CVE-2026-53111

CVE-2026-53111 is a Linux kernel issue where bpf_lwt_xmit_push_encap dereferences skb_dst(skb)->dev during test_run when skb->_skb_refdst is uninitialized, leading to a kernel crash. A patch and remediation include initializing skb->_skb_refdst before bpf_test_run_skb, as evidenced by Ro...

CVE-2026-53070 sctp: disable BH before calling udp_tunnel_xmit_skb()

In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb udptunnelxmitskb / udptunnel6xmitskb are expected to run with BH disabled. After commit 6f1a9140ecda "add xmit recursion limit to tunnel xmit functions", on the path:...

CVE-2026-53014 net/sched: act_mirred: fix wrong device for mac_header_xmit check in tcf_blockcast_redir

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: fix wrong device for macheaderxmit check in tcfblockcastredir In tcfblockcastredir, when iterating block ports to redirect packets to multiple devices, the macheaderxmit flag is queried from the wrong device...

CVE-2026-52982 net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: net: usb: rtl8150: fix use-after-free in rtl8150startxmit syzbot reported a KASAN slab-use-after-free read in rtl8150startxmit when accessing skb-len for tx statistics after usbsubmiturb has been called: BUG: KASAN:...

PT-2026-52005

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.19.0-rc5 Description A null pointer dereference issue exists in the bpf lwt xmit push encap helper. The issue occurs because the skb- skb refdst variable may not be initialized when the socket buffer skb is set up by the...

PT-2026-51908

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the tcf blockcast redir function where the mac header xmit flag is queried from the incorrect device when iterating through block ports to redirect packets. The system...

PT-2026-51964

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SCTP implementation where Bottom Half BH processing is not disabled before calling the udp tunnel xmit skb and udp tunnel6 xmit skb functions. These functions are...

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...

RHEL 8 : kernel (RHSA-2026:22964)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:22964 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free speci...

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...

EUVD-2026-32213

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-2026-45929

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-2026-45929 ovpn: fix possible use-after-free in ovpn_net_xmit

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-2026-45929

In CVE-2026-45929, Linux kernel ovpn: fix possible use-after-free in ovpn_net_xmit. The vulnerability arises when skb_share_check frees the original skb during skb_list construction, but subsequent operations re-use a now-stale skb pointer (peer lookup, skb_dst_drop, and ovpn_peer_stats_increment...

CVE-2026-45929 ovpn: fix possible use-after-free in ovpn_net_xmit

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...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ovpnnetxmit function in ovpn. This function continues to use an expired pointer after releasi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xfrm: Policy issue: Fixing the metadata dst-dev xmit null pointer dereference. When we attempt to transmit an skb with metadatadst attached i.e., dst-dev == NULL through the xfrm interface, we may encounter a null pointer...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Staging: r8712: Fixed a memory leak in r8712initxmitpriv In the aforementioned routine, memory is allocated in several places. If the first attempt to allocate memory succeeds, but a subsequent attempt fails, the routine will cau...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: vxlan: Prevent NULL dereferencing in vxlanxmitone. Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlanxmitone, especially if the iface is disabled. This can lead to the following NULL dereferences: -...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: lwt: Fixed the return values of BPF xmit operations. The BPF encap operations can return different types of positive values, such as NETRXDROP, NETXMITCN, NETDEVTXBUSY, etc., from the functions skbdoredirect and...