CVE-2026-63924
Published: July 22, 2026Last modified: July 22, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.177-r0) |
| 25 LTS | linux-lts | Fixed (6.12.95-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/2b56bbd928c030894c270cd33d60286326919458
- https://git.kernel.org/stable/c/645b99b1a185c91a79bdac4c5de0f91b212d64f0
- https://git.kernel.org/stable/c/72af7beae774e46ed543f3f2f267bf0a141bfcdd
- https://git.kernel.org/stable/c/9e883eaa878f4337b5873c706efb5a192364ed18
- https://git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f
- https://git.kernel.org/stable/c/bddaa4dfc7f36e1ee343a0622f69288af2b9ace9
- https://git.kernel.org/stable/c/c512e1c819dfbf6ae95ee7a44b65b9ad98979157
- https://git.kernel.org/stable/c/d47548a36639095939f4747d4c43f2271366f565