by Kastro CVE-2026-63924
Linux Linux — ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()
Description · from the CVE record
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
ProductAffectedFixed inSource
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b3ac54e5c905f86d22b502eacb5686a282c5659fb3ac54e5c905f86d22b502eacb5686a282c5659fCNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 645b99b1a185c91a79bdac4c5de0f91b212d64f0645b99b1a185c91a79bdac4c5de0f91b212d64f0CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9e883eaa878f4337b5873c706efb5a192364ed189e883eaa878f4337b5873c706efb5a192364ed18CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < bddaa4dfc7f36e1ee343a0622f69288af2b9ace9bddaa4dfc7f36e1ee343a0622f69288af2b9ace9CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 72af7beae774e46ed543f3f2f267bf0a141bfcdd72af7beae774e46ed543f3f2f267bf0a141bfcddCNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c512e1c819dfbf6ae95ee7a44b65b9ad98979157c512e1c819dfbf6ae95ee7a44b65b9ad98979157CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2b56bbd928c030894c270cd33d602863269194582b56bbd928c030894c270cd33d60286326919458CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d47548a36639095939f4747d4c43f2271366f565d47548a36639095939f4747d4c43f2271366f565CNA
Linux2.6.12–CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total