CVE-2026-53208

A flaw was found in the Linux kernel's Bluetooth subsystem. A remote attacker within radio range, before pairing, can send specially crafted Bluetooth BR/EDR Basic Rate/Enhanced Data Rate signaling packets that exceed the maximum transmission unit MTU for signaling. This improper handling of...

CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

UBUNTU-CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

EUVD-2026-39299

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: brnetfilter: fix a kernel panic when sending untagged traffic via a VxLAN device. This issue occurs during the check for fragmentation in brnfdevqueuexmit. It depends on the following conditions: 1 The brnetfilter modu...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: Validates the MTU against the usable frame size when binding. The AFXDP binding currently accepts zero-copy pool configurations without verifying that the device’s MTU fits within the usable frame space provided by the UMEM...

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

In the Linux kernel, the following vulnerability has been resolved: The mcbausb driver fails to populate the ndochangemtu function, allowing for a buffer overflow. Sending a PFPACKET message allows bypassing the CAN driver’s logic and directly reaching the xmit function of the CAN driver. The onl...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv4: Use RCU protection in iprtupdatepmtu. iprtupdatepmtu must use RCU protection to ensure that the network structure it reads does not disappear...

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

In the Linux kernel, the following vulnerability has been resolved: llc: Makes llcuisendmsg more robust against changes related to bonding. syzbot was able to exploit llcuisendmsg, allocating a skb without sufficient headroom, and then attempting to append 14 bytes of Ethernet header information...

kernel: net: use dst_dev_rcu() in sk_setup_caps()

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

Linux Distros Unpatched Vulnerability : CVE-2026-45952

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: eth: fbnic: Add validation for MTU changes Increasing the MTU beyond the HDS threshold cause...

EUVD-2026-32236

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Add validation for MTU changes Increasing the MTU beyond the HDS threshold causes the hardware to fragment packets across multiple buffers. If a single-buffer XDP program is attached, the driver will drop all multi-fr...

UBUNTU-CVE-2026-45952

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Add validation for MTU changes Increasing the MTU beyond the HDS threshold causes the hardware to fragment packets across multiple buffers. If a single-buffer XDP program is attached, the driver will drop all multi-fr...

CVE-2026-45952 eth: fbnic: Add validation for MTU changes

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Add validation for MTU changes Increasing the MTU beyond the HDS threshold causes the hardware to fragment packets across multiple buffers. If a single-buffer XDP program is attached, the driver will drop all multi-fr...

CVE-2026-45952

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Add validation for MTU changes Increasing the MTU beyond the HDS threshold causes the hardware to fragment packets across multiple buffers. If a single-buffer XDP program is attached, the driver will drop all multi-fr...

CVE-2026-45952

eth: fbnic: Add validation for MTU changes...

PT-2026-43819

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The fbnic driver fails to validate MTU changes after an XDP eXpress Data Path program is attached. Increasing the MTU beyond the HDS threshold causes the hardware to fragment packets...

CVE-2026-43092

A flaw was found in the Linux kernel's AFXDP eXpress Data Path subsystem. The AFXDP bind operation fails to validate the Maximum Transmission Unit MTU against the usable frame space provided by the UMEM User Memory chunk. This can lead to situations where the configured MTU does not fit,...

CVE-2026-43092 xsk: validate MTU against usable frame size on bind

In the Linux kernel, the following vulnerability has been resolved: xsk: validate MTU against usable frame size on bind AFXDP bind currently accepts zero-copy pool configurations without verifying that the device MTU fits into the usable frame space provided by the UMEM chunk. This becomes a...