyslog access ethhdrskb after either assuming that the skb is associated with an...

CVE-2026-53254

The CVE-2026-53254 issue affects the Linux kernel Bluetooth RFCOMM MCC handlers, where skb->data was cast to protocol-specific structs without validating skb->len. A malicious remote device can send truncated MCC frames to trigger out-of-bounds reads. The fix adds proper data validation via...

EUVD-2026-39205

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: validate skb length in MCC handlers The RFCOMM MCC handlers cast skb-data to protocol-specific structs without validating skb-len first. A malicious remote device can send truncated MCC frames and trigger...

CVE-2026-53247

CVE-2026-53247 affects the Linux kernel’s MTK Ethernet subsystem (net: ethernet: mtk_eth_soc). The vulnerability arises in the RX path when using non-refcounted pointers to a metadata_dst; mtk_free_dev() frees the metadata_dst with kfree(), bypassing the RCU grace period, creating a potential use...

EUVD-2026-39326

In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...

EUVD-2026-39320

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix DMA and xdpframe leak on XDPTX xmit failure In the XSK branch of mlx5exmitxdpbuff, when sq-xmitxdpframe returns false e.g. XDPSQ is full, the function returns without unmapping the DMA address or freeing the...

EUVD-2026-39318

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...

CVE-2026-53215

The CVE-2026-53215 entry affects the Linux kernel mvpp2 RX path. The issue occurs when mvpp2_rx_refill() can fail after the current RX buffer has been handed to XDP or attached to an skb, causing mvpp2_run_xdp() to have recycled, redirected, or queued the page and leaving the data buffer potentia...

CVE-2026-53184

The CVE describes a Linux kernel bug on the UDP receive path when a socket is in a sockmap. skb->dev is repurposed as dev_scratch and is not cleared before running the attached SK_SKB verdict program; if the verdict calls socket-lookup helpers (bpf_sk_lookup_tcp/udp, bpf_skc_lookup_tcp), skb-&...

EUVD-2026-39275

In the Linux kernel, the following vulnerability has been resolved: udp: clear skb-dev before running a sockmap verdict On the UDP receive path skb-dev is repurposed as devscratch the truesize/state cache set by udpsetdevscratch, through the union struct netdevice dev; unsigned long devscratch; i...

CVE-2026-53132

CVE-2026-53132 concerns the Linux kernel via vsock/virtio, addressing an unbounded skb queue in the virtio transport path. The root cause is that virtio_transport_inc_rx_pkt() and virtio_transport_recv_enqueue() can allow a growing queue when fed with packets of length 0 ending with VIRTIO_VSOCK_...

EUVD-2026-38861

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipcbufappend tipcmsgvalidate can potentially reallocate the skb it is validating, freeing the old one. In tipcbufappend, it was being called with a pointer to a local variable which was a copy of the...

EUVD-2026-38849

In the Linux kernel, the following vulnerability has been resolved: neigh: let neighxmit take skb ownership neighxmit always releases the skb, except when no neighbour table is found. But even the first added user of neighxmit mpls relied on neighxmit to release the skb or queue it for tx. sashik...

EUVD-2026-38862

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix MSGZEROCOPY pinned-pages accounting virtiotransportinitzcopyskb uses iter-count as the size argument for msgzerocopyrealloc, which in turn passes it to mmaccountpinnedpages for RLIMITMEMLOCK accounting. However,...

EUVD-2026-38732

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: fix missing zerocopy reference in pskbcarve helpers pskbcarveinsideheader and pskbcarveinsidenonlinear both copy the old skbsharedinfo header into a new buffer via memcpy, which includes the destructorarg pointer uar...

EUVD-2026-38710

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

kernel: net/sched: act_pedit: extend the writable skb range per key

A flaw was found in the Linux kernel's traffic control packet editing pedit subsystem. In tcfpeditact, the copy-on-write COW range for skbensurewritable is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can...

kernel: net/sched: act_pedit: extend the writable skb range per key

A flaw was found in the Linux kernel's traffic control packet editing pedit subsystem. In tcfpeditact, the copy-on-write COW range for skbensurewritable is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can...

kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs

A flaw was found in the Linux kernel's Generic Receive Offload GRO networking subsystem. This vulnerability occurs when skbgroreceive attempts to merge zerocopy socket buffers skbs without properly managing page reference counts, specifically when the SKBFLMANAGEDFRAGREFS flag is set. An attacker...

RockyLinux 8 : kernel-rt (RLSA-2026:27354)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:27354 advisory. kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service CVE-2026-31419 kernel: drm/amd/display: Do not skip unrelated mode...