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

A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash denial of...

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

In the Linux kernel, the following vulnerability has been resolved: icmp6: Fixed the null-ptr-deref of ip6nullentry-rt6iidev in icmp6dev. With some IPv6 Ext Hdr RPL, SRv6, etc., we can send a packet that has the link-local address as src and dst IP, and it will be forwarded to an external IP in t...

Astra Linux – Vulnerability in Linux, Linux 5.10

A flaw in the processing of received ICMP errors such as ICMP fragments and ICMP redirections within the Linux kernel’s functionality was identified. This flaw allows an off-path remote user to quickly scan open UDP ports. This vulnerability enables a remote user to bypass the UDP source port...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: The issue was that can: ucan: introduced an out-of-bound read in the strscpy function’s source code. Commit 7fdaf8966aae “can: ucan: use strscpy instead of strncpy” inadvertently resulted in an out-of-bound read of one byte from...

kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

A flaw was found in the Linux kernel's IPv6 ICMP error generation. A remote attacker could send a specially crafted IPv4 ICMP error packet with a Common Internet Protocol Security Option CIPSO IP option. This could lead to incorrect handling of packet control block data when generating an IPv6 IC...

CVE-2026-45536

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has...

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

A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash denial of...

Netty: Unix-socket fd receive leaks descriptors when peer sends two at once

nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has cmsglen = CMSGLEN8 = 24, which fits exactly with no MSGCTRUNC, so the kernel installs both fds in the receiving process. The subsequent che...

GHSA-W573-9FFJ-6FF9 Netty: Unix-socket fd receive leaks descriptors when peer sends two at once

nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has cmsglen = CMSGLEN8 = 24, which fits exactly with no MSGCTRUNC, so the kernel installs both fds in the receiving process. The subsequent che...

CVE-2026-7423

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-1681

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

PT-2026-46029

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the handling of RAW sockets using the IPPROTO RAW protocol. A malicious incoming ICMP packet can have its protocol field set to 255, allowing it to match a socket...

ipv4: icmp: validate reply type before using icmp_pointers

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SUSE CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

CVE-2026-46103

In the Linux kernel, the following vulnerability has been resolved: can: ucan: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers...

UBUNTU-CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

UBUNTU-CVE-2026-46103

In the Linux kernel, the following vulnerability has been resolved: can: ucan: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers...

CVE-2026-46103

In the Linux kernel, a fix for devres lifetime in the can: ucan path addresses memory-management where USB driver resources tied to an interface were not properly released when the driver is unbound (e.g., probe deferral or config changes). The issue affects USB drivers binding to interfaces and ...

CVE-2026-46037 ipv4: icmp: validate reply type before using icmp_pointers

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...