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: 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: 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: 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...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: fixed a use-after-free in ip6finishoutput2 The ip6finishOutput2 function caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations withi...

CVE-2026-80792

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...

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

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: prevented UAF in ip6sendskb syzbot reported a UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue was fixed in the commit a688caa34beb...

SUSE CVE-2026-80792

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2026-80792 ipv6: fix use-after-free in ip6_finish_output2()

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

EUVD-2026-71435

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2026-80792

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2026-80792 ipv6: fix use-after-free in ip6_finish_output2()

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2026-80792: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2026-80792: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6finishoutput2 ip6finishoutput2 caches a pointer to the IPv6 destination address daddr before invoking lwtunnelxmit. The LWT-BPF transmit path or other encapsulation operations within lwtunnelxmit ca...

CVE-2025-40158

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6output Use RCU in ip6output in order to use dstdevrcu to prevent possible UAF. We can remove rcureadlock/rcureadunlock pairs from ip6finishoutput2...

CVE-2024-44986

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6finishoutput2 If skbexpandhead returns NULL, skb has been freed and associated dst/idev could also have been freed. We need to hold rcureadlock to make sure the dst and associated idev are alive...

CVE-2024-44987

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent UAF in ip6sendskb syzbot reported an UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue has been fixed in commit a688caa34beb "ipv...

CVE-2024-44987 ipv6: prevent UAF in ip6_send_skb()

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent UAF in ip6sendskb syzbot reported an UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue has been fixed in commit a688caa34beb "ipv...

CVE-2024-44987 ipv6: prevent UAF in ip6_send_skb()

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent UAF in ip6sendskb syzbot reported an UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue has been fixed in commit a688caa34beb "ipv...

CVE-2024-44987

Summary of CVE-2024-44987 (Linux kernel) : A use-after-free in ip6_send_skb() was reported by syzbot. After ip6_local_out() returns, dereferencing rt could occur without holding rcu_read_lock(), enabling a slab-use-after-free as shown in the kasan trace net/ipv6/ip6_output.c:1964. The issue is mi...