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

In the Linux kernel, the following vulnerabilities have been resolved: ipv4: Fixed access to uninit-value in ipmakeskb. KMSAN reported access to uninit-value in ipmakeskb. ipmakeskb checks HDRINCL to determine whether the skb contains icmphdr. However, HDRINCL can cause a race condition. If...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ICMP: Fixed data races related to sysctl. When reading ICMP sysctl variables, they can be changed concurrently. Therefore, we need to add READONCE to avoid data races...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ICMP: Prevent possible NULL dereferencing from icmpbuildprobe. The first issue involves a double call to indevgetrcu; since the second call might return NULL. if indevgetrcudev && indevgetrcudev-ifalist The second issue involv...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xfrm: fixed the race condition in ipRtbug for icmpRouteLookup reverse path icmpRouteLookup performs multiple route lookups to find a suitable route for sending ICMP error messages, with special handling for XFRM IPsec policies. T...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clearing the skb2-cb array in ip6errgenicmpv6unreach According to Sashiko’s AI-review, the following issues were observed: 1. In ip6errgenicmpv6unreach, skb represents an outer IPv4 ICMP error packet. Its cb contains ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tunnels: Fixed the crash when generating IPV4 PMTU errors due to KASAN. If we attempt to emit an ICMP error in response to a non-linear SKB, we encounter the following issue: Bug: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability in OVN

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header’s self-declared total length iptotlen for IPv4, ip6plen for IPv6, without validating it against the actual packet buffer siz...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ICMP: Fixed data races related to sysctlicmpechoenableprobe. When reading sysctlicmpechoenableprobe, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

pingtunnel master-d7cd0d6ab5f18e7d8d050385e8d240b3b2f41e6c

Pingtunnel Pingtunnel is a tool that sends TCP/UDP traffic over ICMP. Note: This tool is only to be used for study and research, do not use it for illegal purposes Usage & Detailed Documentation 📖 For detailed documentation, seeUSAGE.md: includes complete command-line parameters, configuration fi...

kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP

A flaw was found in the Linux kernel's handling of RAW sockets using IPPROTORAW. A remote attacker could send a specially crafted ICMP Internet Control Message Protocol packet. This malicious packet could set the protocol field to 255, causing it to be processed by a RAW socket configured for...

kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP

A flaw was found in the Linux kernel's handling of RAW sockets using IPPROTORAW. A remote attacker could send a specially crafted ICMP Internet Control Message Protocol packet. This malicious packet could set the protocol field to 255, causing it to be processed by a RAW socket configured for...

CVE-2017-6455

creationtimestamp| type| source ---|---|--- 2026-09-07 13:15:19+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3muwlohukka2v...

The vulnerability of the icmpv6_rcv() function in the net/ipv6/icmp.c module of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the icmpv6rcv function in the net/ipv6/icmp.c module of the Linux operating system is related to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality, integrity, and accessibility of the protected...

The vulnerability of the icmp_build_probe() function in the net/ipv4/icmp.c module of the Linux operating system allows a hacker to induce a service failure.

The vulnerability of the icmpbuildprobe function in the net/ipv4/icmp.c module of the Linux operating system is related to pointer manipulation. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

ROS-20260827-73-0012

The vulnerability of the iptunnelpmtudbuildicmp function in the net/ipv4/iptunnelcore.c module of the Linux kernel is related to the execution of operations outside of the buffer boundaries. Exploitation of this vulnerability could allow an attacker to compromise the confidentiality, integrity, a...

CVE-2026-74747

CVE-2026-74747 affects the Linux kernel in the ipvs (IP Virtual Server) subsystem, specifically in ip_vs_nat_icmp() . After reading embedded IP headers from skb frags, the ihl field is not revalidated; a local process can modify it so that after skb_ensure_writable() a larger value is visible, ca...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104550)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104550 advisory. In the Linux kernel, the following vulnerability has been resolved: ipvs: ensure inner headers in ICMP errors are in headroom Sashiko points out that after stripping...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098725)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098725 advisory. In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTORAW MUST drop incoming ICMP Yizhou Zhao reported that simply havi...

PT-2026-82127

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ipvs module where the system fails to revalidate embedded headers after reading them from the skb frags. A local process can modify the ihl field, which, following...

CVE-2026-74597

A flaw was found in the Linux kernel's IPv6 Internet Protocol version 6 tunnel error handling. A remote attacker could send a specially crafted IPv6 ICMP Internet Control Message Protocol error packet with a malformed inner destination-options header. This could lead to memory corruption within t...