CVE-2026-89790

A flaw was found in the Linux kernel's IPv6 networking subsystem. A race condition can occur during IPv6 multipath route rebalancing, where a concurrent update can lead to a divide-by-zero error. This vulnerability can cause the kernel to crash, resulting in a Denial of Service DoS for the affect...

CVE-2026-93226

A flaw was found in the Linux kernel's IPv6 networking subsystem. A race condition occurs when reading route exception lists without proper synchronization against concurrent route updates. A local user can trigger this flaw by querying network routing tables during simultaneous route updates,...

CVE-2026-98598

A flaw was found in the Linux kernel's IPv6 networking subsystem. A local attacker or network traffic triggering route exceptions while an IPv6 route is being removed can cause a circular reference leak. This failure to release resources prevents network devices from unregistering, resulting in...

CVE-2026-98596

A flaw was found in the Linux kernel's IPv6 networking subsystem. A race condition during network device unregistration can lead to improper reference counting of uncached routes. A local attacker could exploit this flaw to cause an internal resource leak, leading to memory exhaustion and a Denia...

CVE-2026-98570

A flaw was found in the Linux kernel's IPv6 networking subsystem. An unauthenticated remote attacker can cause a Denial of Service DoS by sending network traffic through an affected IPv6 tunnel interface. Due to insufficient buffer allocation when reconstructing packet headers, an unchecked...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

CVE-2026-89783

A flaw was found in the Linux kernel's IPv6 networking component. An error in handling security path depth could allow an out-of-bounds write. A remote attacker could exploit this by sending specially crafted IPv6 packets, leading to a system crash and causing a Denial of Service DoS. Mitigation...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: fix use-after-free in ip6_finish_output2()

A flaw was found in the Linux kernel's IPv6 networking stack. A use-after-free vulnerability exists in the ip6finishoutput2 function, where a cached pointer to the IPv6 destination address can become stale after memory reallocation. An attacker could potentially exploit this to leak sensitive...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: fix use-after-free in ip6_finish_output2()

A flaw was found in the Linux kernel's IPv6 networking stack. A use-after-free vulnerability exists in the ip6finishoutput2 function, where a cached pointer to the IPv6 destination address can become stale after memory reallocation. An attacker could potentially exploit this to leak sensitive...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: fix use-after-free in ip6_finish_output2()

A flaw was found in the Linux kernel's IPv6 networking stack. A use-after-free vulnerability exists in the ip6finishoutput2 function, where a cached pointer to the IPv6 destination address can become stale after memory reallocation. An attacker could potentially exploit this to leak sensitive...

CVE-2026-98101

A flaw was found in the Linux kernel's IPv6 networking subsystem. A race condition in the ip6mcsource function allows concurrent packet processing routines to observe inconsistent multicast source filter lists when entries are modified in place. A local user could exploit this flaw by changing...

USN-8851-3 linux-azure-5.4 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network file system NFS server daemon; - IPv6 networking; - Netfilter; CVE-2025-38724, CVE-2026-53131, CVE-2026-532...