kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service

A flaw was found in the Linux kernel's bonding driver. A local attacker with low privileges could exploit a use-after-free vulnerability in the bondxmitbroadcast function. This occurs due to a race condition during concurrent slave enslave/release operations, which can lead to the original socket...

kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

Linux Distros Unpatched Vulnerability : CVE-2026-46140

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync cast...

UBUNTU-CVE-2026-46140

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync casts the WMT event response SKB data to struct btmtkhciwmtevt 7 bytes and struct btmtkhciwmtevtfuncc 9 bytes without first checking that the...

CVE-2026-46207

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix empty payload in tap skb for non-linear buffers For non-linear skbs, virtiotransportbuildskb goes through virtiotransportcopynonlinearskb to copy the original payload in the new skb to be delivered to the vsockm...

CVE-2026-46188 octeon_ep_vf: add NULL check for napi_build_skb()

In the Linux kernel, the following vulnerability has been resolved: octeonepvf: add NULL check for napibuildskb napibuildskb can return NULL on allocation failure. In octepvfoqprocessrx, the result is used directly without a NULL check in both the single-buffer and multi-fragment paths, leading t...

CVE-2026-46140

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync casts the WMT event response SKB data to struct btmtkhciwmtevt 7 bytes and struct btmtkhciwmtevtfuncc 9 bytes without first checking that the...

CVE-2026-46140 Bluetooth: btmtk: validate WMT event SKB length before struct access

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync casts the WMT event response SKB data to struct btmtkhciwmtevt 7 bytes and struct btmtkhciwmtevtfuncc 9 bytes without first checking that the...

EUVD-2026-32767

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtkusbhciwmtsync casts the WMT event response SKB data to struct btmtkhciwmtevt 7 bytes and struct btmtkhciwmtevtfuncc 9 bytes without first checking that the...

kernel: can: j1939: j1939_session_new(): fix skb reference counting

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra skbget for each new skb, do the same for the initial one in j1939sessionnew to avoid refcount underflow. mkl: clean up commit messag...

CVE-2026-45929

A flaw was found in the Linux kernel's ovpn module. A use-after-free vulnerability exists in the ovpnnetxmit function where a freed skb socket buffer pointer can be used for subsequent operations. This can occur when skbsharecheck frees the original skb if it is shared, leading to a stale pointer...

PT-2026-44311

In the Linux kernel, the following vulnerability has been resolved: octeon ep vf: add NULL check for napi build skb napi build skb can return NULL on allocation failure. In octep vf oq process rx, the result is used directly without a NULL check in both the single-buffer and multi-fragment paths,...

CVE-2026-46000

A flaw was found in the Linux kernel's rxrpc component. Security operations that decrypt RESPONSE packets in place may share the socket buffer skbuff with a packet sniffer. This could allow a local attacker or an attacker with network access to intercept and view decrypted portions of these...

CVE-2026-45998

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skbunshare failure If skbunshare fails to unshare a packet due to allocation failure in rxrpcinputpacket, the skb pointer in the parent rxrpciothread will be NULL'd out. This will likely cause the...

UBUNTU-CVE-2026-45929

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix possible use-after-free in ovpnnetxmit When building the skblist in ovpnnetxmit, skbsharecheck will free the original skb if it is shared. The current implementation continues to use the stale skb pointer for subsequent...

CVE-2026-46102

The CVE-2026-46102 issue affects the Linux kernel network stream parser (net: strparser). When the stream parser is aborted (e.g., after a message assembly timeout), the partially assembled message referenced by strp->skb_head is not released in strp_abort_strp(), causing a memory leak that co...

EUVD-2026-32485

In the Linux kernel, the following vulnerability has been resolved: net: strparser: fix skbhead leak in strpabortstrp When the stream parser is aborted, for example after a message assembly timeout, it can still hold a reference to a partially assembled message in strp-skbhead. That skb is not...

PT-2026-43796

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix possible use-after-free in ovpn net xmit When building the skb list in ovpn net xmit, skb share check will free the original skb if it is shared. The current implementation continues to use the stale skb pointer for...

PT-2026-43753

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf xdp store bytes proto for read-only arg While making some maps in Cilium read-only from the BPF side, we noticed that the bpf xdp store bytes proto is incorrect. In particular, the verifier was throwing the following...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the possibility of setting the skb pointer to null when rxrpc fails to unshare a skb, potentially leadi...