CVE-2024-36903 ipv6: Fix potential uninit-value access in __ip6_make_skb()

What is CVE-2024-36903?

CVE-2024-36903 is a medium-severity vulnerability in Linux kernel, published on 30 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix potential uninit-value access in __ip6_make_skb()

As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.

Weakness: CWE-908

Which versions are affected by CVE-2024-36903?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-36903?

Apply the vendor's patch.

Is CVE-2024-36903 being exploited?

There is no known exploitation of CVE-2024-36903 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• How this page is made

Also known as AZL-56225, BELL-CVE-2024-36903, DEBIAN-CVE-2024-36903, ROOT-OS-DEBIAN-11-CVE-2024-36903, ROOT-OS-DEBIAN-12-CVE-2024-36903, ROOT-OS-UBUNTU-2204-CVE-2024-36903 and 1 more.