CVE-2026-64000
Published Jul 19, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix potential OOB access in supervision frame handling Ensure the entire TLV header is linearized before access by adding sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this, a truncated frame could cause an out-of-bounds access.
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References
Other References
https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48
https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37
https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d
https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852
https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3
https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7
Frequently Asked Questions
What is CVE-2026-64000? +
In the Linux kernel, the following vulnerability has been resolved:
net: hsr: fix potential OOB access in supervision frame handling
Ensure the entire TLV header is linearized before access by adding
sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,
a truncated frame could cause an out-of-bounds access.
How do I check if I'm vulnerable to CVE-2026-64000? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.