CVE-2026-31738
MEDIUM SEVERITYCVSS Score & Metrics
Base Score
5.5 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
vxlan: validate ND option lengths in vxlan_na_create
vxlan_na_create() walks ND options according to option-provided
lengths. A malformed option can make the parser advance beyond the
computed option span or use a too-short source LLADDR option payload.
Validate option lengths against the remaining NS option area before
advancing, and only read source LLADDR when the option is large enough
for an Ethernet address.
vxlan: validate ND option lengths in vxlan_na_create
vxlan_na_create() walks ND options according to option-provided
lengths. A malformed option can make the parser advance beyond the
computed option span or use a too-short source LLADDR option payload.
Validate option lengths against the remaining NS option area before
advancing, and only read source LLADDR when the option is large enough
for an Ethernet address.
Vulnerability Details
Published Date
Last Modified
CWE ID
NVD-CWE-noinfo
Source
NVD
Vendor
Linux
Product
Linux
External References
- https://git.kernel.org/stable/c/2029712fb2c87e9a8c75094906f2ee29bf08c500
- https://git.kernel.org/stable/c/602596c69a70e50d9ab8c6ae0290a01f88229dd7
- https://git.kernel.org/stable/c/901c1dd3bab2955d7e664f914c374c8c3ac2b958
- https://git.kernel.org/stable/c/afa9a05e6c4971bd5586f1b304e14d61fb3d9385
- https://git.kernel.org/stable/c/b69c4236255bd8de16cd876e58c6f0867d1d78b1
- https://git.kernel.org/stable/c/de20d2e3b9179d132f5f5b44e490d7c916c6321b
- https://git.kernel.org/stable/c/e476745917a1e288eb15e7ff49d286a86a4861d3
- https://git.kernel.org/stable/c/eddfce70a6f3107d1679b0c2fcbeb96b593bd679
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