Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers. Let's recompute nh pointer to make sure any change won't mess things up.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/2b56bbd928c030894c270cd33d60286326919458 Patch
- git.kernel.org/stable/c/645b99b1a185c91a79bdac4c5de0f91b212d64f0 Patch
- git.kernel.org/stable/c/72af7beae774e46ed543f3f2f267bf0a141bfcdd Patch
- git.kernel.org/stable/c/9e883eaa878f4337b5873c706efb5a192364ed18 Patch
- git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f Patch
- git.kernel.org/stable/c/bddaa4dfc7f36e1ee343a0622f69288af2b9ace9 Patch
- git.kernel.org/stable/c/c512e1c819dfbf6ae95ee7a44b65b9ad98979157 Patch
- git.kernel.org/stable/c/d47548a36639095939f4747d4c43f2271366f565 Patch
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 54 · as of 14 November 2026
- CWE
- CWE-416CWE-822
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.