CVE-2026-31738
Published: May 1, 2026
Modified: May 23, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa - < 901c1dd3bab2955d7e664f914c374c8c3ac2b958affected 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa - < e476745917a1e288eb15e7ff49d286a86a4861d3affected 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa - < 2029712fb2c87e9a8c75094906f2ee29bf08c500affected 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa - < 602596c69a70e50d9ab8c6ae0290a01f88229dd7affected 4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa - < de20d2e3b9179d132f5f5b44e490d7c916c6321b+7 more versions |
Linux | Linux | affected 3.14unaffected 0 - < 3.14unaffected 5.10.253 - <= 5.10.*unaffected 5.15.203 - <= 5.15.*unaffected 6.1.168 - <= 6.1.*+5 more versions |
References
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