CVE-2024-36903: Linux kernel · ipv6: Fix potential uninit-value access in __ip6_make_skb()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 10 Nov 2026, 14:50 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 30 May 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Linux Linux | Affected
| Fixed in– |
AI-suggested
A fix has been implemented in the Linux kernel to address this vulnerability. Users should update to the patched kernel versions listed as affected versions to remediate the issue.
Description
A vulnerability in the Linux kernel's IPv6 implementation was fixed to prevent potential uninitialized value access in the __ip6_make_skb() function. The issue was due to a race condition caused by improper flag checking, which could lead to uninitialized memory usage. This flaw was addressed by changing the flag check to FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags, similar to a previous fix for IPv4.
References
- git.kernel.org/stable/c/59d74c843ebf46264c7903726cf6f2673a93b07a (opens in a new tab)
- git.kernel.org/stable/c/40e5444a3ac315b60e94d82226b73cd82145d09e (opens in a new tab)
- git.kernel.org/stable/c/a05c1ede50e9656f0752e523c7b54f3a3489e9a8 (opens in a new tab)
- git.kernel.org/stable/c/68c8ba16ab712eb709c6bab80ff151079d11d97a (opens in a new tab)
- git.kernel.org/stable/c/2367bf254f3a27ecc6e229afd7a8b0a1395f7be3 (opens in a new tab)
- git.kernel.org/stable/c/4e13d3a9c25b7080f8a619f961e943fe08c2672c (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/08/msg00010.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)